Cruisers

Kaiser Kirk · August 04, 2017, 11:07:27 PM

Not for Publication

Mus-sag, Parthian Torpedo Boat Carrier laid down 1894
Refurbished 1920, basic refit 1922

# Built : 8
# Active : 1,
# Converted : 5 : 4 converted to Seaplane carriers, 1 converted to an Experimental Carrier
# Lost : 2 : IV boiler explosion, expended as target. VI Mined & Magazine explosion blamed on cordite in Gulf of Kutch.

Quote
Displacement:
   7,494 t light; 7,823 t standard; 8,638 t normal; 9,290 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (464.54 ft / 459.32 ft) x 52.49 ft x (19.69 / 20.94 ft)
   (141.59 m / 140.00 m) x 16.00 m x (6.00 / 6.38 m)

Armament:
8 - 7.09" / 180 mm 40.0 cal guns - 165.35lbs / 75.00kg shells, 200 per gun
     Breech loading guns in casemate mounts, 1899 Model
     8 x Single mounts on sides, evenly spread
12 - 2.36" / 60.0 mm 50.0 cal guns - 7.05lbs / 3.20kg shells, 200 per gun
     Quick firing guns in deck mounts, 1904 Model
     12 x Single mounts on sides amidships
Weight of broadside 1,407 lbs / 638 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   305.12 ft / 93.00 m   9.84 ft / 3.00 m
   Ends:   1.97" / 50 mm   154.17 ft / 46.99 m   8.20 ft / 2.50 m
   Upper:   1.97" / 50 mm   301.84 ft / 92.00 m   8.01 ft / 2.44 m
     Main Belt covers 102 % of normal length

- Hull Bulges:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm     -           -

- Armoured deck - single deck: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.79" / 20 mm Quarter deck: 0.79" / 20 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 11,749 ihp / 8,765 Kw = 19.00 kts
   Range 5,675nm at 10.00 kts
   Bunker at max displacement = 1,467 tons (100% coal)

Complement:
   447 - 582

Cost:
   £0.632 million / $2.527 million

Distribution of weights at normal displacement:
   Armament: 197 tons, 2.3 %
   Armour: 912 tons, 10.6 %
     - Belts: 539 tons, 6.2 %
     - Armament: 33 tons, 0.4 %
     - Armour Deck: 322 tons, 3.7 %
     - Conning Tower: 18 tons, 0.2 %
   Machinery: 2,196 tons, 25.4 %
   Hull, fittings & equipment: 2,267 tons, 26.2 %
   Fuel, ammunition & stores: 1,144 tons, 13.2 %
   Miscellaneous weights: 1,922 tons, 22.2 %
     - Hull below water: 572 tons
     - Hull void weights: 17 tons
     - Hull above water: 280 tons
     - On freeboard deck: 960 tons
     - Above deck: 93 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,062 lbs / 4,111 Kg = 50.9 x 7.1 " / 180 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 2.5 ft / 0.8 m
   Roll period: 13.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.637 / 0.644
   Length to Beam Ratio: 8.75 : 1
   'Natural speed' for length: 21.43 kts
   Power going to wave formation at top speed: 41 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 12.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 24.57 ft / 7.49 m, 24.57 ft / 7.49 m
     - Forward deck:   30.00 %, 16.57 ft / 5.05 m, 16.57 ft / 5.05 m
     - Aft deck:   35.00 %, 16.57 ft / 5.05 m, 16.57 ft / 5.05 m
     - Quarter deck:   15.00 %, 16.57 ft / 5.05 m, 16.57 ft / 5.05 m
     - Average freeboard:      18.17 ft / 5.54 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.5 %
      - Above water (accommodation/working, high = better): 128.9 %
   Waterplane Area: 18,251 Square feet or 1,696 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 81 lbs/sq ft or 394 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.51
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

1920 Refurbishment & 1922 Basic refit :
Misc Wt. :

AD
20t LR Radio
25t 1912 FC

OD
7t CO2 Compressor AC
48t Cranes
640t 8x MTB-D

HAW
200t Fleet Supply for 2,000 tons
32 Fleet support for 160t MTB
280t Berthing for crews of MTBs

HBW
256t - Ammo Stores Torpedo reloads
256t - Fuel for TBs
140t - Torpedo Nets

Once an 8 strong class meant to support night assaults with 64 TBs, or launched behind the battle line to attack during a battle; now a class of 1, frequently used for Ferry or Light Tender services.

In the tradition of HMS Vulcan, this is a Torpedo Boat Carrier named after the 7 headed serpent of Sumerian Legend.

Armed like an early armored cruiser, armored against HE rounds, and faster than most larger ships (historically that is), these were expected to be able to successfully fend off protected cruisers or hurt armored cruisers that caught them.

However the primary role was to convey TB squadrons to new locations. Either for patrol purposes, or to conduct a moonlight raid on opposing shipping lanes, the sudden appearance of torpedo boats was expected to cause problems. Likewise, it was envisioned these vessels could accompany the battle fleet, launch the torpedo boats from behind the battleline, and force the opposing fleet to choose between deploying torpedo nets and slowing- thus giving the Parthians a critical chance to cross the T, or taking evasive maneuvers and disrupting the formation, again allowing the Parthians to concentrate.

Misc Weight :
140t - Torpedo Nets
48t - Support for 480tons of TBs
128t - Torpedo Reloads ( 8TB x 2 torps x 2t = 4 full reserve loads)
256t - Fuel for TBs (4tx 8TB: 32, so 8 trips)

280t - Berthing for Crew of TBs

960t - 8 x 60t 1894 TB

48t - Cranes
25t - Long range radio
20t - 1910 fire control

1904 Refit : 34t
25t - Long range radio
-12 x 45L40
+12 x 60L50 19t
-28 cons resv

1907 refit :20t
20t - +1905 Fire Control
-20t cons resv

1912 Basic Refit : 20t
20t 1910 Fire Control

Kaiser Kirk · August 12, 2017, 08:54:31 PM

PC-1 Shabrang R1920, Parthia Protected Cruiser laid down 1900 (Engine 1920)
Basic refit 1922.

PC - 1 Shabrang
PC - 2 Shabdiz

Quote
Displacement:
5,963 t light; 6,202 t standard; 7,019 t normal; 7,672 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(492.13 ft / 475.72 ft) x 47.57 ft x (21.33 / 22.83 ft)
(150.00 m / 145.00 m) x 14.50 m x (6.50 / 6.96 m)

Armament:
6 - 7.09" / 180 mm 43.0 cal guns - 187.39lbs / 85.00kg shells, 140 per gun
Breech loading guns in deck and hoist mounts, 1913 Model
2 x Single mounts on centreline ends, evenly spread
4 x Single mounts on side ends, evenly spread
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 200 per gun
Anti-air guns in deck and hoist mounts, 1911 Model
2 x Single mounts on sides forward
2 raised mounts
2 x Single mounts on sides amidships
2 raised mounts
8 - 0.59" / 15.0 mm 60.0 cal guns - 0.11lbs / 0.05kg shells, 500 per gun
Machine guns in deck mounts, 1904 Model
4 x Twin mounts on side ends, evenly spread
4 double raised mounts
Weight of broadside 1,222 lbs / 554 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.56" / 65 mm 437.99 ft / 133.50 m 12.01 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 142 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.38" / 35 mm 2.95" / 75 mm
2nd: 0.79" / 20 mm - -
3rd: 0.24" / 6 mm - -

- Protected deck - multiple decks:
For and Aft decks: 2.36" / 60 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.38" / 35 mm

Protective Deck : Laminate 35mm onto existing Protective deck, both citadel and quarterdeck.
Laminations are 80% effective, so this adds
28mm
Forecastle : 25 slopes and crown
Citadel : 118 slopes and 53 crown
quarterdeck : 35mm slopes and crown

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 45,083 shp / 33,632 Kw = 28.25 kts
Range 8,300nm at 14.00 kts
Bunker at max displacement = 1,470 tons

Complement:
383 - 498

Cost:
£0.534 million / $2.134 million

Distribution of weights at normal displacement:
Armament: 292 tons, 4.2 %
- Guns: 292 tons, 4.2 %
Armour: 1,309 tons, 18.6 %
- Belts: 522 tons, 7.4 %
- Armament: 96 tons, 1.4 %
- Armour Deck: 663 tons, 9.5 %
- Conning Tower: 28 tons, 0.4 %
Machinery: 1,576 tons, 22.5 %
Hull, fittings & equipment: 2,045 tons, 29.1 %
Fuel, ammunition & stores: 1,055 tons, 15.0 %
Miscellaneous weights: 741 tons, 10.6 %
- Hull below water: 564 tons
- Hull void weights: 60 tons
- Hull above water: 31 tons
- On freeboard deck: 51 tons
- Above deck: 35 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,671 lbs / 3,479 Kg = 43.1 x 7.1 " / 180 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.509 / 0.520
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 4.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Forward deck: 30.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Aft deck: 62.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Quarter deck: 4.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Average freeboard: 15.12 ft / 4.61 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96.4 %
- Above water (accommodation/working, high = better): 113.5 %
Waterplane Area: 15,203 Square feet or 1,412 Square metres
Displacement factor (Displacement / loading): 113 %
Structure weight / hull surface area: 85 lbs/sq ft or 415 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.48
- Overall: 1.01
Adequate machinery, storage, compartmentation space
Adequate accommodation and workspace room

Misc Wt
5t- Resv

30t - FC - 1918
25t - LR radio
25t - Searchlight tower

5t - Paravanes
36t - 4TT3 21"

6t - CO2 Air Compressor A/C
25t - Enhanced fire suppression

25t - Enhanced Pumps
145t - Torpedo Nets
394t - Turboelectric drive.
15t - Enhanced Hydrophones

Decks :

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

Displacement:
   5,990 t light; 6,196 t standard; 7,019 t normal; 7,677 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 475.72 ft) x 47.57 ft x (21.33 / 22.84 ft)
   (150.00 m / 145.00 m) x 14.50 m x (6.50 / 6.96 m)

Armament:
6 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 120 per gun
     Quick firing guns in deck mounts, 1899 Model
     2 x Single mounts on centreline ends, evenly spread
     4 x Single mounts on sides forward
8 - 2.36" / 60.0 mm 50.0 cal guns - 7.05lbs / 3.20kg shells, 300 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
Weight of broadside 890 lbs / 404 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.56" / 65 mm   437.99 ft / 133.50 m   12.01 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 142 % of normal length

Note : The "Belt" is actually the thickened 90mm slopes of the protective deck

- Hull Bulges:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm        -

- Protected deck - single deck: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.98" / 25 mm Quarter deck: 0.00" / 0 mm

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 18,533 ihp / 13,826 Kw = 22.50 kts
   Range 7,400nm at 10.00 kts
   Bunker at max displacement = 1,481 tons (90% coal)

Complement:
   383 - 498

Cost:
   £0.653 million / $2.614 million

Distribution of weights at normal displacement:
   Armament: 153 tons, 2.2 %
   Armour: 871 tons, 12.4 %
     - Belts: 520 tons, 7.4 %
     - Armament: 48 tons, 0.7 %
     - Armour Deck: 275 tons, 3.9 %
     - Conning Tower: 28 tons, 0.4 %
   Machinery: 2,867 tons, 40.8 %
   Hull, fittings & equipment: 1,797 tons, 25.6 %
   Fuel, ammunition & stores: 1,028 tons, 14.6 %
   Miscellaneous weights: 303 tons, 4.3 %
     - Hull below water: 193 tons
     - Hull void weights: 40 tons
     - On freeboard deck: 30 tons
     - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,130 lbs / 1,873 Kg = 30.1 x 6.5 " / 165 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.50
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 86 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality (Average = 1.00): 1.73

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.509 / 0.520
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.81 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 9.84 ft / 3.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   4.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Forward deck:   30.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Aft deck:   62.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Quarter deck:   4.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Average freeboard:      15.12 ft / 4.61 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 141.3 %
      - Above water (accommodation/working, high = better): 113.5 %
   Waterplane Area: 15,203 Square feet or 1,412 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 73 lbs/sq ft or 356 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.35
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Intended as a Protected Cruiser for the fleet
The vessel is fitted with a protective deck, 90mm on the slopes and 25mm on the flat

Current Misc Weight
Misc Wt
10t- Resv

30t - FC - 1918
25t - LR radio
25t - Searchlight tower

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

1907 refit : 28t
15t + 1905 Fire control
- 8 x 45L45
13t + 8 x 60L50
-5t construction reserve

1911 refit :
Improve FC to 1910

1920 refrubishment,

Completed in 1901, the PC-1 Class was powerful for it's time, but very dated in 1920.
Refurbished in 1920, it was then given a FC refit in 1922.

Since the base hull tech is pre 1900, the comp hull has to stay 1.0 or more.

