Monitors and Coastal Defence Ships

The Rock Doctor · March 08, 2018, 01:42:36 PM

Monitors are named after mountains, which is ironic given how generally underwhelming most Union mountains tend to be.

The Rock Doctor · March 08, 2018, 01:45:34 PM

Lysica Class Monitor

These guys set the pattern for Union monitors after a run of ships with open-topped barbettes that we no longer talk about in polite company.

Lysica, M-5, laid down 1892, scrapped 1916
Wurmberg, M-6, laid down 1893, scrapped 1916

Enter ship name, Enter country Enter ship type laid down 1892

Displacement:
   4,098 t light; 4,253 t standard; 4,577 t normal; 4,836 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (301.84 ft / 295.28 ft) x 59.06 ft x (13.12 / 13.77 ft)
   (92.00 m / 90.00 m) x 18.00 m x (4.00 / 4.20 m)

Armament:
2 - 9.84" / 250 mm 40.0 cal guns - 456.92lbs / 207.26kg shells, 80 per gun
     Breech loading guns in turret on barbette mount, 1892 Model
     1 x Twin mount on centreline, forward deck aft
      1 raised mount
4 - 5.12" / 130 mm 40.0 cal guns - 64.25lbs / 29.14kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1892 Model
     4 x Single mounts on centreline, aft evenly spread
4 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 150 per gun
     Quick firing guns in deck mounts, 1892 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
Weight of broadside 1,185 lbs / 538 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   164.04 ft / 50.00 m   9.22 ft / 2.81 m
   Ends:   1.97" / 50 mm   131.20 ft / 39.99 m   9.22 ft / 2.81 m
   Upper:   3.94" / 100 mm   191.93 ft / 58.50 m   8.01 ft / 2.44 m
     Main Belt covers 85 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      7.87" / 200 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm   0.39" / 10 mm        -

- Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 1,072 ihp / 800 Kw = 10.39 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 583 tons (100% coal)

Complement:
   277 - 361

Cost:
   £0.260 million / $1.038 million

Distribution of weights at normal displacement:
   Armament: 218 tons, 4.8 %
     - Guns: 218 tons, 4.8 %
   Armour: 1,765 tons, 38.6 %
     - Belts: 943 tons, 20.6 %
     - Armament: 280 tons, 6.1 %
     - Armour Deck: 495 tons, 10.8 %
     - Conning Tower: 47 tons, 1.0 %
   Machinery: 204 tons, 4.5 %
   Hull, fittings & equipment: 1,811 tons, 39.6 %
   Fuel, ammunition & stores: 479 tons, 10.5 %
   Miscellaneous weights: 100 tons, 2.2 %
     - Hull above water: 100 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     16,832 lbs / 7,635 Kg = 35.3 x 9.8 " / 250 mm shells or 4.2 torpedoes
   Stability (Unstable if below 1.00): 1.42
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality (Average = 1.00): 1.85

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.700 / 0.705
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 28 %
   Trim (Max stability = 0, Max steadiness = 100): 38
   Bow angle (Positive = bow angles forward): 0.00 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 %, 20.01 ft / 6.10 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Aft deck:   35.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Quarter deck:   15.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Average freeboard:      14.27 ft / 4.35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 35.7 %
      - Above water (accommodation/working, high = better): 132.7 %
   Waterplane Area: 13,977 Square feet or 1,298 Square metres
   Displacement factor (Displacement / loading): 147 %
   Structure weight / hull surface area: 105 lbs/sq ft or 511 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.53
      - Overall: 1.01
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Rock Doctor · March 08, 2018, 01:47:12 PM

Klinovec Class Monitors

Klinovec, M-7, laid down 1897, scrapped 1928
Brocken, M-8, laid down 1898, scrapped 1928

Enter ship name, Enter country Enter ship type laid down 1897

Displacement:
   4,344 t light; 4,521 t standard; 4,831 t normal; 5,079 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (301.84 ft / 295.28 ft) x 62.34 ft x (13.12 / 13.71 ft)
   (92.00 m / 90.00 m) x 19.00 m x (4.00 / 4.18 m)

