Technology

[The Rock Doctor]

As of 1/1/1910...

Green:  Got it
Yellow:  Getting it.

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, %u201CPair of Twins%u201D Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture:
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have cross-sectional hull strength > 0.9
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have cross-sectional hull strength > 0.75

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting:
Baseline: Mk1 Eyeball, standard searchlights in regular mountings.
1908: Basic tactics, Specialised nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars)
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1915: refined Huelsmeyer-type "radar"
1930: Primitive search RADAR

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Army Units
Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns.
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Improvised Short range Anti-Armor equipment.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialised short range Anti-Armor equipment.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment.

Artillery Units
Baseline: Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets
1880: Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Improved Breech loading guns. Primitive Recoilless carriages for light field pieces
1905: Proliferation of recoilless carriages for light field pieces.
1915 Proliferation of recoilless carriages for heavy field pieces. Increase number of heavy guns. Experimental MLRS.
1925: Improved carriages. Primitive and limited use Self-Propelled Carriages for light guns. Primitive MLRS.
1935: Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets
1945: Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1913: Up to Historical 1916 aircraft and countermeasures
1917: Up to Historical 1918 aircraft and countermeasures
1921: Up to Historical 1922 aircraft and countermeasures
1925: Up to Historical 1926 aircraft and countermeasures
1929: Up to Historical 1930 aircraft and countermeasures
1933: Up to Historical 1934 aircraft and countermeasures
1937: Up to Historical 1938 aircraft and countermeasures
1941: Up to Historical 1942 aircraft and countermeasures
1945: Up to Historical 1946 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.
1905: Shallow draft barges and shallow draft support ships
1910: LST ships
1920: Landing support ships and LST carriers
1928: Mulberry harbors and amphibious vehicles.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

As of 1/1/1913...

Green:  Got it
Yellow:  Getting it.

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, %u201CPair of Twins%u201D Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture:
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have cross-sectional hull strength > 0.9
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have cross-sectional hull strength > 0.75

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting:
Baseline: Mk1 Eyeball, standard searchlights in regular mountings.
1908: Basic tactics, Specialised nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars)
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1915: refined Huelsmeyer-type "radar"
1930: Primitive search RADAR

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Army Units
Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns.
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Improvised Short range Anti-Armor equipment.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialised short range Anti-Armor equipment.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment.

Artillery Units
Baseline: Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets
1880: Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Improved Breech loading guns. Primitive Recoilless carriages for light field pieces
1905: Proliferation of recoilless carriages for light field pieces.
1915 Proliferation of recoilless carriages for heavy field pieces. Increase number of heavy guns. Experimental MLRS.
1925: Improved carriages. Primitive and limited use Self-Propelled Carriages for light guns. Primitive MLRS.
1935: Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets
1945: Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1913: Up to Historical 1916 aircraft and countermeasures
1917: Up to Historical 1918 aircraft and countermeasures
1921: Up to Historical 1922 aircraft and countermeasures
1925: Up to Historical 1926 aircraft and countermeasures
1929: Up to Historical 1930 aircraft and countermeasures
1933: Up to Historical 1934 aircraft and countermeasures
1937: Up to Historical 1938 aircraft and countermeasures
1941: Up to Historical 1942 aircraft and countermeasures
1945: Up to Historical 1946 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.
1905: Shallow draft barges and shallow draft support ships
1910: LST ships
1920: Landing support ships and LST carriers
1928: Mulberry harbors and amphibious vehicles.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1913 - Correct Tech Tree this time...

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, %u201CPair of Twins%u201D Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+


Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1916 (Barring unforeseen changes to the 2/16 plans)

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets

1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+


Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1918

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.

1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+


Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1919

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+


Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1920

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+


Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1922

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1924

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.
[/quote]

[The Rock Doctor]

Updated Technology Situation, end of 1925

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.