Protective Deck : Laminate 35mm onto existing Protective deck, both citadel and quarterdeck.
Laminations are 80% effective, so this adds
28mm
Forecastle : 25 slopes and crown
Citadel : 118 slopes and 53 crown
quarterdeck : 35mm slopes and crown

Remove and Plate over submerged tubes

1922 basic FC refit
Basic Refit Misc Weight
30t - FC – 1918

+5t - Paravanes

-5t- Resv

Kaiser Kirk · August 12, 2017, 10:12:17 PM

PC Series-I Parthia Protected Cruiser Series I laid down 1902 (Engine 1920)
Basic Refit 1922

PC - 3 Rakhsh
PC - 4 Nisean

Quote
Displacement:
5,998 t light; 6,307 t standard; 7,090 t normal; 7,716 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 22.73 ft)
(150.00 m / 145.00 m) x 15.00 m x (6.50 / 6.93 m)

Armament:
10 - 7.09" / 180 mm 43.0 cal guns - 187.39lbs / 85.00kg shells, 140 per gun
Breech loading guns in deck and hoist mounts, 1913 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 x Single mounts on sides, evenly spread
2 raised mounts
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 300 per gun
Anti-air guns in deck mounts, 1911 Model
4 x Single mounts on side ends, evenly spread
4 double raised mounts
16 - 0.59" / 15.0 mm 60.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1917 Model
     6 x Twin mounts on sides, evenly spread
      6 raised mounts
     2 x Twin mounts on centreline ends, evenly spread
      2 double raised mounts
Weight of broadside 1,973 lbs / 895 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.56" / 65 mm 428.15 ft / 130.50 m 12.01 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 138 % of normal length

This represents the additional thickness of the PD's slopes

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 1.38" / 35 mm 1.38" / 35 mm
2nd: 0.79" / 20 mm - -
3rd: 0.24" / 6 mm - -

- Protected deck - single deck:
For and Aft decks: 1.57" / 40 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.57" / 40 mm

Reconstruction saw +15mm deck laminated over citadel and quarterdeck
This makes the protective deck armor
at the citadel an effective 37mm on the crown and 102mm on the slopes.

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 50,398 shp / 37,597 Kw = 29.00 kts
Range 7,900nm at 14.00 kts
Bunker at max displacement = 1,409 tons

Complement:
386 - 502

Cost:
£0.618 million / $2.474 million

Distribution of weights at normal displacement:
Armament: 457 tons, 6.4 %
- Guns: 457 tons, 6.4 %
Armour: 1,132 tons, 16.0 %
- Belts: 513 tons, 7.2 %
- Armament: 135 tons, 1.9 %
- Armour Deck: 456 tons, 6.4 %
- Conning Tower: 28 tons, 0.4 %
Machinery: 1,762 tons, 24.9 %
Hull, fittings & equipment: 2,014 tons, 28.4 %
Fuel, ammunition & stores: 1,091 tons, 15.4 %
Miscellaneous weights: 634 tons, 8.9 %
- Hull below water: 466 tons
- Hull void weights: 30 tons
- Hull above water: 6 tons
- On freeboard deck: 36 tons
- Above deck: 96 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,770 lbs / 2,617 Kg = 32.4 x 7.1 " / 180 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 2.1 ft / 0.7 m
Roll period: 14.1 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.96
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.497 / 0.507
Length to Beam Ratio: 9.67 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 5.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Forward deck: 50.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Aft deck: 40.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Quarter deck: 5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Average freeboard: 16.85 ft / 5.14 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109.5 %
- Above water (accommodation/working, high = better): 129.7 %
Waterplane Area: 15,556 Square feet or 1,445 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 84 lbs/sq ft or 409 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 1.59
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

Misc Wt
25t -reserve

46t - FC - 1918
25t - LR Radio
25t - Searchlight tower

5t - Paravanes
36t - 4TT3 21"

6t - CO2 Compressor AC

441t - Turbogenerator
25t - Extra Pumps

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

Displacement:
   5,999 t light; 6,263 t standard; 7,090 t normal; 7,751 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 22.81 ft)
   (150.00 m / 145.00 m) x 15.00 m x (6.50 / 6.95 m)

Armament:
10 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 140 per gun
     Quick firing guns in deck and hoist mounts, 1899 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     6 x Single mounts on sides amidships
      2 raised mounts
12 - 2.36" / 60.0 mm 50.0 cal guns - 7.05lbs / 3.20kg shells, 300 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
     4 x Single mounts on sides amidships
      4 double raised mounts
Weight of broadside 1,474 lbs / 668 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.56" / 65 mm   428.15 ft / 130.50 m   12.01 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 138 % of normal length

The belt armor represents the 90mm slopes of the armored deck

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm        -
   2nd:   0.24" / 6 mm     -           -

- Protected deck - single deck: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 16,970 ihp / 12,659 Kw = 21.95 kts
   Range 7,650nm at 10.00 kts
   Bunker at max displacement = 1,488 tons (90% coal)

Complement:
   386 - 502

Cost:
   £0.702 million / $2.806 million

Distribution of weights at normal displacement:
   Armament: 384 tons, 5.4 %
   Armour: 911 tons, 12.9 %
     - Belts: 511 tons, 7.2 %
     - Armament: 86 tons, 1.2 %
     - Armour Deck: 286 tons, 4.0 %
     - Conning Tower: 28 tons, 0.4 %
   Machinery: 2,546 tons, 35.9 %
   Hull, fittings & equipment: 1,878 tons, 26.5 %
   Fuel, ammunition & stores: 1,091 tons, 15.4 %
   Miscellaneous weights: 280 tons, 3.9 %
     - Hull above water: 160 tons
     - On freeboard deck: 54 tons
     - Above deck: 66 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,812 lbs / 1,729 Kg = 27.8 x 6.5 " / 165 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 89 %
         - Recoil effect (Restricted arc if above 1.00): 0.92
   Seaboat quality (Average = 1.00): 1.78

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.497 / 0.508
   Length to Beam Ratio: 9.67 : 1
   'Natural speed' for length: 21.81 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 9.84 ft / 3.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   5.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Forward deck:   50.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Aft deck:   40.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Quarter deck:   5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Average freeboard:      16.85 ft / 5.14 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 136.4 %
      - Above water (accommodation/working, high = better): 129.7 %
   Waterplane Area: 15,556 Square feet or 1,445 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 77 lbs/sq ft or 377 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.48
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Intended as a Protected Cruiser for the fleet
The vessel is fitted with a protective deck, 90mm on the slopes and 25mm on the flat

25t - Long range radio
30t - 0.5% increased ventilation "Windcatcher" evaporative cooling
24t - Torpedoes 4 xT2 (8)
160t - minedeck on 2nd deck aft, 2 mine rails w/80 mines ea. drop through ports in stern
38t + 1910 fire control
0t - construction reserve

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

1907 refit : 57t
38t + 1905 fire control
- 16x 45L45
19t + 12 x 60L50

1912 basic refit : 38t
38t 1910 Fire Control

1920 recon

Old Engine : 2546
Old Bunker : 1488

New Turboelectric Turbines : 1762
New TurboGenerator : 441
New Bunker : 1409

Replace old 165mm with 180mm
100+357 = 457t guns & mounts
135t - weapon Armor

The old mine deck is removed,
and the weight put towards
a layer of extra deck armor.
+15mm deck laminated over citadel and quarterdeck : +170t

This makes the protective deck armor
at the citadel an effective 37mm on the crown and 102mm on the slopes.

1922 Basic - Fire Control

Kaiser Kirk · August 12, 2017, 10:46:10 PM

PC Series-II Parthia Protected Cruiser laid down 1904, Refurbished 1921
Basic Refit 1922

PC - 5 Kanthaka
PC - 6 Tulpar

Quote

Displacement:
5,933 t light; 6,271 t standard; 7,318 t normal; 8,155 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 23.18 ft)
(150.00 m / 145.00 m) x 15.00 m x (6.50 / 7.07 m)

Armament:
10 - 7.09" / 180 mm 43.0 cal guns - 187.39lbs / 85.00kg shells, 140 per gun
Breech loading guns in deck and hoist mounts, 1913 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 x Single mounts on sides, evenly spread
2 raised mounts
6 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 500 per gun
Anti-air guns in deck and hoist mounts, 1911 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
2 x Single mounts on sides amidships
2 double raised mounts
16 - 0.59" / 15.0 mm 60.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1917 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 2,021 lbs / 917 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.56" / 65 mm 428.15 ft / 130.50 m 12.01 ft / 3.66 m
Ends: Unarmoured

Main Belt covers 138 % of normal length

This represents the slopes of the protective deck

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.56" / 65 mm 1.57" / 40 mm 1.57" / 40 mm
2nd: 0.31" / 8 mm - -
3rd: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 2.56" / 65 mm
Forecastle: 2.56" / 65 mm Quarter deck: 2.56" / 65 mm

This is 25 crown, 90 slopes with a 40mm (+32) laminate over,
for an effective 57 crown, 122 slopes

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 44,884 shp / 33,484 Kw = 28.00 kts
Range 10,610nm at 14.00 kts
Bunker at max displacement = 1,885 tons

Complement:
395 - 514

Cost:
£0.596 million / $2.384 million

Distribution of weights at normal displacement:
Armament: 481 tons, 6.6 %
- Guns: 481 tons, 6.6 %
Armour: 1,454 tons, 19.9 %
- Belts: 513 tons, 7.0 %
- Armament: 157 tons, 2.1 %
- Armour Deck: 755 tons, 10.3 %
- Conning Tower: 29 tons, 0.4 %
Machinery: 1,546 tons, 21.1 %
Hull, fittings & equipment: 1,990 tons, 27.2 %
Fuel, ammunition & stores: 1,385 tons, 18.9 %
Miscellaneous weights: 462 tons, 6.3 %
- Hull below water: 76 tons
- Hull void weights: 60 tons
- Hull above water: 185 tons
- On freeboard deck: 42 tons
- Above deck: 99 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,028 lbs / 3,188 Kg = 39.5 x 7.1 " / 180 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 1.9 ft / 0.6 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.98
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.513 / 0.526
Length to Beam Ratio: 9.67 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 5.00 %, 23.82 ft / 7.26 m, 22.18 ft / 6.76 m
- Forward deck: 32.00 %, 22.18 ft / 6.76 m, 20.54 ft / 6.26 m
- Aft deck: 58.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Quarter deck: 5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Average freeboard: 15.75 ft / 4.80 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.2 %
- Above water (accommodation/working, high = better): 118.3 %
Waterplane Area: 15,785 Square feet or 1,467 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 85 lbs/sq ft or 413 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.41
- Overall: 0.91
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Adequate accommodation and workspace room

Miscellanous weight : 426t
55t construction reserve

49t FC -1918
25t LR radio
25t Searchlight tower (NF)

5t Paravanes
6t CO2 Compressor AC
36t 4TT3 TT 21"

160t - Provisions for 160mines on 2nd deck, aft ports for dropping
25t - Enhanced fire extinguishers

25t - enhanced pumps
15t - Enhanced hydrophones
36t - spare torpedoes

Displacement:
   6,000 t light; 6,270 t standard; 7,318 t normal; 8,156 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 23.18 ft)
   (150.00 m / 145.00 m) x 15.00 m x (6.50 / 7.07 m)

Armament:
10 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 140 per gun
     Quick firing guns in deck and hoist mounts, 1899 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     6 x Single mounts on sides amidships
      2 raised mounts
8 - 2.36" / 60.0 mm 50.0 cal guns - 7.05lbs / 3.20kg shells, 500 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on sides amidships
      4 double raised mounts
Weight of broadside 1,445 lbs / 656 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.56" / 65 mm   428.15 ft / 130.50 m   12.01 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 138 % of normal length

The belt represents the 90mm slopes of the protective deck

- Hull Bulges:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm        -

- Protected deck - single deck: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 26,017 shp / 19,408 Kw = 24.40 kts
   Range 7,600nm at 10.00 kts
   Bunker at max displacement = 1,885 tons (90% coal)

Complement:
   395 - 514

Cost:
   £0.704 million / $2.817 million

Distribution of weights at normal displacement:
   Armament: 378 tons, 5.2 %
   Armour: 910 tons, 12.4 %
     - Belts: 512 tons, 7.0 %
     - Armament: 80 tons, 1.1 %
     - Armour Deck: 290 tons, 4.0 %
     - Conning Tower: 29 tons, 0.4 %
   Machinery: 2,576 tons, 35.2 %
   Hull, fittings & equipment: 1,837 tons, 25.1 %
   Fuel, ammunition & stores: 1,317 tons, 18.0 %
   Miscellaneous weights: 299 tons, 4.1 %
     - Hull void weights: 22 tons
     - Hull above water: 160 tons
     - On freeboard deck: 54 tons
     - Above deck: 63 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,980 lbs / 1,805 Kg = 29.0 x 6.5 " / 165 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.5 ft / 0.8 m
   Roll period: 13.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality (Average = 1.00): 1.40

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.513 / 0.526
   Length to Beam Ratio: 9.67 : 1
   'Natural speed' for length: 21.81 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 9.84 ft / 3.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   5.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Forward deck:   32.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Aft deck:   58.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Quarter deck:   5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Average freeboard:      15.37 ft / 4.69 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 133.4 %
      - Above water (accommodation/working, high = better): 116.1 %
   Waterplane Area: 15,785 Square feet or 1,467 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 77 lbs/sq ft or 377 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.87
      - Longitudinal: 1.27
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Intended as a Protected Cruiser for the fleet
The vessel is fitted with a protective deck, no90mm on the slopes and 25mm on the flat

25t - Long range radio
30t - 0.5% increased ventilation "Windcatcher evaporative cooling
24t - 18" Torpedoes 4 xT2 (8), 4 spare Torps. Refitted from 4x T1 in 1907
160t - minedeck on 2nd deck aft, 2 mine rails w/80 mines ea. drop through ports in stern
38t - 1910 Fire control
22t - construction reserve

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

1907 refit :
38t - 1905 Fire Control
4 - Change from 4x T1 to 4x T2 , Spare torps reduced from 8 to 4.