Armament:
2 - 11.02" / 280 mm 40.0 cal guns - 641.94lbs / 291.18kg shells, 80 per gun
     Breech loading guns in turret on barbette mount, 1897 Model
     1 x Twin mount on centreline, forward deck aft
      1 raised mount
4 - 5.12" / 130 mm 40.0 cal guns - 64.25lbs / 29.14kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     4 x Single mounts on centreline, aft evenly spread
4 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 150 per gun
     Quick firing guns in deck mounts, 1897 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
Weight of broadside 1,555 lbs / 706 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   164.04 ft / 50.00 m   9.22 ft / 2.81 m
   Ends:   1.97" / 50 mm   131.20 ft / 39.99 m   9.22 ft / 2.81 m
   Upper:   3.94" / 100 mm   191.93 ft / 58.50 m   8.01 ft / 2.44 m
     Main Belt covers 85 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      7.87" / 200 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm   0.39" / 10 mm        -

- Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 1,072 ihp / 800 Kw = 10.27 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 559 tons (100% coal)

Complement:
   289 - 376

Cost:
   £0.295 million / $1.179 million

Distribution of weights at normal displacement:
   Armament: 245 tons, 5.1 %
     - Guns: 245 tons, 5.1 %
   Armour: 1,840 tons, 38.1 %
     - Belts: 954 tons, 19.7 %
     - Armament: 315 tons, 6.5 %
     - Armour Deck: 522 tons, 10.8 %
     - Conning Tower: 48 tons, 1.0 %
   Machinery: 176 tons, 3.6 %
   Hull, fittings & equipment: 1,997 tons, 41.3 %
   Fuel, ammunition & stores: 487 tons, 10.1 %
   Miscellaneous weights: 87 tons, 1.8 %
     - Hull above water: 87 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,130 lbs / 7,770 Kg = 25.6 x 11.0 " / 280 mm shells or 4.2 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 4.6 ft / 1.4 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.35
   Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.700 / 0.704
   Length to Beam Ratio: 4.74 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 28 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   Bow angle (Positive = bow angles forward): 0.00 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 %, 20.01 ft / 6.10 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Aft deck:   35.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Quarter deck:   15.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Average freeboard:      14.27 ft / 4.35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 37.2 %
      - Above water (accommodation/working, high = better): 134.2 %
   Waterplane Area: 14,753 Square feet or 1,371 Square metres
   Displacement factor (Displacement / loading): 142 %
   Structure weight / hull surface area: 110 lbs/sq ft or 539 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.73
      - Overall: 1.01
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Rock Doctor · March 08, 2018, 01:56:59 PM

Wasserkuppe Class Monitor

The second unit of this class was lost in a collision with a bulk ore carrier off the Swedish coast soon after commissioning. An inquiry found that the inexperience of the crew played a role in the accident, which claimed the lives of 87 military personnel and the entire crew of the freighter, which went down almost immediately.

Note: The lost monitor is not counted towards Union starting tonnage figures.

Wasserkuppe, M-9, laid down 1905
Fichetelberg, M-10, laid down 1906, lost 1908

As refurbished, 1916 (Wasserkuppe only, obviously)

Enter ship name, Enter country Enter ship type laid down 1905 (Engine 1916)

Displacement:
4,728 t light; 4,932 t standard; 5,255 t normal; 5,513 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(311.68 ft / 305.12 ft) x 65.62 ft x (13.12 / 13.69 ft)
(95.00 m / 93.00 m) x 20.00 m x (4.00 / 4.17 m)

