Respublica Class Large Armored Cruiser

[snip]

Built as a response to large Norse Armored Cruisers, the Respublica was designed to kill what she could catch, and run from what could kill her.

One Ship
--IRS Respublica (Completes 1913/H1)

Respublica Class, Imperial Roman Navy Large Armored Cruiser laid down 1910

Displacement:
   27,250 t light; 28,646 t standard; 29,765 t normal; 30,660 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (643.36 ft / 629.92 ft) x 91.86 ft x (26.25 / 26.93 ft)
   (196.09 m / 192.00 m) x 28.00 m  x (8.00 / 8.21 m)

Armament:
      9 - 13.39" / 340 mm 45.0 cal guns - 1,212.54lbs / 550.00kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1909 Model
     2 x 3-gun mounts on centreline, forward deck forward
      2 raised mounts - superfiring
     1 x 3-gun mount on centreline, forward deck aft
      16 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Breech loading guns in casemate mounts, 1909 Model
     16 x Single mounts on sides, aft evenly spread
      8 raised mounts
      Weight of broadside 12,289 lbs / 5,574 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.45" / 240 mm   379.72 ft / 115.74 m   16.40 ft / 5.00 m
   Ends:   3.94" / 100 mm   250.20 ft / 76.26 m   9.84 ft / 3.00 m
   Upper:   3.94" / 100 mm   379.72 ft / 115.74 m   9.02 ft / 2.75 m
     Main Belt covers 93 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.57" / 40 mm   379.72 ft / 115.74 m   26.25 ft / 8.00 m
   Beam between torpedo bulkheads 83.66 ft / 25.50 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   7.09" / 180 mm      11.0" / 280 mm
   2nd:   3.94" / 100 mm   0.98" / 25 mm      1.97" / 50 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 100,000 shp / 74,600 Kw = 27.45 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 2,014 tons

Complement:
   1,132 - 1,472

Cost:
   £2.631 million / $10.526 million

Distribution of weights at normal displacement:
   Armament: 2,564 tons, 8.6 %
      - Guns: 2,564 tons, 8.6 %
   Armour: 8,719 tons, 29.3 %
      - Belts: 3,569 tons, 12.0 %
      - Torpedo bulkhead: 581 tons, 2.0 %
      - Armament: 2,213 tons, 7.4 %
      - Armour Deck: 2,153 tons, 7.2 %
      - Conning Tower: 204 tons, 0.7 %
   Machinery: 4,132 tons, 13.9 %
   Hull, fittings & equipment: 9,995 tons, 33.6 %
   Fuel, ammunition & stores: 2,515 tons, 8.4 %
   Miscellaneous weights: 1,840 tons, 6.2 %
      - Hull below water: 1,250 tons
      - Hull above water: 100 tons
      - On freeboard deck: 450 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35,367 lbs / 16,042 Kg = 29.5 x 13.4 " / 340 mm shells or 4.9 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 5.7 ft / 1.7 m
   Roll period: 16.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.686 / 0.689
   Length to Beam Ratio: 6.86 : 1
   'Natural speed' for length: 25.10 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.99 ft / 0.91 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   24.72 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   30.28 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      21.92 ft / 6.68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.3 %
      - Above water (accommodation/working, high = better): 151.7 %
   Waterplane Area: 45,795 Square feet or 4,254 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 178 lbs/sq ft or 871 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.50
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Misc Distribution
--Below Water (1250t)
----1033t Electric Drives
----60t 20x530mm Torpedo (5 tubes, two on each side, one on the bow, four torpedos each)
----7t Additional Torpedo handling equipment
----100t Additional Pumps
----50t Construction Reserve
--Above Water (100t)
----30t Flag Facilities
----30t Improved Officer Accommodations
----30t Improved Crew Accommodations
----10t Short-Range Wireless
--On Deck (450t)
----260t 1908 Fire Control
----40t Flag Facilities
----20t Admiralty Accommodations
----50t Long-Range Wireless x2
----20t Short-Range Wireless x2
----65t Additional Stores
----15t Construction Reserve
--Above Deck (100t)
----50t Improved Aquisition Structures
----25t Additional Searchlights
----25t Improved Signaling Equipment

[snip]

After launching in 1913, Respublica receved updated 1912 Fire Control.