1912 Basic Refit
38t - 1910 Fire Control

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1921 Refurbishment
Lots.

This included Laminate +40mm (+32mm) on protective deck & slopes

Basic Refit Misc Weight
49t FC -1918
25t LR Radio

+5t Paravanes
-5t Reserve

Kaiser Kirk · August 12, 2017, 11:35:39 PM

Series III, Parthia Protected Cruiser laid down 1906
Basic Refit 1922
Refurbishment 1930

PC - 7
PC - 8

Quote
Podgrasas, Parthia Protected Cruiser Series III laid down 1906

Displacement:
5,990 t light; 6,260 t standard; 6,975 t normal; 7,548 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 22.62 ft)
(150.00 m / 145.00 m) x 15.00 m x (6.50 / 6.90 m)

Armament:
8 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 130 per gun
Quick firing guns in deck and hoist mounts, 1917 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 x Single mounts on side ends, evenly spread
8 - 1.46" / 37.0 mm 70.0 cal guns - 1.72lbs / 0.78kg shells, 900 per gun
Quick firing guns in deck mounts, 1929 Model
2 x 2 row quad mounts on sides, forward deck aft
2 raised mounts
20 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 3,000 per gun
Anti-air guns in deck mounts, 1929 Model
8 x 2-gun mounts on sides, evenly spread
8 raised mounts
2 x 2-gun mounts on centreline ends, evenly spread
2 double raised mounts
Weight of broadside 1,522 lbs / 690 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.56" / 65 mm 428.15 ft / 130.50 m 12.01 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 138 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 1.38" / 35 mm 1.38" / 35 mm
2nd: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 0.98" / 25 mm
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

The vessel is fitted with a protective deck, 90mm on the slopes and 25mm on the flat

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 37,296 shp / 27,823 Kw = 27.00 kts
Range 3,874nm at 14.00 kts
Bunker at max displacement = 1,288 tons

Complement:
381 - 496

Cost:
£0.697 million / $2.790 million

Distribution of weights at normal displacement:
Armament: 416 tons, 6.0 %
- Guns: 416 tons, 6.0 %
Armour: 923 tons, 13.2 %
- Belts: 511 tons, 7.3 %
- Armament: 100 tons, 1.4 %
- Armour Deck: 284 tons, 4.1 %
- Conning Tower: 28 tons, 0.4 %
Machinery: 2,422 tons, 34.7 %
Hull, fittings & equipment: 1,936 tons, 27.8 %
Fuel, ammunition & stores: 985 tons, 14.1 %
Miscellaneous weights: 293 tons, 4.2 %
- Hull below water: 6 tons
- Hull void weights: 29 tons
- Hull above water: 6 tons
- On freeboard deck: 135 tons
- Above deck: 117 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,943 lbs / 1,789 Kg = 22.2 x 7.1 " / 180 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.1 ft / 0.6 m
Roll period: 14.3 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.85
Seaboat quality (Average = 1.00): 1.36

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.489 / 0.499
Length to Beam Ratio: 9.67 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 5.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Forward deck: 56.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
- Aft deck: 34.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Quarter deck: 5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
- Average freeboard: 17.34 ft / 5.29 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 132.4 %
- Above water (accommodation/working, high = better): 134.7 %
Waterplane Area: 15,444 Square feet or 1,435 Square metres
Displacement factor (Displacement / loading): 93 %
Structure weight / hull surface area: 79 lbs/sq ft or 386 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 1.63
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Intended as a Protected Cruiser for the fleet
The vessel is fitted with a protective deck, 90mm on the slopes and 25mm on the flat

Refurbished in 1930

Original :Coal/Oil Steam Turbines.

*Replaced Guns & Gunshields
*Convert to fully oil-fring.
*Eliminate Minelaying deck
*new FMW

Base Cost : 5.999 * 0.2 = 1.1998

Guns : 416
Engines : N/A

Cost $ 0.832, 0.416

Armor : 100
Func MW : 264

Cost : $ 0.364, 0.364

Hull : N/A

NF MW : =
Fuel : 1288
Mag :130

Cost : $ .709

Totals : $3.1048, 0.78

Reserve : 29

AD
42t - FC 1918
25t - Searchlight Tower (NF)
25t - Hulesmeyer
25t - LR Radio

OD
5t - Paravanes
64t - 4TT4 21" 4t
41t - 10% Main Battery Power Assist

20t - Scout Floatplane
5t - Gunpowder CAT

HAW
6t CO2 Compressor AC

HBW
6t Extra Pumps

1922 Refit :

Displacement:
   5,997 t light; 6,260 t standard; 6,975 t normal; 7,548 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 475.72 ft) x 49.21 ft x (21.33 / 22.62 ft)
   (150.00 m / 145.00 m) x 15.00 m x (6.50 / 6.90 m)

Armament:
10 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 140 per gun
     Quick firing guns in deck and hoist mounts, 1899 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     6 x Single mounts on sides amidships
      2 raised mounts
8 - 2.36" / 60.0 mm 50.0 cal guns - 6.98lbs / 3.17kg shells, 500 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on sides amidships
      4 double raised mounts
Weight of broadside 1,445 lbs / 655 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.56" / 65 mm   428.15 ft / 130.50 m   12.01 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 138 % of normal length

The belt represents the thicker 90mm slopes of the protective deck

- Hull Bulges:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm        -

- Protected deck - single deck: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

The vessel is fitted with a protective deck, 90mm on the slopes and 25mm on the flat

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines, Intended as a Protected Cruiser for the fleet
   Direct drive, 2 shafts, 37,296 shp / 27,823 Kw = 27.00 kts
   Range 7,600nm at 10.00 kts
   Bunker at max displacement = 1,288 tons (20% coal)

Complement:
   381 - 496

Cost:
   £0.689 million / $2.755 million

Distribution of weights at normal displacement:
   Armament: 378 tons, 5.4 %
   Armour: 902 tons, 12.9 %
     - Belts: 511 tons, 7.3 %
     - Armament: 80 tons, 1.1 %
     - Armour Deck: 284 tons, 4.1 %
     - Conning Tower: 28 tons, 0.4 %
   Machinery: 2,467 tons, 35.4 %
   Hull, fittings & equipment: 1,951 tons, 28.0 %
   Fuel, ammunition & stores: 978 tons, 14.0 %
   Miscellaneous weights: 299 tons, 4.3 %
     - Hull void weights: 22 tons
     - Hull above water: 160 tons
     - On freeboard deck: 54 tons
     - Above deck: 63 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,883 lbs / 1,761 Kg = 28.3 x 6.5 " / 165 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 13.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.83
   Seaboat quality (Average = 1.00): 1.36

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.489 / 0.499
   Length to Beam Ratio: 9.67 : 1
   'Natural speed' for length: 21.81 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 9.84 ft / 3.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   5.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Forward deck:   56.00 %, 20.54 ft / 6.26 m, 20.54 ft / 6.26 m
     - Aft deck:   34.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Quarter deck:   5.00 %, 12.34 ft / 3.76 m, 12.34 ft / 3.76 m
     - Average freeboard:      17.34 ft / 5.29 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 134.8 %
      - Above water (accommodation/working, high = better): 134.7 %
   Waterplane Area: 15,444 Square feet or 1,435 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 79 lbs/sq ft or 385 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.63
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

38t - 1910 Fire Control
25t - Long Range Radio
30t - 0.5% increased ventilation "Windcatcher"
24t - Torpedoes 4 x T2 ( 8 )
160t - minedeck on 2nd deck aft, 2 mine rails w/80 mines ea. drop through ports in stern
22t - construction reserve remaining

+5.26 Forecastle deck
+3.76 Weather Deck
+1.26 2nd deck, top of main belt, protective deck
-1.24 Bottom of main belt, 1st deck
-5.74 Engineering Deck

1907 Refit : 38t
+ 1905 fire control

1912 Basic Refit :
38t 1910 Fire control

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1918 fleet Refits
Improve FC to 1918
-5 reserve +5 paravanes

Kaiser Kirk · January 01, 2019, 10:31:19 PM

Vayu class, Parthian Cruiser Raider laid down 1911

CR - 1 "Vayu" with 180mm

Two ships with the same "Vayu" hull, but different weaponry.

Quote
Displacement:
   7,496 t light; 7,892 t standard; 8,900 t normal; 9,707 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 485.56 ft) x 50.03 ft x (22.15 / 23.77 ft)
   (150.00 m / 148.00 m) x 15.25 m x (6.75 / 7.24 m)

Armament:
8 - 7.09" / 180 mm 45.0 cal guns - 176.37lbs / 80.00kg shells, 254 per gun
     Breech loading guns in deck mounts, 1899 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     4 x Single mounts on sides forward
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 350 per gun
     Anti-air guns in deck mounts, 1911 Model
     4 x Single mounts on sides forward
      4 double raised mounts
8 - 2.24" / 57.0 mm 70.0 cal guns - 6.61lbs / 3.00kg shells, 200 per gun
     Anti-air guns in deck mounts, 1899 Model
     8 x Single mounts on sides, evenly spread
      8 double raised mounts
Weight of broadside 1,561 lbs / 708 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   388.45 ft / 118.40 m   8.20 ft / 2.50 m
   Ends:   0.98" / 25 mm     97.08 ft / 29.59 m   8.20 ft / 2.50 m
   Upper:   1.97" / 50 mm   388.45 ft / 118.40 m   8.20 ft / 2.50 m
     Main Belt covers 123 % of normal length

- Hull Bulges:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.98" / 25 mm        -
   2nd:   0.31" / 8 mm     -           -

- Armoured deck - single deck: 1.18" / 30 mm For and Aft decks
   Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 70,972 shp / 52,945 Kw = 30.25 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 1,815 tons (30% coal)

Complement:
   457 - 595

Cost:
   £0.750 million / $2.998 million

Distribution of weights at normal displacement:
   Armament: 247 tons, 2.8 %
   Armour: 1,203 tons, 13.5 %
     - Belts: 730 tons, 8.2 %
     - Armament: 78 tons, 0.9 %
     - Armour Deck: 377 tons, 4.2 %
     - Conning Tower: 18 tons, 0.2 %
   Machinery: 2,961 tons, 33.3 %
   Hull, fittings & equipment: 2,393 tons, 26.9 %
   Fuel, ammunition & stores: 1,404 tons, 15.8 %
   Miscellaneous weights: 708 tons, 8.0 %
     - Hull below water: 305 tons
     - Hull void weights: 90 tons
     - Hull above water: 68 tons
     - On freeboard deck: 195 tons
     - Above deck: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,716 lbs / 3,046 Kg = 37.7 x 7.1 " / 180 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 12.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 52 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a round stern
   Block coefficient (normal/deep): 0.579 / 0.588
   Length to Beam Ratio: 9.70 : 1
   'Natural speed' for length: 22.04 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 13.00 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   15.00 %, 24.28 ft / 7.40 m, 22.97 ft / 7.00 m
     - Forward deck:   37.00 %, 22.97 ft / 7.00 m, 21.65 ft / 6.60 m
     - Aft deck:   43.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
     - Quarter deck:   5.00 %, 13.45 ft / 4.10 m, 15.09 ft / 4.60 m
     - Average freeboard:      18.28 ft / 5.57 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 122.0 %
      - Above water (accommodation/working, high = better): 127.4 %
   Waterplane Area: 17,422 Square feet or 1,619 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 82 lbs/sq ft or 401 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.80
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

Designed as a large, fast, long range raider.
Capable of operating at high speeds on just captured merchant coal, her overall top speed is remarkably high.
She can cruise for 45 days at 10 knots, allowing her to operate unfettered from bases.
Featuring a pair of motor torpedo boats, she can launch raids into harbors or up rivers when defenders believe themselves safe.