Armament:
2 - 11.02" / 280 mm 45.0 cal guns - 675.51lbs / 306.40kg shells, 80 per gun
Breech loading guns in turret on barbette mount, 1905 Model
1 x Twin mount on centreline, forward deck aft
1 raised mount
4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
Breech loading guns in deck and hoist mounts, 1905 Model
2 x Single mounts on centreline, aft evenly spread
1 raised mount
2 x Single mounts on sides, aft deck forward
2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 150 per gun
Anti-air guns in deck mounts, 1905 Model
2 x Single mounts on sides, aft deck centre
2 raised mounts
4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
Machine guns in deck mounts, 1905 Model
4 x Single mounts on sides, evenly spread
4 raised mounts
Weight of broadside 1,629 lbs / 739 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.87" / 200 mm 164.04 ft / 50.00 m 9.22 ft / 2.81 m
Ends: 1.97" / 50 mm 141.04 ft / 42.99 m 9.22 ft / 2.81 m
Upper: 3.94" / 100 mm 191.93 ft / 58.50 m 8.01 ft / 2.44 m
Main Belt covers 83 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.87" / 200 mm 3.94" / 100 mm 7.87" / 200 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.79" / 20 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.97" / 50 mm
Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 2,413 shp / 1,800 Kw = 12.72 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 581 tons (30% coal)

Complement:
308 - 401

Cost:
£0.331 million / $1.323 million

Distribution of weights at normal displacement:
Armament: 320 tons, 6.1 %
- Guns: 320 tons, 6.1 %
Armour: 1,912 tons, 36.4 %
- Belts: 973 tons, 18.5 %
- Armament: 320 tons, 6.1 %
- Armour Deck: 568 tons, 10.8 %
- Conning Tower: 51 tons, 1.0 %
Machinery: 92 tons, 1.8 %
Hull, fittings & equipment: 2,118 tons, 40.3 %
Fuel, ammunition & stores: 527 tons, 10.0 %
Miscellaneous weights: 285 tons, 5.4 %
- Hull above water: 75 tons
- On freeboard deck: 150 tons
- Above deck: 60 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,701 lbs / 8,936 Kg = 29.4 x 11.0 " / 280 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 1.41
Metacentric height 4.8 ft / 1.5 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.72

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.700 / 0.704
Length to Beam Ratio: 4.65 : 1
'Natural speed' for length: 17.47 kts
Power going to wave formation at top speed: 37 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 0.00 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 %, 20.01 ft / 6.10 m, 18.04 ft / 5.50 m
- Forward deck: 30.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
- Aft deck: 35.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
- Quarter deck: 15.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
- Average freeboard: 14.27 ft / 4.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 34.8 %
- Above water (accommodation/working, high = better): 137.0 %
Waterplane Area: 16,047 Square feet or 1,491 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 111 lbs/sq ft or 542 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.61
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

------

As built:

Enter ship name, Enter country Enter ship type laid down 1905

Displacement:
   4,711 t light; 4,900 t standard; 5,255 t normal; 5,539 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (311.68 ft / 305.12 ft) x 65.62 ft x (13.12 / 13.74 ft)
   (95.00 m / 93.00 m) x 20.00 m x (4.00 / 4.19 m)

Armament:
2 - 11.02" / 280 mm 45.0 cal guns - 675.51lbs / 306.40kg shells, 80 per gun
     Breech loading guns in turret on barbette mount, 1905 Model
     1 x Twin mount on centreline, forward deck aft
      1 raised mount
4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1905 Model
     4 x Single mounts on centreline, aft evenly spread
4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 150 per gun
     Quick firing guns in deck mounts, 1905 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
Weight of broadside 1,637 lbs / 742 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   164.04 ft / 50.00 m   9.22 ft / 2.81 m
   Ends:   1.97" / 50 mm   141.04 ft / 42.99 m   9.22 ft / 2.81 m
   Upper:   3.94" / 100 mm   191.93 ft / 58.50 m   8.01 ft / 2.44 m
     Main Belt covers 83 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      7.87" / 200 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm   0.39" / 10 mm        -

- Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 1,206 shp / 900 Kw = 10.46 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 639 tons (100% coal)