[The Rock Doctor]

Updated Technology Situation, end of 1929

Green = Done
Yellow = Doing
Red = Needs to be Done

Naval Artillery
Baseline: Muzzle-Loading cannon. Primitive Breechloaders. Solid Shot. Primitive High Explosive Shells
1880: Breach loading guns. High Explosive Shells.
1895: Quick-Firing guns. Semi-Armor Piercing Shells
1900: Smokeless Powder.
1905: Improved Smokeless Powder. Armor Piercing Shells
1910: Capped Shells
1915: Shells can be 10% over SS default
1920: Improved Capped Shells Shells can be 20% over SS default
1925: Advanced Capped Shells

Naval Propulsion:
Baseline: Simple Reciprocating Engines
1895: Complex Reciprocating Engines, Oil Spraying up to 10% of bunkerage.
1902: Turbines, Underway Recoaling
1906: Electric Drives, Oil Fired Boilers
1909: Hydraulic Drives
1912: Geared Drives
1915: Diesel Engines
1918: Underway Oiling

Capital Ship Architecture:
Baseline: Main guns in twin turrets, secondaries in casemate, tertiary in casemate or deck mounts.
1891: Mixed-caliber main battery (Main+intermediary calibers), Superfiring secondaries (Restricted Axial Firing Arcs) and Stacked Main Battery turrets OR Main caliber battery in AQY. [Pick One Only]
1903: All-big-gun ship with wing turrets OR Superfiring turrets (restricted axial firing arcs) [Pick one or both]
1905: Improved turret hydraulics, independent gun elevation, Torpedo Bulkheads, triple turrets
1910: Superfiring turrets (unrestricted firing arcs), "All or Nothing" Protective Schemes, "Pair of Twins" Quadruple turrets
1914: True Quadruple turrets, Sloped external belts
1920:  No restriction (high or low) on caliber of turreted guns
1926: Primitive DP secondary batteries
1932: Improved DP Secondary batteries. De-Capping plates
1940: Advanced DP Secondary batteries.
1946: Automatic Secondary Guns

Aircraft/Seaplane Carrier Architecture:
Baseline: None
1910: Experimental aviation ships. Requires and is automatically granted upon completion of the 1910 Aircraft tech.
1915: floatplanes; flying-off decks for wheeled aircraft. Primitive Air-Launched torpedoes
1918: gunpowder catapults for floatplanes; separate landing and taking-off decks for wheeled aircraft. Early Air-Launched torpedoes. Rapid Consecutive Takeoffs limited to single aircraft.
1922: hydraulic catapults; full length decks for wheeled aircraft; arrestor wires. Primitive Anti-Shipping Bombs. Rapid Consecutive Takeoffs limited to single squadrons
1924: Improved airgroup handling practices. Primitive deck parks. Anti-Ship Level Bombing. Rapid Consecutive Takeoffs with no more than 25% of the airgroup
1928: armored box carrier Improved Air-Launched Torpedoes. Early Anti-Ship Dive Bombs
1932: Early Deck-Parks, Rapid Consecutive Takeoffs with no more than 50% of the airgroup
1938: Improved Anti-Ship Dive Bombs, Improved deck parks and hanger ventilation. Rapid Consecutive Takeoffs with no more than 75% of the airgroup
1942: Advanced Deck Parks. Advanced Air-Launched Torpedoes. Advanced Anti-Ship Dive Bombs. Rapid Consecutive Takeoffs with 100% of the airgroup.

Cruiser Architecture: For all years, Cruisers with turrets shall have a composite hull strength > 1.0.
Baseline: guns in single mounts or casemates, on side/centerline
1900: ammunition hoists, deck torpedo armament, superfiring mounts. Cruisers under 6000 tons may have composite hull strength > 0.90
1910: twin gun mounts (require hoists); powered gun mounts; unrestricted weapon armor
1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

Note: effective HY1, 1913: Pre-existing cruisers are grandfathered. If they have a turret and 0.90 hull, presume they have required extra bracing, and the lesson has been learned.