Miscellaneoous Weight
30t- reserve

AD
25t Fire Control 1918
25t Long range radio
25t - Searchlight tower - NF
25t - Hulesmeyer

OD
5t - Paravanes
160t - 2x MTB-D
35t - 'windcatcher' evaporative cooling

HAW
40t- Marine Quarters

HBW
20t- Brig
8t - tender capacity for 2 MTBs
4 underwater torpedo tubes in stern, located below armored deck.
60t - 30 spare 18 " torpedoes
Additional stores : 245t (~10t day, 21 days base, +29days, 45 days cruise range + days spare)

2/3 of boilers run on oil fuel
1/3 of boilers run on oil sprayed coal, 90% coal, 10% oil (33*90%) for 30% coal fuel

Speed on oil fired boilers, 2/3 power is 27.312
Speed on on coal fired boilers, 1/3power is 22.87

Forecastle above weather deck
Upper belt covers from Weather deck to Armor Deck
Belt Armor covers from Armor deck to 2nd Deck

+6.10 : Forecastle Deck
+3.60 : Weather Deck, Top upper belt
+1.20m Armor Deck, Top main belt
-1.30m : 2nd Deck, bottom main belt
-3.80m : 1st Deck
-6.30m : Bilges
Bilges : -6.3m

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1922 Basic Refit Misc Weight
-7.5mm Mgs
+8x 57L60 : 22.8t total

25t FC – 1918
25t LR Radio
+25t Hulesmeyer
+25t Searchlight Tower

+5t Paravanes
168t : Convert MTB-A to MTB-D handling

New Reserve : 30t

Kaiser Kirk · January 01, 2019, 10:33:50 PM

Same hull as Vayu

CR-3 Vata

Quote
Vata, Parthian Cruiser Raider laid down 1911

Displacement:
7,499 t light; 7,892 t standard; 8,900 t normal; 9,707 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(492.13 ft / 485.56 ft) x 50.03 ft x (22.15 / 23.77 ft)
(150.00 m / 148.00 m) x 15.25 m x (6.75 / 7.24 m)

Armament:
10 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 254 per gun
Quick firing guns in deck mounts, 1899 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 x Single mounts on sides, forward deck aft
2 raised mounts - superfiring
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 350 per gun
Anti-air guns in deck mounts, 1911 Model
4 x Single mounts on sides forward
4 double raised mounts
8 - 2.24" / 57.0 mm 70.0 cal guns - 6.33lbs / 2.87kg shells, 200 per gun
     Anti-air guns in deck mounts, 1917 Model
     4 x Single mounts on side ends, evenly spread
     4 x Single mounts on sides, evenly spread
      4 double raised mounts
Weight of broadside 1,537 lbs / 697 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 388.45 ft / 118.40 m 8.20 ft / 2.50 m
Ends: 0.98" / 25 mm 97.08 ft / 29.59 m 8.20 ft / 2.50 m
Upper: 1.97" / 50 mm 388.45 ft / 118.40 m 8.20 ft / 2.50 m
Main Belt covers 123 % of normal length

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm -
2nd: 0.31" / 8 mm - -

- Armoured deck - single deck: 1.18" / 30 mm For and Aft decks
Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 3 shafts, 70,972 shp / 52,945 Kw = 30.25 kts
Range 12,000nm at 10.00 kts
Bunker at max displacement = 1,815 tons (30% coal)

Complement:
457 - 595

Cost:
£0.747 million / $2.989 million

Distribution of weights at normal displacement:
Armament: 254 tons, 2.8 %
Armour: 1,216 tons, 13.7 %
- Belts: 730 tons, 8.2 %
- Armament: 90 tons, 1.0 %
- Armour Deck: 377 tons, 4.2 %
- Conning Tower: 18 tons, 0.2 %
Machinery: 2,961 tons, 33.3 %
Hull, fittings & equipment: 2,361 tons, 26.5 %
Fuel, ammunition & stores: 1,401 tons, 15.7 %
Miscellaneous weights: 708 tons, 8.0 %
- Hull below water: 305 tons
- Hull void weights: 90 tons
- Hull above water: 68 tons
- On freeboard deck: 195 tons
- Above deck: 50 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,706 lbs / 3,042 Kg = 48.9 x 6.5 " / 165 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 2.8 ft / 0.8 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.30
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a round stern
Block coefficient (normal/deep): 0.579 / 0.588
Length to Beam Ratio: 9.70 : 1
'Natural speed' for length: 22.04 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 13.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 24.28 ft / 7.40 m, 22.97 ft / 7.00 m
- Forward deck: 37.00 %, 22.97 ft / 7.00 m, 21.65 ft / 6.60 m
- Aft deck: 43.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 5.00 %, 13.45 ft / 4.10 m, 15.09 ft / 4.60 m
- Average freeboard: 18.28 ft / 5.57 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 121.7 %
- Above water (accommodation/working, high = better): 127.4 %
Waterplane Area: 17,422 Square feet or 1,619 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.79
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Designed as a large, fast, long range raider.
Capable of operating at high speeds on just captured merchant coal, her overall top speed is remarkably high.
She can cruise for 45 days at 10 knots, allowing her to operate unfettered from bases.
Featuring a pair of motor torpedo boats, she can launch raids into harbors or up rivers when defenders believe themselves safe.

Miscellaneoous Weight
Reserve : 30t

25t Fire Control 1918
25t Long range radio
25t Searchlight tower - NF
25t Hulesmeyer

OD
5t Paravanes
160t - 2x MTB-D
35t - 'windcatcher' evaporative cooling

HAW
40t- Marine Quarters

HBW
20t- Brig
8t - tender capacity for 2 MTBs
4 underwater torpedo tubes in stern, located below armored deck.
60t - 30 spare 18 " torpedoes
245t Additional Stores (~10t day, 21 days base, +29days, 45 days cruise range + days spare)

2/3 of boilers run on oil fuel
1/3 of boilers run on oil sprayed coal, 90% coal, 10% oil (33*90%) for 30% coal fuel

Speed on oil fired boilers, 2/3 power is 27.312
Speed on on coal fired boilers, 1/3power is 22.87

Forecastle above weather deck
Upper belt covers from Weather deck to Armor Deck
Belt Armor covers from Armor deck to 2nd Deck

+6.10 : Forecastle Deck
+3.60 : Weather Deck, Top upper belt
+1.20m Armor Deck, Top main belt
-1.30m : 2nd Deck, bottom main belt
-3.80m : 1st Deck
-6.30m : Bilges
Bilges : -6.3m

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1922 basic refit
Basic Refit Misc Weight
-7.5mm Mgs
+8x 57L60 : 22.8t total

25t FC – 1918
25t LR Radio
+25t Hulesmeyer
+25t Searchlight Tower

+5t Paravanes
168t : Convert MTB-A to MTB-D handling

New Reserve : 30t

Kaiser Kirk · January 01, 2019, 10:46:07 PM

Saka class, Parthian Cruiser Raider laid down 1911
Basic refit 1922

CR-2 "Saka

Two ships with the same "Saka" hull, but different weaponry.

Quote
Saka, Parthian Cruiser Raider laid down 1911

Displacement:
5,999 t light; 6,374 t standard; 7,974 t normal; 9,254 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(482.28 ft / 475.72 ft) x 50.85 ft x (21.33 / 24.00 ft)
(147.00 m / 145.00 m) x 15.50 m x (6.50 / 7.32 m)

Armament:
8 - 7.09" / 180 mm 45.0 cal guns - 176.37lbs / 80.00kg shells, 255 per gun
Breech loading guns in deck and hoist mounts, 1899 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 x Single mounts on sides forward
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 300 per gun
Anti-air guns in deck mounts, 1911 Model
4 x Single mounts on sides forward
4 double raised mounts
4 - 0.30" / 7.5 mm 45.0 cal guns - 0.01lbs / 0.00kg shells, 1,500 per gun
Machine guns in deck mounts, 1899 Model
4 x Single mounts on sides amidships
4 double raised mounts
Weight of broadside 1,508 lbs / 684 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 323.49 ft / 98.60 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 323.49 ft / 98.60 m 6.56 ft / 2.00 m
Main Belt covers 105 % of normal length

90mm Main belt is backed by slope of 35mm protective deck

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.56" / 65 mm 0.98" / 25 mm 2.56" / 65 mm
2nd: 0.39" / 10 mm - -

- Protected deck - single deck: 1.18" / 30 mm For and Aft decks
Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 2.56" / 65 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 3 shafts, 48,108 shp / 35,889 Kw = 28.00 kts
Range 14,000nm at 12.00 kts
Bunker at max displacement = 2,880 tons (30% coal)

Complement:
421 - 548

Cost:
£0.631 million / $2.525 million

Distribution of weights at normal displacement:
Armament: 397 tons, 5.0 %
Armour: 1,145 tons, 14.4 %
- Belts: 677 tons, 8.5 %
- Armament: 89 tons, 1.1 %
- Armour Deck: 358 tons, 4.5 %
- Conning Tower: 22 tons, 0.3 %
Machinery: 2,007 tons, 25.2 %
Hull, fittings & equipment: 2,097 tons, 26.3 %
Fuel, ammunition & stores: 1,975 tons, 24.8 %
Miscellaneous weights: 352 tons, 4.4 %
- Hull below water: 128 tons
- Hull void weights: 60 tons
- Hull above water: 60 tons
- On freeboard deck: 30 tons
- Above deck: 74 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,684 lbs / 3,485 Kg = 43.2 x 7.1 " / 180 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 2.4 ft / 0.7 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.71
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a round stern
Block coefficient (normal/deep): 0.541 / 0.558
Length to Beam Ratio: 9.35 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 23.98 ft / 7.31 m, 22.64 ft / 6.90 m
- Forward deck: 34.00 %, 22.64 ft / 6.90 m, 21.65 ft / 6.60 m
- Aft deck: 33.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 13.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Average freeboard: 18.35 ft / 5.59 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.1 %
- Above water (accommodation/working, high = better): 135.3 %
Waterplane Area: 16,742 Square feet or 1,555 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 79 lbs/sq ft or 386 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 1.73
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Range is 42days / 6 weeks with a 10% reserve.
Regular Stores are 196t. 98t are needed for the additional 2 weeks.

Armor :
Individual gun mounts are protected from HE rounds and light SAP. The 65mm armor is expected to defeat splinters from all shell sizes. The 10t rotating weight of the gunhouses keeps the battery manageable without power assist.

The upper belt is 4.5m high forward, and 2m high aft, meeting the top of the main belt. This gives an average of 3.13m.

The main belt covers from .25m below the edge of the protective deck to +0.5m above the crown of the deck, protecting both against diving shells and plunging shells hitting the deck slope.

The protective deck is 35mm over the citadel, and behind the mainbelt, and drops to 20mm over the propeller shafts - to detonate rounds and prevent direct strikes. 20mm splinter armor is fitted forward.

Miscellaneous weight :
60t : Construction reserve
39t : 1918 Fire Control
25t : Long range radio
30t : "WindCatcher" Evaporative cooling
20t : Brig
40t : Marine barracks
30t : 6 x 18" Torpedo tubes - 2 in bow flat w/8 torps, 2 each beam in stern flat over shafts w/12 torps.
98t : + 2 weeks stores

Decks :

6.35 : 5th Deck,
3.85 : 4th Deck, weather deck : Top of Upper belt.
1.85m : Top of Main belt, bottom of upper belt
1.35: 3rd Deck, crown of protective deck
-1.15 : 2nd Deck, bottom edge of protective deck
1.4m : Bottom of main belt
-3.65 : 1st Deck
-6.15 : Engineering Deck

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1918 Fleet refit :
Improve FC to 1918

Kaiser Kirk · January 01, 2019, 10:47:13 PM

Saka class, Parthian Cruiser Raider laid down 1911

CR-4 "Massagatea"

Two ships with the same "Saka" hull, but different weaponry.

Quote

Displacement:
6,000 t light; 6,374 t standard; 7,974 t normal; 9,254 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(482.28 ft / 475.72 ft) x 50.85 ft x (21.33 / 24.00 ft)
(147.00 m / 145.00 m) x 15.50 m x (6.50 / 7.32 m)

Armament:
10 - 6.50" / 165 mm 45.0 cal guns - 138.89lbs / 63.00kg shells, 258 per gun
Quick firing guns in deck and hoist mounts, 1899 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 x Single mounts on sides, forward deck aft
2 raised mounts - superfiring
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 300 per gun
Anti-air guns in deck mounts, 1911 Model
4 x Single mounts on sides forward
4 double raised mounts
4 - 0.30" / 7.5 mm 45.0 cal guns - 0.01lbs / 0.00kg shells, 1,500 per gun
Machine guns in deck mounts, 1889 Model
4 x Single mounts on sides amidships
4 double raised mounts
Weight of broadside 1,486 lbs / 674 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 323.49 ft / 98.60 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 323.49 ft / 98.60 m 6.56 ft / 2.00 m
Main Belt covers 105 % of normal length

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.56" / 65 mm 0.98" / 25 mm 2.56" / 65 mm
2nd: 0.39" / 10 mm - -

- Protected deck - single deck: 1.18" / 30 mm For and Aft decks
Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 2.56" / 65 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 3 shafts, 48,108 shp / 35,889 Kw = 28.00 kts
Range 14,000nm at 12.00 kts
Bunker at max displacement = 2,880 tons (30% coal)

Complement:
421 - 548

Cost:
£0.626 million / $2.506 million

Distribution of weights at normal displacement:
Armament: 385 tons, 4.8 %
Armour: 1,161 tons, 14.6 %
- Belts: 677 tons, 8.5 %
- Armament: 105 tons, 1.3 %
- Armour Deck: 358 tons, 4.5 %
- Conning Tower: 22 tons, 0.3 %
Machinery: 2,007 tons, 25.2 %
Hull, fittings & equipment: 2,095 tons, 26.3 %
Fuel, ammunition & stores: 1,975 tons, 24.8 %
Miscellaneous weights: 352 tons, 4.4 %
- Hull below water: 128 tons
- Hull void weights: 60 tons
- Hull above water: 60 tons
- On freeboard deck: 30 tons
- Above deck: 74 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,683 lbs / 3,485 Kg = 56.1 x 6.5 " / 165 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.74
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a round stern
Block coefficient (normal/deep): 0.541 / 0.558
Length to Beam Ratio: 9.35 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 23.98 ft / 7.31 m, 22.64 ft / 6.90 m
- Forward deck: 34.00 %, 22.64 ft / 6.90 m, 21.65 ft / 6.60 m
- Aft deck: 33.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 13.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Average freeboard: 18.35 ft / 5.59 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.6 %
- Above water (accommodation/working, high = better): 135.3 %
Waterplane Area: 16,742 Square feet or 1,555 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 79 lbs/sq ft or 384 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 1.71
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Range is 42days / 6 weeks with a 10% reserve.
Regular Stores are 196t. 98t are needed for the additional 2 weeks.