Complement:
   308 - 401

Cost:
   £0.319 million / $1.275 million

Distribution of weights at normal displacement:
   Armament: 290 tons, 5.5 %
     - Guns: 290 tons, 5.5 %
   Armour: 1,908 tons, 36.3 %
     - Belts: 973 tons, 18.5 %
     - Armament: 315 tons, 6.0 %
     - Armour Deck: 568 tons, 10.8 %
     - Conning Tower: 51 tons, 1.0 %
   Machinery: 101 tons, 1.9 %
   Hull, fittings & equipment: 2,093 tons, 39.8 %
   Fuel, ammunition & stores: 544 tons, 10.4 %
   Miscellaneous weights: 320 tons, 6.1 %
     - On freeboard deck: 320 tons

Fittings:
-25 t: LR wireless
-100 t: Command facilities
-195 t: Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22,012 lbs / 9,985 Kg = 32.9 x 11.0 " / 280 mm shells or 5.4 torpedoes
   Stability (Unstable if below 1.00): 1.43
   Metacentric height 5.0 ft / 1.5 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.30
   Seaboat quality (Average = 1.00): 1.74

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.700 / 0.705
   Length to Beam Ratio: 4.65 : 1
   'Natural speed' for length: 17.47 kts
   Power going to wave formation at top speed: 28 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   Bow angle (Positive = bow angles forward): 0.00 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 %, 20.01 ft / 6.10 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Aft deck:   35.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Quarter deck:   15.00 %, 10.17 ft / 3.10 m, 10.17 ft / 3.10 m
     - Average freeboard:      14.27 ft / 4.35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 31.5 %
      - Above water (accommodation/working, high = better): 137.0 %
   Waterplane Area: 16,047 Square feet or 1,491 Square metres
   Displacement factor (Displacement / loading): 140 %
   Structure weight / hull surface area: 109 lbs/sq ft or 532 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.59
      - Overall: 1.01
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Rock Doctor · August 09, 2020, 04:54:34 PM

Szczyt Class Monitor

A test-bed for the 350mm/45 gun.

Szczyt, M-11, laid down 1912

AS REFITTED, 1931

Enter ship name, Enter country Enter ship type laid down 1912 (refit 1931)

Displacement:
11,108 t light; 11,659 t standard; 12,325 t normal; 12,857 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(404.54 ft / 393.70 ft) x 95.14 ft x (17.72 / 18.37 ft)
(123.30 m / 120.00 m) x 29.00 m x (5.40 / 5.60 m)

Armament:
3 - 13.78" / 350 mm 45.0 cal guns - 1,319.35lbs / 598.45kg shells, 90 per gun
Breech loading guns in turret on barbette mount, 1912 Model
1 x Triple mount on centreline, forward deck aft
1 raised mount
10 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 150 per gun
Breech loading guns in deck mounts, 1912 Model
8 x Single mounts on sides, evenly spread
2 x Single mounts on sides, aft deck centre
2 raised mounts
4 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 400 per gun
Anti-air guns in deck mounts, 1912 Model
4 x Single mounts on sides, aft evenly spread
4 raised mounts
6 - 1.97" / 50.0 mm 60.0 cal guns - 4.18lbs / 1.89kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1912 Model
2 x Twin mounts on sides, forward deck aft
1 x Twin mount on centreline, aft deck centre
1 double raised mount
8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1912 Model
4 x Twin mounts on sides, evenly spread
4 double raised mounts
Weight of broadside 4,783 lbs / 2,170 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.87" / 200 mm 255.91 ft / 78.00 m 11.81 ft / 3.60 m
Ends: 3.94" / 100 mm 137.76 ft / 41.99 m 11.81 ft / 3.60 m
Upper: 3.94" / 100 mm 255.91 ft / 78.00 m 8.53 ft / 2.60 m
Main Belt covers 100% of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
1.97" / 50 mm 255.91 ft / 78.00 m 16.99 ft / 5.18 m
Beam between torpedo bulkheads 88.58 ft / 27.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 7.87" / 200 mm 13.8" / 350 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm -
3rd: 0.79" / 20 mm 0.59" / 15 mm -
4th: 0.59" / 15 mm - -
5th: 0.59" / 15 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 1.97" / 50 mm
Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 11.81" / 300 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 8,043 shp / 6,000 Kw = 15.56 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 1,198 tons (45% coal)