Destroyer, Torpedo Boat, and Motor Torpedo Boat Architecture:
Baseline: single TTs - max 4, displacement 500t
1904: double TTs - max 8, displacement 750t Type A MTB
1908: triple TTs - max 12, displacement 1000t Type B MTB
1912: max displacement 1500t Type C, D MTB
1918: quad TTs, 2000t Type E, F MTB
1924: quintuple tubes, 2,500t Type G, H MTB
1928: Type H, I, J MTB

Motor Torpedo Boats       
Year Type LD(t) Main Gun MG TT Misc. Weight Cruise Range Medium Range Fast Range Crew
1905 A 40 1x50mm or less 2 2 0 1000@10  300@16 10
1910 B 20 0 2 2 0 500@10  100@20 6
1914 C 20 0 2 2 0 500@10 100@20 40@26 6
1914 D 40 1x50mm or less 2 2 0 1000@10 200@20 100@25 11
1918 E 20 0 2 2 0 500@10 100@20 20@30 6
1918 F 40 1x50mm or less 2 2 0 1000@10 200@20 70@28 12
1922 G 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 15
1922 H 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 20
1928 I 40 1x50mm or less 2 2 0 1000@10 200@20 50@30 16
1928 J 80 1x77mm or less 2 2 2 2000@10 400@20 100@30 24
1928 K 120 1x77mm or less, 1x50mm or less 2 4 4 3000@10 600@20 150@30 30

Mine Warfare:
Baseline: Hand detonated mines. Running into mines with ships.
1897: Primitive Horn Mines
1900: Reliable Horn mines. Primitive paravanes and dragged booms behind small vessels.
1908: Early antenna mines. Advanced paravanes, active charges.
1918: Reliable antenna mines.
1922: Unreliable magnetic mines & countermeasures.

Night Fighting & Remote Sensing Devices:
Baseline: Mk1 Eyeball with limited optical enhancement (eg Binoculars), standard searchlights in regular mountings.
1905: Early Huelsmeyer-type "radar", listening dishes, War tuba's.
1908: Basic tactics, Specialized nighttime acquisition Searchlight mounts, night scopes
1912: Starshells, Improved tactics
1918: Illuminating shells with parachute, improved night scopes
1922: refined Huelsmeyer-type "radar". Short range directional indicator.  Magnetron Research.
1930: Primitive search RADAR. Large and crude. Long range airborne directional indicator.
1934: Improved search RADAR. These would be the first shipboard mounts.
1938: Functional Air & Surface RADAR, Proximity fuses 125mm+
1942: Airborne radars. Limited Night blindfire Fire control RADAR
1946: Full Night blindfire RADAR, Proximity fuses 75mm+

Rangefinding, Fire Control and Gunnery:
Baseline: Local control of individual guns. Limited non-rangefinding magnification equipment for main batteries. Iron sight aiming. 2km All ships equipped w/o misc weight allocation.
1905: Continuous Aim Systems. Short-base rangefinders. Dedicated Spotting infrastructure. Primitive centralization. 6km
1908: Centralized FC, early directors - 10km
1912: Primitive FC computers -14km
1918: Spotting planes, Central director stations, long base-length RF - 24km
1930:  Electromechanical FC computers - 30km

Torpedo Technologies:
Baseline: Spar mounted Torpedo, Primitive Self-Propelled Torpedoes with improvised warheads.
1890: Early Self-Propelled Torpedoes with Compressed Air engines. Primitive warheads. Early contact fuses.
1899: Early Wet Heater engines Early warheads.
1905: Improved Wet Heater engines. Improved fuses
1908: Improved warheads
1913: Advanced Wet Heater engines
1918: Advanced warheads. Advanced contact fuses.
1928: Early Oxygen Torpedoes. Primitive magnetic firing pistols.
1935: Improved Oxygen Torpedoes. Early magnetic firing pistols.
1940: Advanced Oxygen Torpedoes. Improved Magnetic firing pistols. Primitive programmable paths.
1945: Advanced magnetic firing pistols. Early programmable paths. Primitive remote guidance methods.