Armor :
Individual gun mounts are protected from HE rounds and light SAP. The 65mm armor is expected to defeat splinters from all shell sizes. The 10t rotating weight of the gunhouses keeps the battery manageable without power assist.

The upper belt is 4.5m high forward, and 2m high aft, meeting the top of the main belt. This gives an average of 3.13m.

The main belt covers from .25m below the edge of the protective deck to +0.5m above the crown of the deck, protecting both against diving shells and plunging shells hitting the deck slope.

The protective deck is 35mm over the citadel, and behind the mainbelt, and drops to 20mm over the propeller shafts - to detonate rounds and prevent direct strikes. 20mm splinter armor is fitted forward.

Miscellaneous weight :
60t : Construction reserve
39t : 1918 Fire Control
25t : Long range radio
30t : "WindCatcher" Evaporative cooling
20t : Brig
40t : Marine barracks
30t : 6 x 18" Torpedo tubes - 2 in bow flat w/8 torps, 2 each beam in stern flat over shafts w/12 torps.
98t : + 2 weeks stores

Decks :

6.35 : 5th Deck,
3.85 : 4th Deck, weather deck : Top of Upper belt.
1.85m : Top of Main belt, bottom of upper belt
1.35: 3rd Deck, crown of protective deck
-1.15 : 2nd Deck, bottom edge of protective deck
1.4m : Bottom of main belt
-3.65 : 1st Deck
-6.15 : Engineering Deck

1913-1914 fleet refits :
Improve FC to 1912: Primitive FC computers -14km

1918 Fleet refits :
Improve FC to 1918

Kaiser Kirk · February 14, 2021, 06:20:54 PM

1913 Maelstrom class
1929 Basic AA Refit

CS- 6
CS - 7
CS - 8
CS - 9
CS - 10
CS - 11
CS - 12
CS - 13

Quote
SC-6 Maelstrom, Parthian Cruiser laid down 1913

Displacement:
4,972 t light; 5,244 t standard; 5,962 t normal; 6,536 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(424.87 ft / 419.95 ft) x 41.99 ft x (20.51 / 22.10 ft)
(129.50 m / 128.00 m) x 12.80 m x (6.25 / 6.74 m)

Armament:
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 173 per gun
Quick firing guns in deck and hoist mounts, 1912 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 173 per gun
Quick firing guns in casemate mounts, 1912 Model
4 x Single mounts on side ends, evenly spread
2 hull mounts in casemates- Limited use in heavy seas
4 - 3.54" / 90.0 mm 54.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck mounts, 1929 Model
4 x Single mounts on sides, evenly spread
12 - 1.18" / 30.0 mm 80.0 cal guns - 0.95lbs / 0.43kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1929 Model
4 x 2-gun mounts on sides, forward deck aft
4 raised mounts
2 x 2-gun mounts on centreline ends, evenly spread
2 double raised mounts
12 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 5,000 per gun
Anti-air guns in deck mounts, 1929 Model
6 x Twin mounts on sides, evenly spread
6 double raised mounts
Weight of broadside 1,260 lbs / 572 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 335.96 ft / 102.40 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 123 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.57" / 40 mm 3.94" / 100 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.31" / 8 mm - -
4th: 0.31" / 8 mm - -
5th: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.57" / 40 mm
Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 3.94" / 100 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 49,527 shp / 36,947 Kw = 29.00 kts
Range 8,800nm at 12.00 kts
Bunker at max displacement = 1,291 tons

Complement:
338 - 440

Cost:
£0.574 million / $2.297 million

Distribution of weights at normal displacement:
Armament: 252 tons, 4.2 %
- Guns: 252 tons, 4.2 %
Armour: 993 tons, 16.7 %
- Belts: 519 tons, 8.7 %
- Armament: 87 tons, 1.5 %
- Armour Deck: 359 tons, 6.0 %
- Conning Tower: 28 tons, 0.5 %
Machinery: 1,941 tons, 32.6 %
Hull, fittings & equipment: 1,601 tons, 26.9 %
Fuel, ammunition & stores: 989 tons, 16.6 %
Miscellaneous weights: 185 tons, 3.1 %
- Hull void weights: 37 tons
- Hull above water: 10 tons
- On freeboard deck: 37 tons
- Above deck: 101 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,188 lbs / 1,900 Kg = 30.6 x 6.5 " / 165 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.8 ft / 0.6 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.81
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.577 / 0.587
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 20.73 ft / 6.32 m, 19.09 ft / 5.82 m
- Forward deck: 45.00 %, 19.09 ft / 5.82 m, 17.45 ft / 5.32 m
- Aft deck: 35.00 %, 17.45 ft / 5.32 m, 17.45 ft / 5.32 m
- Quarter deck: 8.00 %, 17.45 ft / 5.32 m, 19.09 ft / 5.82 m
- Average freeboard: 18.16 ft / 5.54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 119.9 %
- Above water (accommodation/working, high = better): 127.4 %
Waterplane Area: 12,624 Square feet or 1,173 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 69 lbs/sq ft or 336 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 2.61
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

The "G" Type follows on the more heavily armored "F".
while moving the armor deck down to protective deck level.
This in turn means there is a 40mm slope behind the main belt.

The foreward doublestacked casements are moved downwards, increasing stability.
The fact the lower guns are unusable in a heavy seaway is deemed acceptable, as combat in those situations is expected to be rare,
and the vessel is unlikely to be called on to stop a torpedo attack in heavy seas.

Range :

1291t max oil
989 : 21days steaming +10%
302 : 5.6hrs at 29knts

1929 Basic AA Refit.

Post Refit Misc Wt ;

Misc Wt
37t - void construction reserve

AD
26t- FC-1918
25t- LR radio
0t - SR radio
25t - Hulesmeyer Prox detector
25t - Searchlight tower amidships (NF)

OD
5t - Paravanes
32t 2T4 21" 4t

HABW
10t Compressor A/C

Maelstrom , Parthian Cruiser laid down 1913

Displacement:
4,998 t light; 5,244 t standard; 5,962 t normal; 6,536 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(424.87 ft / 419.95 ft) x 41.99 ft x (20.51 / 22.10 ft)
(129.50 m / 128.00 m) x 12.80 m x (6.25 / 6.74 m)

Armament:
4 - 6.50" / 165 mm 45.0 cal guns - 138.23lbs / 62.70kg shells, 180 per gun
Quick firing guns in deck and hoist mounts, 1904 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 - 6.50" / 165 mm 45.0 cal guns - 138.23lbs / 62.70kg shells, 180 per gun
Quick firing guns in casemate mounts, 1904 Model
4 x Single mounts on side ends, evenly spread
2 hull mounts in casemates- Limited use in heavy seas
8 - 0.59" / 15.0 mm 74.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1899 Model
4 x Twin mounts on side ends, evenly spread
4 double raised mounts
4 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 250 per gun
Anti-air guns in deck mounts, 1910 Model
4 x Single mounts on side ends, evenly spread
4 double raised mounts
Weight of broadside 1,204 lbs / 546 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 335.96 ft / 102.40 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 123 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.57" / 40 mm 3.94" / 100 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.31" / 8 mm - -
4th: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.57" / 40 mm
Forecastle: 0.79" / 20 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 3.94" / 100 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 49,527 shp / 36,947 Kw = 29.00 kts
Range 8,800nm at 12.00 kts
Bunker at max displacement = 1,291 tons

Complement:
338 - 440

Cost:
£0.578 million / $2.314 million

Distribution of weights at normal displacement:
Armament: 260 tons, 4.4 %
- Guns: 260 tons, 4.4 %
Armour: 991 tons, 16.6 %
- Belts: 519 tons, 8.7 %
- Armament: 85 tons, 1.4 %
- Armour Deck: 359 tons, 6.0 %
- Conning Tower: 28 tons, 0.5 %
Machinery: 1,941 tons, 32.6 %
Hull, fittings & equipment: 1,599 tons, 26.8 %
Fuel, ammunition & stores: 963 tons, 16.2 %
Miscellaneous weights: 208 tons, 3.5 %
- Hull below water: 10 tons
- Hull void weights: 50 tons
- On freeboard deck: 97 tons
- Above deck: 51 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,194 lbs / 1,902 Kg = 30.6 x 6.5 " / 165 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.8 ft / 0.6 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.80
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.577 / 0.587
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 20.73 ft / 6.32 m, 19.09 ft / 5.82 m
- Forward deck: 45.00 %, 19.09 ft / 5.82 m, 17.45 ft / 5.32 m
- Aft deck: 35.00 %, 17.45 ft / 5.32 m, 17.45 ft / 5.32 m
- Quarter deck: 8.00 %, 17.45 ft / 5.32 m, 19.09 ft / 5.82 m
- Average freeboard: 18.16 ft / 5.54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 119.8 %
- Above water (accommodation/working, high = better): 127.4 %
Waterplane Area: 12,624 Square feet or 1,173 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 69 lbs/sq ft or 336 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 2.60
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

Misc Wt :
50 - void Construction Reserve

26 AD- 1918 fire control
25 AD - Long range radio

25 OD - Hulsmeyer
25 OD - War Tuba
25 OD - Searchlight tower amidships
12 - 2t2 Torpedoes (4x3t)
10 - C02 compresser A/C

Decks :
+5.32m 4th deck
+2.88m 3rd deck
+1.5m Top main belt, .
+0.44m 2nd deck, 40mm Protective armor deck Crown.
-1.5m Bottom Main belt
-2m 1st Deck, bottom of protective deck slope
-5.44m Engineering Deck, Stores
-5.82m Double bottom

1922 Basic Fleet Refits
1918 Fire control

Kaiser Kirk · February 14, 2021, 06:22:08 PM

1915 Ranger class
1929 Basic AA Refit

SC - 14
SC - 15
SC - 16
SC - 17

Quote
SC-14 Ranger, Parthian Cruiser laid down 1915

Displacement:
4,964 t light; 5,249 t standard; 5,962 t normal; 6,532 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(424.87 ft / 419.95 ft) x 41.99 ft x (20.51 / 22.09 ft)
(129.50 m / 128.00 m) x 12.80 m x (6.25 / 6.73 m)

Armament:
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 180 per gun
Quick firing guns in deck and hoist mounts, 1915 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 180 per gun
Quick firing guns in casemate mounts, 1915 Model
4 x Single mounts on side ends, evenly spread
2 hull mounts in casemates- Limited use in heavy seas
8 - 3.54" / 90.0 mm 54.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck mounts, 1929 Model
4 x 2-gun mounts on sides, evenly spread
12 - 1.18" / 30.0 mm 80.0 cal guns - 0.95lbs / 0.43kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1929 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
2 x 2-gun mounts on centreline ends, evenly spread
2 double raised mounts
16 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 500 per gun
Anti-air guns in deck mounts, 1929 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 1,359 lbs / 616 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.33" / 110 mm 335.96 ft / 102.40 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 123 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.57" / 40 mm 3.94" / 100 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.31" / 8 mm - -
4th: 0.31" / 8 mm - -
5th: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.57" / 40 mm
Forecastle: 0.79" / 20 mm Quarter deck: 1.38" / 35 mm

- Conning towers: Forward 4.33" / 110 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 49,527 shp / 36,947 Kw = 29.00 kts
Range 9,500nm at 12.00 kts
Bunker at max displacement = 1,283 tons

Complement:
338 - 440

Cost:
£0.761 million / $3.043 million

Distribution of weights at normal displacement:
Armament: 274 tons, 4.6 %
- Guns: 274 tons, 4.6 %
Armour: 1,051 tons, 17.6 %
- Belts: 571 tons, 9.6 %
- Armament: 88 tons, 1.5 %
- Armour Deck: 361 tons, 6.1 %
- Conning Tower: 31 tons, 0.5 %
Machinery: 1,876 tons, 31.5 %
Hull, fittings & equipment: 1,597 tons, 26.8 %
Fuel, ammunition & stores: 998 tons, 16.7 %
Miscellaneous weights: 166 tons, 2.8 %
- Hull below water: 10 tons
- Hull void weights: 6 tons
- Hull above water: 10 tons
- On freeboard deck: 37 tons
- Above deck: 103 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,326 lbs / 1,962 Kg = 31.6 x 6.5 " / 165 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.8 ft / 0.5 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.86
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.577 / 0.587
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 20.73 ft / 6.32 m, 19.09 ft / 5.82 m
- Forward deck: 45.00 %, 19.09 ft / 5.82 m, 17.45 ft / 5.32 m
- Aft deck: 35.00 %, 17.45 ft / 5.32 m, 17.45 ft / 5.32 m
- Quarter deck: 8.00 %, 17.45 ft / 5.32 m, 19.09 ft / 5.82 m
- Average freeboard: 18.16 ft / 5.54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 117.7 %
- Above water (accommodation/working, high = better): 127.4 %
Waterplane Area: 12,624 Square feet or 1,173 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 2.63
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

The "H" is a 1915 follow on to the G.
Somewhat more efficient machinery, and the new 165L43 gun.
The quarterdeck was made resistant to 210mm splinters,
and the belt & conning tower thickened to 110mm.
With the protective deck behind this is expected to be adequate.