Complement:
584 - 760

Cost:
£0.845 million / $3.380 million

Distribution of weights at normal displacement:
Armament: 808 tons, 6.6%
- Guns: 808 tons, 6.6%
Armour: 4,155 tons, 33.7%
- Belts: 1,779 tons, 14.4%
- Torpedo bulkhead: 317 tons, 2.6%
- Armament: 907 tons, 7.4%
- Armour Deck: 1,016 tons, 8.2%
- Conning Tower: 136 tons, 1.1%
Machinery: 334 tons, 2.7%
Hull, fittings & equipment: 5,470 tons, 44.4%
Fuel, ammunition & stores: 1,217 tons, 9.9%
Miscellaneous weights: 340 tons, 2.8%
- On freeboard deck: 100 tons
- Above deck: 240 tons

Fittings:
-81 t: 1924 Fire control (AD)
-25 t: L/R wireless (AD)
-100 t: Command facilities (AD)
-25 t: Nightfighting doodads (AD)
-80 t: Classroom facilities (FD)
-9 + 20 t: Weight reserve (AD/FD)

AS BUILT, 1912

Szczyt, Union monitor laid down 1912

Displacement:
11,146 t light; 11,659 t standard; 12,325 t normal; 12,857 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(404.54 ft / 393.70 ft) x 95.14 ft x (17.72 / 18.37 ft)
(123.30 m / 120.00 m) x 29.00 m x (5.40 / 5.60 m)

Armament:
3 - 13.78" / 350 mm 45.0 cal guns - 1,319.35lbs / 598.45kg shells, 90 per gun
Breech loading guns in turret on barbette mount, 1912 Model
1 x Triple mount on centreline, forward deck aft
1 raised mount
12 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 150 per gun
Breech loading guns in deck mounts, 1912 Model
8 x Single mounts on sides, evenly spread
4 x Single mounts on sides, aft evenly spread
4 raised mounts
4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
Machine guns in deck mounts, 1912 Model
4 x Single mounts on sides, evenly spread
4 raised mounts
2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 150 per gun
Anti-air guns in deck mounts, 1912 Model
2 x Single mounts on sides, aft deck centre
Weight of broadside 4,777 lbs / 2,167 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.87" / 200 mm 255.91 ft / 78.00 m 11.81 ft / 3.60 m
Ends: 3.94" / 100 mm 137.76 ft / 41.99 m 11.81 ft / 3.60 m
Upper: 3.94" / 100 mm 255.91 ft / 78.00 m 8.53 ft / 2.60 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
1.97" / 50 mm 255.91 ft / 78.00 m 16.99 ft / 5.18 m
Beam between torpedo bulkheads 88.58 ft / 27.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 7.87" / 200 mm 13.8" / 350 mm
2nd: 0.98" / 25 mm 0.98" / 25 mm -
3rd: 0.20" / 5 mm - -
4th: 0.39" / 10 mm 0.39" / 10 mm -

- Armoured deck - multiple decks:
For and Aft decks: 1.97" / 50 mm
Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 11.81" / 300 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 8,043 shp / 6,000 Kw = 15.56 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 1,198 tons (45% coal)

Complement:
584 - 760

Cost:
£0.845 million / $3.381 million

Distribution of weights at normal displacement:
Armament: 801 tons, 6.5 %
- Guns: 801 tons, 6.5 %
Armour: 4,161 tons, 33.8 %
- Belts: 1,784 tons, 14.5 %
- Torpedo bulkhead: 317 tons, 2.6 %
- Armament: 908 tons, 7.4 %
- Armour Deck: 1,016 tons, 8.2 %
- Conning Tower: 136 tons, 1.1 %
Machinery: 334 tons, 2.7 %
Hull, fittings & equipment: 5,550 tons, 45.0 %
Fuel, ammunition & stores: 1,179 tons, 9.6 %
Miscellaneous weights: 300 tons, 2.4 %
- Hull above water: 100 tons
- On freeboard deck: 100 tons
- Above deck: 100 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
36,277 lbs / 16,455 Kg = 27.7 x 13.8 " / 350 mm shells or 10.0 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 7.6 ft / 2.3 m
Roll period: 14.5 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.70