Submarines and Countermeasures:
1900
1905
1910
1915
1920
1925
1930
1935
1940

Submarines of Navalism
Year  Displacement Tubes and Torpedoes Gun Range Surface Range Submerged Speed Max. Depth Fuel Type
  Bow Stern Torpedoes Mines # Size Miles Days @ Miles Hours @ Surface Submerged   
1900 50 1  2    100 0.69 6 10 2 5 6 5 75 gas
1900 100 1  2    250 1.30 8 20 4 5 8 7 100 gas
1900 125 2  2    375 1.95 8 30 6 5 10 8 100 gas
1900 250 2  4    750 3.91 8 40 8 5 12 8 100 gas
1905 500 2 2 6  1 75 2,000 10.42 8 60 12 5 14 10 150 gas
1910 250 2  4    2,000 10.42 8 40 8 5 12 10 150 diesel
1910 500 2 2 6  1 75 4,000 20.83 8 60 12 5 14 10 150 diesel
1910 750 4 2 8  1 100 6,000 31.25 8 70 14 5 15 10 150 diesel
1910 1,000 4 2 12  1 100 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 125 2 0 2    1,250 6.51 8 40 8 5 9 7.5 150 diesel
1915 250 2 0 4    3,000 15.63 8 60 12 5 12 10 150 diesel
1915 1,500 4 2 16  2 150 8,000 41.67 8 90 18 5 17 10 150 diesel
1915 250 0 1  8   2,000 5.21 8 40 8 5 8 6 150 diesel
1915 500 2 1 2 8   4,000 20.83 8 60 12 5 14 10 150 diesel
1915 750 4 1 4 8 1 100 6,000 26.04 8 70 14 5 15 10 150 diesel
1915 1,000 4 1 6 12 1 100 8,000 31.25 8 90 18 5 17 10 150 diesel
1915 1,500 4 1 8 16 2 100 10,000 41.67 8 90 18 5 17 10 150 diesel
1920 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1920 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 250 diesel
1920 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 250 diesel
1920 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 250 diesel
1920 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 250 diesel
1920 2,000 6 2 20 * 2 150 12,000 41.67 10 90 18 5 17 10 250 diesel
1925 125 2 0 2 *   1,250 6.51 8 40 8 5 9 7.5 150 diesel
1925 250 2 0 4 *   3,000 15.63 10 60 12 5 12 10 150 diesel
1925 500 2 1 6 * 1 75 4,000 16.67 10 60 12 5 14 10 500 diesel
1925 750 4 1 8 * 1 100 6,000 25.00 10 70 14 5 15 10 500 diesel
1925 1,000 4 1 12 * 1 100 8,000 33.33 10 90 18 5 17 10 500 diesel
1925 1,500 4 2 16 * 2 100 10,000 41.67 10 90 18 5 17 10 500 diesel
1925 2,000 6 2 20 * 2 150 12,000 50.00 10 90 18 5 17 10 500 diesel
1925 2,500 6 2 24 * 2 203 14,000 58.33 10 90 18 5 17 10 500 diesel
1925 3,000 6 4 24 * 2 ** 16,000 66.67 10 100 20 5 17 10 500 diesel
1930 125 2 0 2 *   1,400 7.29 8 40 8 5 9 7.5 250 diesel
1930 250 2 0 4 *   3,500 14.58 10 60 12 5 12 10 250 diesel
1930 500 2 1 6 * 1 75 5,000 20.83 10 60 12 5 14 10 500 diesel
1930 750 4 1 8 * 1 100 7,000 29.17 10 70 14 5 15 10 500 diesel
1930 1,000 4 1 12 * 1 100 9,000 37.50 10 90 18 5 17 10 500 diesel
1930 1,500 4 2 16 * 2 100 11,000 45.83 10 90 18 5 17 10 500 diesel
1930 2,000 6 2 20 * 2 150 13,000 54.17 10 90 18 5 17 10 500 diesel
1930 2,500 6 2 24 * 2 203 15,000 62.50 10 90 18 5 17 10 500 diesel
1930 3,000 6 4 24 * 2 ** 17,000 70.83 10 100 20 5 17 10 500 diesel
1930 3,500 6 4 24 * 2 ** 19,000 79.17 10 100 20 5 17 10 500 diesel
1935 125 2 0 2 *   1,600 8.33 8 45 9 5 10 7.5 250 diesel
1935 250 2 0 6 *   4,000 16.67 10 70 14 5 14 10 250 diesel
1935 500 2 1 8 * 1 75 6,000 25.00 10 70 14 5 16 10 750 diesel
1935 750 4 1 12 * 1 100 8,000 33.33 10 80 16 5 17 10 750 diesel
1935 1,000 4 1 16 * 1 100 10,000 41.67 10 100 20 5 20 10 750 diesel
1935 1,500 4 2 20 * 2 100 12,000 50.00 10 100 20 5 20 10 750 diesel
1935 2,000 6 2 24 * 2 150 14,000 58.33 10 100 20 5 20 10 750 diesel
1935 2,500 6 2 24 * 2 203 16,000 66.67 10 100 20 5 20 10 750 diesel
1935 3,000 6 4 24 * 2 ** 18,000 75.00 10 120 24 5 20 10 750 diesel
1935 3,500 6 4 24 * 2 ** 20,000 83.33 10 120 24 5 20 10 750 diesel
1935 4,000 6 4 24 * 2 ** 22,000 91.67 10 120 24 5 20 10 750 diesel
1940 125 2 0 2 *   1,800 9.38 8 160 32 5 9 12 500 diesel
1940 250 4 0 6 *   4,500 23.44 8 240 48 5 11 13 500 diesel
1940 500 4 0 8 *   7,000 29.17 10 240 48 5 12 14 1000 diesel
1940 750 6 0 12 *   9,000 37.50 10 280 56 5 13 15 1000 diesel
1940 1,000 6 0 16 *   11,000 45.83 10 280 56 5 15 17 1000 diesel
1940 1,500 6 0 20 *   13,000 54.17 10 360 72 5 15 17 1000 diesel
1940 2,000 8 0 24 *   15,000 62.50 10 360 72 5 15 17 1000 diesel
1940 2,500 8 0 24 *   17,000 70.83 10 360 72 5 15 17 1000 diesel
1940 3,000 8 0 24 *   19,000 79.17 10 400 80 5 15 17 1000 diesel
1940 3,500 8 0 24 *   21,000 87.50 10 400 80 5 15 17 1000 diesel
1940 4,000 8 0 24 *   23,000 95.83 10 400 80 5 15 17 1000 diesel
1940 4,500 8 0 24 *   25,000 104.17 10 400 80 5 15 17 1000 diesel
1940 5,000 8 0 24 *   27,000 112.50 10 400 80 5 15 17 1000 diesel