The forward doublestacked casements are moved downwards, increasing stability.
The fact the lower guns are unusable in a heavy seaway is deemed acceptable, as combat in those situations is expected to be rare,
and the vessel is unlikely to be called on to stop a torpedo attack in heavy seas.

Range :

1291t max oil
989 : 21days steaming +10%
302 : 5.6hrs at 29knts

1929 Basic AA Refit.
The refit is similar to the Maelstrom class, a near sister.
The Rangers were built with the newer 165 to start, so that is unchanged.

Misc Wt :
6 - void Construction Reserve

AD
28t- 1918 fire control
25t - Long range radio
25t - Hulsmeyer
25t - Searchlight tower amidships (NF)

OD
5t - Paravanes
32 - 4TT2 21" Torpedoes 4t

HAW
10 - C02 compressor A/C

HBW
10 BD- extra pumps

Ranger, Parthian Cruiser laid down 1915

Displacement:
5,000 t light; 5,249 t standard; 5,962 t normal; 6,532 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(424.87 ft / 419.95 ft) x 41.99 ft x (20.51 / 22.09 ft)
(129.50 m / 128.00 m) x 12.80 m x (6.25 / 6.73 m)

Armament:
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 180 per gun
Quick firing guns in deck and hoist mounts, 1915 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 - 6.50" / 165 mm 43.0 cal guns - 143.30lbs / 65.00kg shells, 180 per gun
Quick firing guns in casemate mounts, 1915 Model
4 x Single mounts on side ends, evenly spread
2 hull mounts in casemates- Limited use in heavy seas
8 - 0.59" / 15.0 mm 74.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1915 Model
4 x Twin mounts on side ends, evenly spread
4 double raised mounts
4 - 3.54" / 90.0 mm 50.0 cal guns - 23.55lbs / 10.68kg shells, 250 per gun
Anti-air guns in deck mounts, 1915 Model
4 x Single mounts on side ends, evenly spread
4 double raised mounts
Weight of broadside 1,241 lbs / 563 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.33" / 110 mm 335.96 ft / 102.40 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 123 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.57" / 40 mm 3.94" / 100 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.31" / 8 mm - -
4th: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.57" / 40 mm
Forecastle: 0.79" / 20 mm Quarter deck: 1.38" / 35 mm

- Conning towers: Forward 4.33" / 110 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 49,527 shp / 36,947 Kw = 29.00 kts
Range 9,500nm at 12.00 kts
Bunker at max displacement = 1,283 tons

Complement:
338 - 440

Cost:
£0.750 million / $2.999 million

Distribution of weights at normal displacement:
Armament: 242 tons, 4.1 %
- Guns: 242 tons, 4.1 %
Armour: 1,048 tons, 17.6 %
- Belts: 571 tons, 9.6 %
- Armament: 85 tons, 1.4 %
- Armour Deck: 361 tons, 6.1 %
- Conning Tower: 31 tons, 0.5 %
Machinery: 1,876 tons, 31.5 %
Hull, fittings & equipment: 1,621 tons, 27.2 %
Fuel, ammunition & stores: 962 tons, 16.1 %
Miscellaneous weights: 213 tons, 3.6 %
- Hull below water: 10 tons
- Hull void weights: 50 tons
- On freeboard deck: 103 tons
- Above deck: 50 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,501 lbs / 2,042 Kg = 32.8 x 6.5 " / 165 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.8 ft / 0.5 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.84
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.577 / 0.587
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 20.73 ft / 6.32 m, 19.09 ft / 5.82 m
- Forward deck: 45.00 %, 19.09 ft / 5.82 m, 17.45 ft / 5.32 m
- Aft deck: 35.00 %, 17.45 ft / 5.32 m, 17.45 ft / 5.32 m
- Quarter deck: 8.00 %, 17.45 ft / 5.32 m, 19.09 ft / 5.82 m
- Average freeboard: 18.16 ft / 5.54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115.6 %
- Above water (accommodation/working, high = better): 127.4 %
Waterplane Area: 12,624 Square feet or 1,173 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 2.62
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

Misc Wt :
70 - void Construction Reserve

25 AD- 1918 fire control
25 AD - Long range radio

25 OD - Hulsmeyer
25 OD - War Tuba
25 OD - Searchlight tower amidships
18 - 2t2 Torpedoes (4x3t)
10 - CO2 compressor A/C

10 BD- extra pumps

Decks :
+5.32m 4th deck
+2.88m 3rd deck
+1.5m Top main belt, .
+0.44m 2nd deck, 40mm Protective armor deck Crown.
-1.5m Bottom Main belt
-2m 1st Deck, bottom of protective deck slope
-5.44m Engineering Deck, Stores
-5.82m Double bottom

Kaiser Kirk · March 06, 2022, 12:41:34 PM

Moulek class Parthian Cruiser laid down 1921
Basic AA Refit 1930
C - 21 Moulek
C - 22 Pouseki

Quote
Moulek, Pouseki, Parthian Cruiser laid down 1921

Displacement:
5,986 t light; 6,347 t standard; 7,346 t normal; 8,145 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(523.33 ft / 516.73 ft) x 50.03 ft x (20.51 / 22.15 ft)
(159.51 m / 157.50 m) x 15.25 m x (6.25 / 6.75 m)

Armament:
8 - 7.09" / 180 mm 43.0 cal guns - 187.39lbs / 85.00kg shells, 200 per gun
Breech loading guns in deck and hoist mounts, 1921 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 x Single mounts on side ends, evenly spread
4 - 3.54" / 90.0 mm 54.0 cal guns - 24.25lbs / 11.00kg shells, 500 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
2 x 2-gun mounts on centreline ends, evenly spread
2 double raised mounts
16 - 1.46" / 37.0 mm 70.0 cal guns - 1.72lbs / 0.78kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1929 Model
4 x 2 row quad mounts on side ends, evenly spread
4 raised mounts
16 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1929 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 1,631 lbs / 740 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 356.56 ft / 108.68 m 11.48 ft / 3.50 m
Ends: Unarmoured
Main Belt covers 106 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.56" / 65 mm 1.77" / 45 mm 1.77" / 45 mm
2nd: 0.31" / 8 mm - -
3rd: 0.31" / 8 mm - -
4th: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.77" / 45 mm
Forecastle: 1.38" / 35 mm Quarter deck: 1.77" / 45 mm

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 56,227 shp / 41,945 Kw = 30.00 kts
Range 10,024nm at 14.00 kts
Bunker at max displacement = 1,798 tons

Complement:
396 - 515

Cost:
£1.581 million / $6.323 million

Distribution of weights at normal displacement:
Armament: 396 tons, 5.4 %
- Guns: 396 tons, 5.4 %
Armour: 1,303 tons, 17.7 %
- Belts: 586 tons, 8.0 %
- Armament: 138 tons, 1.9 %
- Armour Deck: 551 tons, 7.5 %
- Conning Tower: 29 tons, 0.4 %
Machinery: 1,936 tons, 26.4 %
Hull, fittings & equipment: 2,153 tons, 29.3 %
Fuel, ammunition & stores: 1,360 tons, 18.5 %
Miscellaneous weights: 197 tons, 2.7 %
- Hull below water: 15 tons
- Hull void weights: 8 tons
- Hull above water: 6 tons
- On freeboard deck: 53 tons
- Above deck: 115 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,498 lbs / 2,947 Kg = 36.5 x 7.1 " / 180 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.67
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.485 / 0.498
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 22.73 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 24.61 ft / 7.50 m, 21.33 ft / 6.50 m
- Forward deck: 23.00 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 46.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Quarter deck: 11.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Average freeboard: 16.91 ft / 5.16 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.2 %
- Above water (accommodation/working, high = better): 129.6 %
Waterplane Area: 16,994 Square feet or 1,579 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 82 lbs/sq ft or 399 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.32
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

The Moulek and Pouseki are local names for the Caspian Horse,
an ancient horse breed depicted from the time of Darius.

The 1/2 and 3/4 mounts are forward of the break,
the 5/6 mounts aft. The torpedoe tubes are between the 5/6 and the break

The rotating weight for the main battery is 59.875 tons each.
This is betwen the 45 and 70t in the Ship Design guidelines.
Likewise the 85kg shell is betwen the 60 and 95kg marks for handloading.

The 90mm AA are mounted high.

Misc. Weight :
8t: Construction Resv

AD
40t : FC 1918
25t : LR Radio
0t : SR Radio
25t : Hulesmeyer Prox Detector
25t : Searchlight tower (NF)

OD
5t : Paravanes
48t : 4 TT4 21" 4t

HAW
6t : CO2 Compressor AC

HBW
15t : Enhanced Hydrophones

Decks :

+6.50 : Forecastle deck
+4.00 : Battery deck/ weather deck
+2.00 : top armor belt
+1.50 : Crown of protective deck
-1.00 : 1st deck, lower edge protective deck.
-1.50 : bottom armor belt
-4.50 : Engineering
-5.32 : Keel, double bottom

Displacement:
6,000 t light; 6,347 t standard; 7,346 t normal; 8,145 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(523.33 ft / 516.73 ft) x 50.03 ft x (20.51 / 22.15 ft)
(159.51 m / 157.50 m) x 15.25 m x (6.25 / 6.75 m)

Armament:
8 - 7.09" / 180 mm 43.0 cal guns - 187.39lbs / 85.00kg shells, 200 per gun
Breech loading guns in deck and hoist mounts, 1921 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
4 x Single mounts on side ends, evenly spread
6 - 3.54" / 90.0 mm 50.0 cal guns - 23.55lbs / 10.68kg shells, 375 per gun
Anti-air guns in deck and hoist mounts, 1921 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
2 x Single mounts on centreline ends, evenly spread
2 double raised mounts
16 - 0.59" / 15.0 mm 60.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Breech loading guns in deck mounts, 1921 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 1,642 lbs / 745 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 356.56 ft / 108.68 m 11.48 ft / 3.50 m
Ends: Unarmoured
Main Belt covers 106 % of normal length

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.56" / 65 mm 1.77" / 45 mm 1.77" / 45 mm
2nd: 0.31" / 8 mm - -

- Protected deck - single deck:
For and Aft decks: 1.77" / 45 mm
Forecastle: 1.38" / 35 mm Quarter deck: 1.77" / 45 mm

- Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 56,227 shp / 41,945 Kw = 30.00 kts
Range 10,024nm at 14.00 kts
Bunker at max displacement = 1,798 tons

Complement:
396 - 515

Cost:
£1.583 million / $6.332 million

Distribution of weights at normal displacement:
Armament: 394 tons, 5.4 %
- Guns: 394 tons, 5.4 %
Armour: 1,300 tons, 17.7 %
- Belts: 586 tons, 8.0 %
- Armament: 135 tons, 1.8 %
- Armour Deck: 551 tons, 7.5 %
- Conning Tower: 29 tons, 0.4 %
Machinery: 1,936 tons, 26.4 %
Hull, fittings & equipment: 2,162 tons, 29.4 %
Fuel, ammunition & stores: 1,347 tons, 18.3 %
Miscellaneous weights: 207 tons, 2.8 %
- Hull below water: 15 tons
- Hull void weights: 55 tons
- Hull above water: 6 tons
- On freeboard deck: 41 tons
- Above deck: 90 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,538 lbs / 2,965 Kg = 36.7 x 7.1 " / 180 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.69
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.485 / 0.498
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 22.73 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 24.61 ft / 7.50 m, 21.33 ft / 6.50 m
- Forward deck: 23.00 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
- Aft deck: 46.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Quarter deck: 11.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
- Average freeboard: 16.91 ft / 5.16 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.0 %
- Above water (accommodation/working, high = better): 129.6 %
Waterplane Area: 16,994 Square feet or 1,579 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.31
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

Misc. Weight :
35t: Construction Resv

25t : LR Radio
40t : FC 1918
25t : Searchlight tower (NF)

36t : 4T3 21" TT
5t : Paravanes

6t : CO2 Compressor AC
15t : Enhanced Hydrophones

Decks :

+6.50 : Forecastle deck
+4.00 : Battery deck/ weather deck
+2.00 : top armor belt
+1.50 : Crown of protective deck
-1.00 : 1st deck, lower edge protective deck.
-1.50 : bottom armor belt
-4.50 : Engineering
-5.32 : Keel, double bottom