Hull form characteristics:
Hull has raised forecastle,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.650 / 0.654
Length to Beam Ratio: 4.14 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 10.00 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 %, 24.28 ft / 7.40 m, 24.28 ft / 7.40 m
- Forward deck: 30.00 %, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
- Aft deck: 35.00 %, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
- Quarter deck: 15.00 %, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
- Average freeboard: 17.98 ft / 5.48 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.8 %
- Above water (accommodation/working, high = better): 153.5 %
Waterplane Area: 28,695 Square feet or 2,666 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 166 lbs/sq ft or 811 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.85
- Overall: 1.01
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Rock Doctor · July 12, 2021, 07:42:01 PM

Attakulla Class Monitor

The Attakulla continues the Union habit of kicking off a run of new capital ships with a monitor test-bed.

It's expected that the 40cm gun will equip the next class(es) of Union capital ships, although the development of twin and triple turrets allows some creativity in their final layout. As the more complex mounting, though, the triple is installed here.

The armor is sloped (top = further outboard, bottom = further inboard), with net height equal to two 2.4 metre decks on the ship. That said, I'm not sure if the things I've ticked within SS are consistent with this because I found the instructions a bit vague. However, the presence or absence of a negative sign didn't actually seem to affect any numerical quality of the design so a fix, if needed, is simple enough.

The turret is not armored to the degree that a normal capital ship would be - this is a weight-savings measure applied to what is already a pretty expensive vessel. Still, she's well protected against anything smaller than a modern armored cruiser or capital ship. I'm not entirely clear as to the difference between a triple turret (chosen here) and a three-gun turret, so...?

As previously noted, there are some command facilities in place and she'll likely be deployed to a major overseas territory as station command ship once the initial gunnery trials are completed.

Astute members will note minor cosmetic differences in the drawing compared to preceding monitor and capital ship types; it gives hints as to where I'm going with future drawings.

Attakulla, M-12, laid down 1918

Enter ship name, Enter country Enter ship type laid down 1918

Displacement:
   12,661 t light; 13,391 t standard; 14,249 t normal; 14,935 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (447.08 ft / 436.35 ft) x 101.71 ft (Bulges 108.27 ft) x (16.24 / 16.95 ft)
   (136.27 m / 133.00 m) x 31.00 m (Bulges 33.00 m) x (4.95 / 5.17 m)

Armament:
3 - 15.75" / 400 mm 45.0 cal guns - 1,984.16lbs / 900.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mount, 1918 Model
     1 x 3-gun mount on centreline, forward deck aft
12 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     4 x Twin mounts on sides, aft evenly spread
     2 x Twin mounts on centreline, aft evenly spread
      1 raised mount
4 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1918 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
4 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1918 Model
     4 x Single mounts on sides, aft evenly spread
      4 raised mounts
Weight of broadside 6,779 lbs / 3,075 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   283.63 ft / 86.45 m   16.11 ft / 4.91 m
   Ends:   1.97" / 50 mm   152.69 ft / 46.54 m   11.81 ft / 3.60 m
     Main Belt covers 100 % of normal length
     Main Belt inclined -12.00 degrees (positive = in)

- Torpedo Bulkhead - Additional damage containing bulkheads:
      2.95" / 75 mm   283.63 ft / 86.45 m   15.42 ft / 4.70 m
   Beam between torpedo bulkheads 88.58 ft / 27.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      7.87" / 200 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.39" / 10 mm     -           -
   4th:   0.79" / 20 mm   0.39" / 10 mm        -

- Armoured deck - multiple decks:
   For and Aft decks: 2.36" / 60 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 2.36" / 60 mm

- Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 9,425 shp / 7,031 Kw = 15.81 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 1,544 tons