Non-Naval Technology

Land Units

Baseline: United States Civil War era equipment. Muzzle loading muskets and rifles. Limited number of repeating and breach-loading rifles. Primitive Gatling Guns. Muzzle loading cannon on simple wheeled carriages. Very Primitive single-shot Black Powder rockets. 
1880: Victorian era equipment. Black Powder Bolt-Action rifles. Improved Gatling Guns in greater quantity. Improved mobility of field guns. Primitive Breech loading light field pieces.
1895: Spanish American War era equipment. Improved single-shot breechloaders. Smokeless Powder  Bolt-action rifles Primitive rifle-caliber MGs. Proliferation of QF hydraulic recoil carriages for light field pieces.
1905: Pre Great War era equipment. Improved Bolt-action rifles. Rifle-caliber MGs. Improved Breech loading guns. Primitive Recoilless carriages for light field pieces.
1915: Great War era equipment. Advanced Bolt-action rifles. Proliferation of light MGs, sprinkling of heavy MGs. Field mortars. Improvised Short range Anti-Armor equipment. Increase number of heavy guns. Experimental MLRS-style weapons.
1925: Post Great War era equipment. Improving number of man-portable automatic weapons. Proliferation of heavy MGs. Early Specialized short range Anti-Armor equipment. Improved split-tail and towable carriages. Proliferation of hydraulic recoil carriages for heavy field pieces. Primitive and limited use Self-Propelled Carriages for light guns. Primitive Artillery plotting. Primitive MLRS.
1935: Pre WWII era equipment. Semi-automatic rifles common. Early SMGs. Improved  Early Specialised short range Anti-Armor equipment. Light Anti-Armor guns.  Improved plotting integration. Improved Self-Propelled Carriages for light guns. Primitive Self-Propelled MLRS. Primitive Long-Range Rockets.
1945: WWII era equipment. Advanced semi-automatic rifles and SMGs. Early Assault Rifles. Improved Short-range anti-armor equipment. Heavy Anti-Armor guns. Primitive Long-Range anti-armor equipment. Self-Propelled Carriages for all field guns and MLRS. Early Long-Range Rockets.