Respublica Class, Imperial Roman Navy Large Armored Cruiser laid down 1910

Displacement:
   27,250 t light; 28,646 t standard; 29,765 t normal; 30,660 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (643.36 ft / 629.92 ft) x 91.86 ft x (26.25 / 26.93 ft)
   (196.09 m / 192.00 m) x 28.00 m  x (8.00 / 8.21 m)

Armament:
      9 - 13.39" / 340 mm 45.0 cal guns - 1,212.54lbs / 550.00kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1909 Model
     2 x 3-gun mounts on centreline, forward deck forward
      2 raised mounts - superfiring
     1 x 3-gun mount on centreline, forward deck aft
      16 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Breech loading guns in casemate mounts, 1909 Model
     16 x Single mounts on sides, aft evenly spread
      8 raised mounts
      Weight of broadside 12,289 lbs / 5,574 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.45" / 240 mm   379.72 ft / 115.74 m   16.40 ft / 5.00 m
   Ends:   3.94" / 100 mm   250.20 ft / 76.26 m   9.84 ft / 3.00 m
   Upper:   3.94" / 100 mm   379.72 ft / 115.74 m   9.02 ft / 2.75 m
     Main Belt covers 93 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.57" / 40 mm   379.72 ft / 115.74 m   26.25 ft / 8.00 m
   Beam between torpedo bulkheads 83.66 ft / 25.50 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   7.09" / 180 mm      11.0" / 280 mm
   2nd:   3.94" / 100 mm   0.98" / 25 mm      1.97" / 50 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 100,000 shp / 74,600 Kw = 27.45 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 2,014 tons

Complement:
   1,132 - 1,472

Cost:
   £2.631 million / $10.526 million

Distribution of weights at normal displacement:
   Armament: 2,564 tons, 8.6 %
      - Guns: 2,564 tons, 8.6 %
   Armour: 8,719 tons, 29.3 %
      - Belts: 3,569 tons, 12.0 %
      - Torpedo bulkhead: 581 tons, 2.0 %
      - Armament: 2,213 tons, 7.4 %
      - Armour Deck: 2,153 tons, 7.2 %
      - Conning Tower: 204 tons, 0.7 %
   Machinery: 4,132 tons, 13.9 %
   Hull, fittings & equipment: 9,995 tons, 33.6 %
   Fuel, ammunition & stores: 2,515 tons, 8.4 %
   Miscellaneous weights: 1,840 tons, 6.2 %
      - Hull below water: 1,250 tons
      - Hull above water: 100 tons
      - On freeboard deck: 450 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35,367 lbs / 16,042 Kg = 29.5 x 13.4 " / 340 mm shells or 4.9 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 5.7 ft / 1.7 m
   Roll period: 16.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.686 / 0.689
   Length to Beam Ratio: 6.86 : 1
   'Natural speed' for length: 25.10 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.99 ft / 0.91 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   24.72 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   30.28 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      21.92 ft / 6.68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.3 %
      - Above water (accommodation/working, high = better): 151.7 %
   Waterplane Area: 45,795 Square feet or 4,254 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 178 lbs/sq ft or 871 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.50
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Misc Distribution
--Below Water (1250t)
----1033t Electric Drives
----60t 20x530mm Torpedo (5 tubes, two on each side, one on the bow, four torpedos each)
----7t Additional Torpedo handling equipment
----100t Additional Pumps
----50t Construction Reserve
--Above Water (100t)
----30t Flag Facilities
----30t Improved Officer Accommodations
----30t Improved Crew Accommodations
----10t Short-Range Wireless
--On Deck (450t)
----260t 1912 Fire Control
----40t Flag Facilities
----20t Admiralty Accommodations
----50t Long-Range Wireless x2
----20t Short-Range Wireless x2
----65t Additional Stores
----15t Construction Reserve
--Above Deck (100t)
----50t Improved Aquisition Structures
----25t Additional Searchlights
----25t Improved Signaling Equipment

[snip]

In 1921H1, IRS Respublica was upgraded to 1918 Fire Control.