Complement:
   651 - 847

Cost:
   £2.239 million / $8.956 million

Distribution of weights at normal displacement:
   Armament: 1,354 tons, 9.5 %
     - Guns: 1,354 tons, 9.5 %
   Armour: 4,422 tons, 31.0 %
     - Belts: 1,832 tons, 12.9 %
     - Torpedo bulkhead: 478 tons, 3.4 %
     - Armament: 606 tons, 4.3 %
     - Armour Deck: 1,406 tons, 9.9 %
     - Conning Tower: 100 tons, 0.7 %
   Machinery: 340 tons, 2.4 %
   Hull, fittings & equipment: 6,255 tons, 43.9 %
   Fuel, ammunition & stores: 1,588 tons, 11.1 %
   Miscellaneous weights: 290 tons, 2.0 %
     - On freeboard deck: 50 tons
     - Above deck: 240 tons

Fittings:
-115 t: 1912 Fire control
-100 t: Flag facilities
-25 t : L/R wireless
-50 t : Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     41,209 lbs / 18,692 Kg = 21.1 x 15.7 " / 400 mm shells or 10.7 torpedoes
   Stability (Unstable if below 1.00): 1.59
   Metacentric height 11.2 ft / 3.4 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality (Average = 1.00): 1.56

Hull form characteristics:
   Hull has low forecastle, rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.650 / 0.653
   Length to Beam Ratio: 4.03 : 1
   'Natural speed' for length: 20.89 kts
   Power going to wave formation at top speed: 39 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   25.00 %, 23.62 ft / 7.20 m, 15.75 ft / 4.80 m
     - Forward deck:   20.00 %, 23.62 ft / 7.20 m, 23.62 ft / 7.20 m
     - Aft deck:   40.00 %, 15.75 ft / 4.80 m, 15.75 ft / 4.80 m
     - Quarter deck:   15.00 %, 15.75 ft / 4.80 m, 15.75 ft / 4.80 m
     - Average freeboard:      18.11 ft / 5.52 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 56.1 %
      - Above water (accommodation/working, high = better): 182.8 %
   Waterplane Area: 33,997 Square feet or 3,158 Square metres
   Displacement factor (Displacement / loading): 125 %
   Structure weight / hull surface area: 166 lbs/sq ft or 811 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.28
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Rock Doctor · June 26, 2023, 07:40:29 PM

Zugspitze Class Monitor

The 1926 monitor will test out the new 450mm gun, in a single mounting.

Between adjusted freeboard/depth and the superfiring turret, there's now six deck levels to accommodate the turret overall and that seemed to be the necessary minimum from my readings.

The superstructure reflects a slightly compact version of the new form being introduced on the G-class battleships. This includes some space for classroom facilities to allow the ship to double as a gunnery training platform if not being used to test the main gun or operate as a station flagship.

Zugspitze, M-13, laid down 1926

Enter ship name, Enter country Enter ship type laid down 1926

Displacement:
8,819 t light; 9,232 t standard; 10,149 t normal; 10,883 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(402.50 ft / 393.70 ft) x 85.30 ft x (17.06 / 18.09 ft)
(122.68 m / 120.00 m) x 26.00 m x (5.20 / 5.51 m)

Armament:
1 - 17.72" / 450 mm 45.0 cal gun - 2,976.24lbs / 1,350.00kg shells, 90 per gun
Breech loading gun in turret on barbette mount, 1926 Model
1 x Single mount on centreline, forward deck centre
1 raised mount
4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
Quick firing guns in deck and hoist mounts, 1926 Model
2 x 2-gun mounts on centreline, aft deck aft
1 raised mount - superfiring
4 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 300 per gun
Anti-air guns in deck mounts, 1926 Model
4 x Single mounts on sides, aft deck forward
12 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
Machine guns in deck mounts, 1926 Model
6 x Twin mounts on sides, evenly spread
6 raised mounts
Weight of broadside 3,371 lbs / 1,529 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 255.91 ft / 78.00 m 16.37 ft / 4.99 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 255.91 ft / 78.00 m 16.21 ft / 4.94 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.8" / 300 mm 5.12" / 130 mm 7.87" / 200 mm
2nd: 1.97" / 50 mm 1.18" / 30 mm 1.97" / 50 mm
3rd: 0.79" / 20 mm 0.79" / 20 mm -
4th: 0.59" / 15 mm 0.12" / 3 mm -