Aircraft and Countermeasures:
Baseline: None, perhaps a few private experimenters with gliders or hot air balloons.
1902: Up to Historical 1906 aircraft and countermeasures
1906: Up to Historical 1910 aircraft and countermeasures
1910: Up to Historical 1914 aircraft and countermeasures
1914: Up to Historical 1916 aircraft and countermeasures
1918: Up to Historical 1919 aircraft and countermeasures
1922: Up to Historical 1924 aircraft and countermeasures
1926: Up to Historical 1929 aircraft and countermeasures
1930: Up to Historical 1933 aircraft and countermeasures
1934: Up to Historical 1937 aircraft and countermeasures
1938: Up to Historical 1940 aircraft and countermeasures
1942: Up to Historical 1944 aircraft and countermeasures
1946: Up to Historical 1948 aircraft and countermeasures

Amphibious Technology:
Baseline: Lifeboats and the use of enemy harbors.   
               Can offensively  use 3 deployment point / turn. Can launch 1 amphibious invasion / turn.
1905: Shallow draft barges and shallow draft support ships. 
               Can offensively use 1/6 deployment points / turn.  Can launch 3 amphibious invasions / turn.
1910: X-Lighters, troop transports 
               Can offensively use 1/3 deployment points / turn. Can launch 5 amphibious invasions / turn.
1920: Landing support ships and LST carriers, combat loading. 
               Can offensively use 2/3 Deployment points/ turn. Can launch 7 amphibious invasions / turn.
1928: Mulberry harbors and amphibious vehicles.   
               Can offensively use 100% of deployment points/turn. Can launch 9 amphibious invasions / turn.

Clarifications.
Round numbers.
Offensive: Moving Land Units into a Province that's not yours.  Requires a Deployment point in support.
Amphibious Invasion : doing the above over water.
In war, you can amphibiously invade places that aren't ports. Though there are supply constraints.

Logistics:
Baseline: Horsedrawn limbers, covered waggons, foraging. Use of rail networks
1900: Improved coordination. Experimental use of motorised equipment.
1910: Motorized Headquarters and communication units
1920: Motorized logistics trains
1930: Small-scale battlefield transport
1940: Large-scale battlefield transport

Mechanization:
Baseline: None
1905: Experimental. Automatically granted in 1910. Requires 1900 Logistics
1915: Early Armored Cars. Primitive Tanks
1925: Improved Armored Cars, Early Tanks. Primitive APCs
1935: Advanced Armored Cars, Improved Tanks, Early APCs
1945: Advanced Tanks, Improved APCs

Signals/Intelligence:
Baseline: Wax seals, primitive codes.
1895:  Ability to create simple codes.
1900:  Ability to use and break simple codes, bored crews at wireless stations listening to radio traffic
1905:  Basic encoding protocols, dedicated radio and telegraph line listening stations
1912:  Centralized cryptographic institutions, enforced radio discipline, Room 40
1920:  Primitive mechanical encoding/decoding machines etc.