Kaiser Kirk · September 18, 2023, 01:14:22 AM

Royal Nissean XII, Parthian Cruiser laid down 1923
Basic AA Refit 1929.5

C - 23
C - 24
C - 25
C - 26
C - 27
C - 28

Quote
Royal Nissean XIIA, Parthian Cruiser laid down 1923

Displacement:
7,987 t light; 8,570 t standard; 9,502 t normal; 10,247 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(553.48 ft / 547.90 ft) x 57.41 ft x (22.64 / 23.92 ft)
(168.70 m / 167.00 m) x 17.50 m x (6.90 / 7.29 m)

Armament:
12 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 190 per gun
Breech loading guns in deck and hoist mounts, 1923 Model
6 x 2-gun mounts on centreline, evenly spread
3 raised mounts
12 - 4.72" / 120 mm 43.0 cal guns - 55.12lbs / 25.00kg shells, 160 per gun
Quick firing guns in casemate mounts, 1923 Model
12 x Single mounts on side ends, evenly spread
12 hull mounts in casemates- Limited use in heavy seas
8 - 3.54" / 90.0 mm 54.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
4 x 2-gun mounts on side ends, evenly spread
24 - 1.46" / 37.0 mm 70.0 cal guns - 1.72lbs / 0.78kg shells, 1,500 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
4 x 2 row quad mounts on side ends, evenly spread
4 raised mounts
2 x 2 row quad mounts on sides forward
2 double raised mounts
16 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 5,000 per gun
Machine guns in deck mounts, 1929 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 3,152 lbs / 1,430 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.92" / 125 mm 372.57 ft / 113.56 m 10.40 ft / 3.17 m
Ends: Unarmoured
Main Belt covers 105 % of normal length
Main Belt inclined -12.00 degrees (positive = in)

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.91" / 150 mm 1.97" / 50 mm 5.12" / 130 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.59" / 15 mm - -
4th: 0.31" / 8 mm 0.31" / 8 mm 0.31" / 8 mm
5th: 0.31" / 8 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.97" / 50 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 4.92" / 125 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 64,503 shp / 48,120 Kw = 30.00 kts
Range 8,100nm at 14.00 kts
Bunker at max displacement = 1,678 tons

Complement:
480 - 625

Cost:
£2.502 million / $10.009 million

Distribution of weights at normal displacement:
Armament: 806 tons, 8.5 %
- Guns: 806 tons, 8.5 %
Armour: 1,762 tons, 18.5 %
- Belts: 776 tons, 8.2 %
- Armament: 224 tons, 2.4 %
- Armour Deck: 714 tons, 7.5 %
- Conning Tower: 48 tons, 0.5 %
Machinery: 2,156 tons, 22.7 %
Hull, fittings & equipment: 2,812 tons, 29.6 %
Fuel, ammunition & stores: 1,515 tons, 15.9 %
Miscellaneous weights: 451 tons, 4.7 %
- Hull below water: 40 tons
- Hull void weights: 45 tons
- Hull above water: 33 tons
- On freeboard deck: 168 tons
- Above deck: 165 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,280 lbs / 3,756 Kg = 46.5 x 7.1 " / 180 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.6 ft / 0.8 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.467 / 0.477
Length to Beam Ratio: 9.54 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 26.25 ft / 8.00 m, 23.79 ft / 7.25 m
- Forward deck: 20.00 %, 23.79 ft / 7.25 m, 21.33 ft / 6.50 m
- Aft deck: 48.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 12.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Average freeboard: 17.54 ft / 5.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 103.5 %
- Above water (accommodation/working, high = better): 130.3 %
Waterplane Area: 20,354 Square feet or 1,891 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 1.39
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

Royal Nissean XII 1929 AA Refit

Having tried two variations of the three-gun mount & hoist, neither are satisfactory.
So the Parthians have reworked with just two-gun 180 M&H with powered assists & ramming to maintain ROF
and training.

1 7
(d) (s)
A (B) [c] P(Q) [w] (X) (Y)
(e) (s)
2 8

The reversion to casements is not viewed as a problem, Torpedo attack is difficult in high seas, both because the TBs are slowed, and because the torpedoes tend to breach the wave troughs.

The belt is facehardened 125mm, outsloped 15 degrees
and capped by the armor deck at +1.7m
The belt descends to -1.7m below water, for a total height of 3.4m.

3.4m/cos(15) = 3.519 = 3.52m

The Parthians expect floatplanes to taxi up to the fantail, so aircraft handling facilities are placed on the stern.

Misc Wt :

Reserve - 45t

AD
80t - Fire Control 1918
25t - LR Radio
10t - SR Radio -dedicated AC command center
0t - SR Radio
25t - Searchlight tower (NF)
25t - Hulesmeyer

OD
5t - Paravanes
32t - 2TT4 21" 4t
55t - 2x 20+5 - Fighter Float + Gunpwdr CAT on stern
76t - 10% rotating wt Power Assist for 180L47

HAW
8t - CO2 Compresser A/C
25t - Enhanced Fire Ext.

HBW
15t - Enhanced Hydrophones
25t - Extra Pumps.

Decks
+6.5 Forecastle Deck
+4.1 Weather Deck
+1.6 Battery Deck Top belt, Armored Deck
-1.00 Deck
-1.5 Bottom main belt
-3.50
-5.80 Engineering
-6.9 Keel, double bottom

Displacement:
8,000 t light; 8,555 t standard; 9,477 t normal; 10,215 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(542.56 ft / 538.06 ft) x 57.94 ft x (22.64 / 23.91 ft)
(165.37 m / 164.00 m) x 17.66 m x (6.90 / 7.29 m)

Armament:
12 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 180 per gun
Breech loading guns in deck and hoist mounts, 1923 Model
6 x 2-gun mounts on centreline, evenly spread
3 raised mounts
12 - 4.72" / 120 mm 43.0 cal guns - 55.12lbs / 25.00kg shells, 155 per gun
Quick firing guns in casemate mounts, 1923 Model
12 x Single mounts on side ends, evenly spread
12 hull mounts in casemates- Limited use in heavy seas
8 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck and hoist mounts, 1923 Model
4 x 2-gun mounts on side ends, evenly spread
12 - 2.24" / 57.0 mm 60.0 cal guns - 6.61lbs / 3.00kg shells, 800 per gun
Anti-air guns in deck and hoist mounts, 1923 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
2 x 2-gun mounts on centreline, evenly spread
2 double raised mounts
16 - 0.59" / 15.0 mm 70.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1917 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 3,185 lbs / 1,445 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.92" / 125 mm 376.64 ft / 114.80 m 11.55 ft / 3.52 m
Ends: Unarmoured
Main Belt covers 108 % of normal length
Main Belt inclined -15.00 degrees (positive = in)

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 1.77" / 45 mm 4.92" / 125 mm
2nd: 1.38" / 35 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm
4th: 0.31" / 8 mm 0.31" / 8 mm 0.31" / 8 mm
5th: 0.31" / 8 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.77" / 45 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.77" / 45 mm

- Conning towers: Forward 4.92" / 125 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 65,180 shp / 48,624 Kw = 30.00 kts
Range 8,044nm at 14.00 kts
Bunker at max displacement = 1,660 tons

Complement:
479 - 624

Cost:
£2.511 million / $10.043 million

Distribution of weights at normal displacement:
Armament: 804 tons, 8.5 %
- Guns: 804 tons, 8.5 %
Armour: 1,796 tons, 19.0 %
- Belts: 869 tons, 9.2 %
- Armament: 238 tons, 2.5 %
- Armour Deck: 642 tons, 6.8 %
- Conning Tower: 47 tons, 0.5 %
Machinery: 2,178 tons, 23.0 %
Hull, fittings & equipment: 2,808 tons, 29.6 %
Fuel, ammunition & stores: 1,477 tons, 15.6 %
Miscellaneous weights: 414 tons, 4.4 %
- Hull below water: 40 tons
- Hull void weights: 50 tons
- Hull above water: 33 tons
- On freeboard deck: 125 tons
- Above deck: 166 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,282 lbs / 3,756 Kg = 46.5 x 7.1 " / 180 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.470 / 0.480
Length to Beam Ratio: 9.29 : 1
'Natural speed' for length: 23.20 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 21.16 ft / 6.45 m, 18.70 ft / 5.70 m
- Forward deck: 20.00 %, 18.70 ft / 5.70 m, 16.24 ft / 4.95 m
- Aft deck: 50.00 %, 16.24 ft / 4.95 m, 16.24 ft / 4.95 m
- Quarter deck: 10.00 %, 16.24 ft / 4.95 m, 16.24 ft / 4.95 m
- Average freeboard: 17.18 ft / 5.24 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104.2 %
- Above water (accommodation/working, high = better): 133.4 %
Waterplane Area: 20,224 Square feet or 1,879 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 99 lbs/sq ft or 484 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 1.41
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

Misc Wt.

50t - Reserve

AD
81t - Fire Control 1918
25t - LR Radio
10t - SR Radio dedicated AC center
25t - Searchlight tower (NF)
25t - Hulesmeyer

OD
45t - 2x 20+5 - Scout Float + Gunpwdr CAT
75t - 10% rotating wt Power Assist for 180L47
5t - Paravanes

HAW
8t - CO2 Compresser A/C
25t - Enhanced Fire Ext.

HBW
15t - Enhanced Hydrophones
25t - Extra Pumps.

Decks
+4.95 Weather Deck
+2.50 Battery Deck Top belt, Armored Deck
- 0.00 Deck
-1.5 Bottom main belt
-2.50
-5.-0 Engineering

Kaiser Kirk · September 18, 2023, 01:17:15 AM

Royal Nissean XV, Parthian Cruiser laid down 1927
Basic AA Refit 1929.5, all built to that standard after

1927.5 C - 29
1927.5 C - 30
1929.0 C - 31
1929.0 C - 32
1930.0 C - 33
1930.0 C - 34

Quote
Royal Nissean XV, Parthian Cruiser laid down 1927

Displacement:
7,987 t light; 8,557 t standard; 9,499 t normal; 10,253 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(523.95 ft / 518.37 ft) x 57.94 ft x (22.64 / 23.97 ft)
(159.70 m / 158.00 m) x 17.66 m x (6.90 / 7.31 m)

Armament:
12 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 180 per gun
Breech loading guns in deck and hoist mounts, 1923 Model
6 x 2-gun mounts on centreline, evenly spread
3 raised mounts
12 - 4.72" / 120 mm 43.0 cal guns - 55.12lbs / 25.00kg shells, 160 per gun
Quick firing guns in deck and hoist mounts, 1917 Model
6 x 2-gun mounts on side ends, majority forward
8 - 3.54" / 90.0 mm 54.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
24 - 1.46" / 37.0 mm 70.0 cal guns - 1.72lbs / 0.78kg shells, 1,500 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
4 x 2 row quad mounts on sides, evenly spread
4 raised mounts
2 x 2 row quad mounts on sides forward
2 double raised mounts
16 - 0.91" / 23.0 mm 90.0 cal guns - 0.44lbs / 0.20kg shells, 5,000 per gun
Machine guns in deck mounts, 1929 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 3,152 lbs / 1,430 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.92" / 125 mm 352.49 ft / 107.44 m 10.40 ft / 3.17 m
Ends: Unarmoured
Main Belt covers 105 % of normal length
Main belt does not fully cover magazines and engineering spaces
Main Belt inclined -12.00 degrees (positive = in)

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.91" / 150 mm 1.97" / 50 mm 5.12" / 130 mm
2nd: 0.59" / 15 mm 0.31" / 8 mm 0.31" / 8 mm
3rd: 0.59" / 15 mm - -
4th: 0.31" / 8 mm 0.31" / 8 mm 0.31" / 8 mm
5th: 0.31" / 8 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.97" / 50 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 4.92" / 125 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 67,245 shp / 50,165 Kw = 30.00 kts
Range 8,600nm at 14.00 kts
Bunker at max displacement = 1,696 tons

Complement:
480 - 625

Cost:
£3.214 million / $12.854 million

Distribution of weights at normal displacement:
Armament: 862 tons, 9.1 %
- Guns: 862 tons, 9.1 %
Armour: 1,684 tons, 17.7 %
- Belts: 740 tons, 7.8 %
- Armament: 201 tons, 2.1 %
- Armour Deck: 695 tons, 7.3 %
- Conning Tower: 48 tons, 0.5 %
Machinery: 2,123 tons, 22.3 %
Hull, fittings & equipment: 2,856 tons, 30.1 %
Fuel, ammunition & stores: 1,513 tons, 15.9 %
Miscellaneous weights: 462 tons, 4.9 %
- Hull below water: 40 tons
- Hull void weights: 50 tons
- Hull above water: 33 tons
- On freeboard deck: 168 tons
- Above deck: 171 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,245 lbs / 3,740 Kg = 46.3 x 7.1 " / 180 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.5 ft / 0.8 m
Roll period: 15.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.97
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.489 / 0.498
Length to Beam Ratio: 8.95 : 1
'Natural speed' for length: 22.77 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 26.25 ft / 8.00 m, 23.79 ft / 7.25 m
- Forward deck: 33.00 %, 23.79 ft / 7.25 m, 21.33 ft / 6.50 m
- Aft deck: 35.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 12.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Average freeboard: 18.72 ft / 5.71 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104.7 %
- Above water (accommodation/working, high = better): 140.5 %
Waterplane Area: 19,813 Square feet or 1,841 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 102 lbs/sq ft or 496 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 1.63
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

1929.5 Basic Refit AA for the XV series includes the 2 completed and the two building.

Misc Weight after refit :

Reserve - 50t

AD
86t - Fire Control
25t - LR Radio
10t - SR Radio -dedicated AC command center
0t - SR Radio
25t - Searchlight tower (NF)
25t - Hulesmeyer

OD
5t - Paravanes
32t - 2TT4 21" 4t
55t - 2x 20+5 - Fighter Float + Gunpwdr CAT on Stern
76t - 10% rotating wt Power Assist for 180L47

HAW
8t - CO2 Compresser A/C
25t - Enhanced Fire Ext.

HBW
15t - Enhanced Hydrophones
25t - Extra Pumps.

Decks
+6.5 Forecastle Deck
+4.1 Weather Deck
+1.6 Battery Deck Top belt, Armored Deck
-1.00 Deck
-1.5 Bottom main belt
-3.50
-5.80 Engineering
-6.9 Keel, double bottom

Displacement:
8,000 t light; 8,557 t standard; 9,499 t normal; 10,253 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(523.95 ft / 518.37 ft) x 57.94 ft x (22.64 / 23.97 ft)
(159.70 m / 158.00 m) x 17.66 m x (6.90 / 7.31 m)

Armament:
12 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 180 per gun
Breech loading guns in deck and hoist mounts, 1927 Model
6 x 2-gun mounts on centreline, evenly spread
3 raised mounts
12 - 4.72" / 120 mm 43.0 cal guns - 55.12lbs / 25.00kg shells, 160 per gun
Quick firing guns in deck and hoist mounts, 1927 Model
6 x 2-gun mounts on side ends, majority forward
8 - 3.54" / 90.0 mm 50.0 cal guns - 24.25lbs / 11.00kg shells, 400 per gun
Anti-air guns in deck and hoist mounts, 1927 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
12 - 2.24" / 57.0 mm 60.0 cal guns - 6.61lbs / 3.00kg shells, 800 per gun
Anti-air guns in deck and hoist mounts, 1927 Model
4 x 2-gun mounts on sides, evenly spread
4 raised mounts
2 x 2-gun mounts on sides forward
2 double raised mounts
16 - 0.59" / 15.0 mm 70.0 cal guns - 0.12lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1927 Model
8 x Twin mounts on sides, evenly spread
8 double raised mounts
Weight of broadside 3,185 lbs / 1,445 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.92" / 125 mm 352.49 ft / 107.44 m 10.40 ft / 3.17 m
Ends: Unarmoured
Main Belt covers 105 % of normal length
Main Belt inclined -12.00 degrees (positive = in)

- Hull void:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.91" / 150 mm 1.97" / 50 mm 5.12" / 130 mm
2nd: 0.59" / 15 mm 0.31" / 8 mm 0.31" / 8 mm
3rd: 0.59" / 15 mm - -
4th: 0.31" / 8 mm 0.31" / 8 mm 0.31" / 8 mm
5th: 0.31" / 8 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.97" / 50 mm
Forecastle: 0.98" / 25 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 4.92" / 125 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 67,245 shp / 50,165 Kw = 30.00 kts
Range 8,600nm at 14.00 kts
Bunker at max displacement = 1,696 tons

Complement:
480 - 625

Cost:
£3.213 million / $12.850 million

Distribution of weights at normal displacement:
Armament: 860 tons, 9.1 %
- Guns: 860 tons, 9.1 %
Armour: 1,684 tons, 17.7 %
- Belts: 740 tons, 7.8 %
- Armament: 201 tons, 2.1 %
- Armour Deck: 695 tons, 7.3 %
- Conning Tower: 48 tons, 0.5 %
Machinery: 2,123 tons, 22.3 %
Hull, fittings & equipment: 2,900 tons, 30.5 %
Fuel, ammunition & stores: 1,499 tons, 15.8 %
Miscellaneous weights: 433 tons, 4.6 %
- Hull below water: 40 tons
- Hull void weights: 40 tons
- Hull above water: 33 tons
- On freeboard deck: 149 tons
- Above deck: 171 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,370 lbs / 3,796 Kg = 47.0 x 7.1 " / 180 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.5 ft / 0.8 m
Roll period: 15.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.98
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.489 / 0.498
Length to Beam Ratio: 8.95 : 1
'Natural speed' for length: 22.77 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 26.25 ft / 8.00 m, 23.79 ft / 7.25 m
- Forward deck: 33.00 %, 23.79 ft / 7.25 m, 21.33 ft / 6.50 m
- Aft deck: 35.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Quarter deck: 12.00 %, 13.45 ft / 4.10 m, 13.45 ft / 4.10 m
- Average freeboard: 18.72 ft / 5.71 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104.5 %
- Above water (accommodation/working, high = better): 140.5 %
Waterplane Area: 19,813 Square feet or 1,841 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 103 lbs/sq ft or 503 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 1.65
- Overall: 0.91
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

MB Height : 1.6 AWL to -1.5BWL = 3.
3.21cos(12) = 3.169 =3.17

65t - Reserve

AD
86t - Fire Control 1918
25t - LR Radio
10t - SR Radio -dedicated AC command center
25t - Searchlight tower (NF)
25t - Hulesmeyer

OD
18t - 2TT3 21" 3t on stern
55t - 2x 20+5 - Fighter Float + Gunpwdr CAT
76t - 10% rotating wt Power Assist for 180L47

HAW
8t - CO2 Compresser A/C
25t - Enhanced Fire Ext.

HBW
15t - Enhanced Hydrophones
25t - Extra Pumps.

Decks
+6.5 Forecastle Deck
+4.1 Weather Deck
+1.6 Battery Deck Top belt, Armored Deck
-1.00 Deck
-1.5 Bottom main belt
-3.50
-5.80 Engineering
-6.9 Keel, double bottom

Kaiser Kirk · February 03, 2024, 12:45:46 PM

Pasbanendag "Watcher Bird", Parthian Seaplane Cruiser laid down 1930

CF - 1 Pasbanenbang , laid 1930
CF - 2 Xradenbang , laid 1930
CF - 3 Xursedendag , laid 1931.5
CF - 4 Ustanendag , laid 1931.5

QuoteDisplacement:
   8,000 t light; 8,460 t standard; 9,690 t normal; 10,675 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (557.74 ft / 551.18 ft) x 61.22 ft x (21.85 / 23.44 ft)
   (170.00 m / 168.00 m) x 18.66 m x (6.66 / 7.14 m)

Armament:
8 - 7.09" / 180 mm 47.0 cal guns - 187.39lbs / 85.00kg shells, 165 per gun
     Breech loading guns in deck and hoist mounts, 1921 Model
     2 x 2-gun mounts on centreline, forward deck forward
      1 raised mount - superfiring
     2 x 2-gun mounts on centreline, forward deck aft
      1 raised mount - superfiring
12 - 4.72" / 120 mm 43.0 cal guns - 51.50lbs / 23.36kg shells, 280 per gun
     Dual purpose guns in deck and hoist mounts, 1929 Model
     6 x 2-gun mounts on sides, forward evenly spread
      2 raised mounts
16 - 1.46" / 37.0 mm 70.0 cal guns - 1.72lbs / 0.78kg shells, 900 per gun
     Anti-air guns in deck and hoist mounts, 1939 Model
     2 x 4-gun mounts on sides amidships
      2 raised mounts
     2 x 4-gun mounts on centreline ends, evenly spread
      2 double raised mounts
16 - 0.91" / 23.0 mm 90.0 cal guns - 0.43lbs / 0.20kg shells, 5,000 per gun
     Machine guns in deck mounts, 1939 Model
     8 x Twin mounts on sides, evenly spread
      8 double raised mounts
Weight of broadside 2,152 lbs / 976 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.94" / 100 mm   358.27 ft / 109.20 m   12.57 ft / 3.83 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined -15.00 degrees (positive = in)

- Hull void:
      0.00" / 0 mm     0.00 ft / 0.00 m   0.00 ft / 0.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.12" / 130 mm   1.57" / 40 mm      3.94" / 100 mm
   2nd:   1.57" / 40 mm   0.98" / 25 mm      0.98" / 25 mm
   3rd:   0.59" / 15 mm     -           -
   4th:   0.12" / 3 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 2.17" / 55 mm
   Forecastle: 1.57" / 40 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 4.92" / 125 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 65,356 shp / 48,756 Kw = 30.00 kts
   Range 8,500nm at 16.00 kts
   Bunker at max displacement = 2,214 tons

Complement:
   487 - 634

Cost:
   £3.204 million / $12.817 million

Distribution of weights at normal displacement:
   Armament: 597 tons, 6.2 %
     - Guns: 597 tons, 6.2 %
   Armour: 1,758 tons, 18.1 %
     - Belts: 730 tons, 7.5 %
     - Armament: 147 tons, 1.5 %
     - Armour Deck: 832 tons, 8.6 %
     - Conning Tower: 48 tons, 0.5 %
   Machinery: 1,980 tons, 20.4 %
   Hull, fittings & equipment: 3,078 tons, 31.8 %
   Fuel, ammunition & stores: 1,690 tons, 17.4 %
   Miscellaneous weights: 587 tons, 6.1 %
     - Hull below water: 73 tons
     - Hull void weights: 95 tons
     - Hull above water: 16 tons
     - On freeboard deck: 248 tons
     - Above deck: 155 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,548 lbs / 5,238 Kg = 64.9 x 7.1 " / 180 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 2.8 ft / 0.9 m
   Roll period: 15.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.460 / 0.472
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 23.48 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 13.00 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 25.92 ft / 7.90 m, 23.29 ft / 7.10 m
     - Forward deck:   40.00 %, 23.29 ft / 7.10 m, 22.64 ft / 6.90 m
     - Aft deck:   25.00 %, 14.44 ft / 4.40 m, 14.44 ft / 4.40 m
     - Quarter deck:   15.00 %, 14.44 ft / 4.40 m, 3.28 ft / 1.00 m
     - Average freeboard:      18.99 ft / 5.79 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88.7 %
      - Above water (accommodation/working, high = better): 167.1 %
   Waterplane Area: 21,704 Square feet or 2,016 Square metres
   Displacement factor (Displacement / loading): 117 %
   Structure weight / hull surface area: 98 lbs/sq ft or 476 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.51
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Pasban = Watcher
-endag = bird
winjisk - sparrow
Xrad - wisdom
ustan - ghost
wad - wind/spirit

Xursedendag = Sunbird

Conceptually there will be an outer shell of scouting cruisers,
which can 'fall back' on the Armored Cruisers. Those have the flight deck cruisers along.

Behind, close screening the fleet will be the destroyers and sentry cruisers,
with the battleline followed by fighter carriers and a handful of cruisers.

It is too expensive to provide scout carriers and they are too vulnerable.
So the concept of IJN Tone is borrowed, with a A/B and P/Q gun arrangement,
but an aft seaplane handling area for both scouts and fighters (to disrupt attackers).

Intended to provide a cruiser with a decent "punch"
of fast rotating 180mm guns, but high speed and range..
while also providing that fleet scout role.

The seaplane facilities results in guns in "A/B" and "P/Q" amidships but a aft deck and stern cleared for aircraft handling ala Tone

This is modeled by a long foredeck covering 20+40=60% of the ship,
with A/B being "Fore deck foreward", and "P/Q" being "fore deck aft"
This leaves the 40% of the ship aft - 67.2m / 202.4ft for handling aircraft.

This handling deck is a deck level lower than the forecastle deck, allowing the aft guns to fire over with only shallow elevations to clear.

The stern slopes down to make a ramp, allowing planes to be brought on board more readily.
This is modeled by a long foredeck covering 20+40=60% of the ship,
with A/B being "Fore deck foreward", and "P/Q" being "fore deck aft"
This leaves the 40% of the ship aft - 67.2m / 202.4ft for handling aircraft.

This handling deck is a deck level lower than the forecastle deck, allowing the aft guns to fire over with only shallow elevations to clear.

The stern slopes down to make a ramp, allowing planes to be brought on board more readily.

Main armor belt is outsloped 15 degrees
3.7 / cos (15) =3.8305= 3.83

Forecastle/Quarterdeck are protective decks

Misc
75t - Reserve weight.

AD
60 - FC
25 - LR radio
0t - SR Radio
25t - Hulesmeyer prox detection
35t - Searchlight tower (NF) & ATC Observation station
10t - SR Radio, dedicated AC

OD
On Forecastle deck
49t - 10% tonnage - power assist for Main Battery
5t Paravanes
24t 2TT4 21"

On aft deck :
10t - 2x Gunpowder Catapults
50t - 2x Fighter Float
100t - 4x Scout Float (normal, able to fit Ftr)
(cranes and nets for recovery part of floatplane cost)
10t - rail system.

HAW
8t - CO2 A/C
8t- Enhanced Fire Suppresion.

HBW
8t - Enhanced Pumps
15t - Enhanced Hydrophones
50t - Additional AvGas in double tank (5t +45t gas)

Decks
+6.9
+4.4
+1.9 Main Armor Deck, Top Main Belt.
-0.60 2nd Deck
-1.8 Bottom Main Belt
-3.10 1st Deck
-5.59 Double Bottom, Engineering
-6.66 Keel