- Armoured deck - single deck: 2.56" / 65 mm For and Aft decks
Forecastle: 1.97" / 50 mm Quarter deck: 2.56" / 65 mm

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

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 10,724 shp / 8,000 Kw = 17.46 kts
Range 16,400nm at 10.00 kts
Bunker at max displacement = 1,652 tons

Complement:
505 - 657

Cost:
£2.246 million / $8.985 million

Distribution of weights at normal displacement:
Armament: 627 tons, 6.2 %
Armour: 2,711 tons, 26.7 %
- Belts: 764 tons, 7.5 %
- Torpedo bulkhead: 242 tons, 2.4 %
- Armament: 516 tons, 5.1 %
- Armour Deck: 1,150 tons, 11.3 %
- Conning Tower: 40 tons, 0.4 %
Machinery: 343 tons, 3.4 %
Hull, fittings & equipment: 4,473 tons, 44.1 %
Fuel, ammunition & stores: 1,331 tons, 13.1 %
Miscellaneous weights: 664 tons, 6.5 %
- Hull below water: 86 tons
- Hull above water: 120 tons
- On freeboard deck: 58 tons
- Above deck: 400 tons

-86 t: Electric motors (BW)
-120 t: Torpedo nets (AW)
-63 t: Fire control (AD)
-25 t: Nightfighting doodads (AD)
-25 t: L/R wireless (AD)
-10 t: Second S/R wireless (AD)
-100 t: Command facilities (AD)
-100 t: Classroom facilities (AD)
-135 t: Weight reserve (FD/AD)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
32,792 lbs / 14,874 Kg = 11.8 x 17.7 " / 450 mm shells or 8.5 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 6.3 ft / 1.9 m
Roll period: 14.3 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.71

Hull form characteristics:
Hull has low forecastle, rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.620 / 0.627
Length to Beam Ratio: 4.62 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 21.98 ft / 6.70 m, 14.44 ft / 4.40 m
- Forward deck: 30.00 %, 22.31 ft / 6.80 m, 22.31 ft / 6.80 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, 14.44 ft / 4.40 m
- Average freeboard: 17.70 ft / 5.40 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 53.2 %
- Above water (accommodation/working, high = better): 176.8 %
Waterplane Area: 25,024 Square feet or 2,325 Square metres
Displacement factor (Displacement / loading): 148 %
Structure weight / hull surface area: 149 lbs/sq ft or 730 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.81
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
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

The Rock Doctor · March 12, 2024, 07:34:41 PM

Rysy Class Gunship

They can do some of the things my bigger, more expensive and valuable light cruisers would otherwise be tasked with - close-in naval gunfire support, or gunnery training, or contribute to trade protection in confined areas like the western Caribbean.

Rysy, M-14, laid down 1931
Monju ma Ndemi, M-15, laid down 1931
Chappal Waddi, M-16, laid down 1932
Dakarkunyala, M-17, laid down 1932

Enter ship name, Enter country Enter ship type laid down 1931

Displacement:
2,544 t light; 2,700 t standard; 2,927 t normal; 3,109 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(291.49 ft / 279.53 ft) x 55.45 ft x (10.17 / 10.71 ft)
(88.85 m / 85.20 m) x 16.90 m x (3.10 / 3.26 m)

Armament:
4 - 5.91" / 150 mm 50.0 cal guns - 121.25lbs / 55.00kg shells, 250 per gun
Breech loading guns in turret on barbette mounts, 1931 Model
2 x 2-gun mounts on centreline, forward evenly spread
1 raised mount
8 - 1.97" / 50.0 mm 60.0 cal guns - 4.19lbs / 1.90kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1931 Model
4 x Twin mounts on sides, evenly spread
8 - 0.59" / 15.0 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
Machine guns in deck mounts, 1931 Model
4 x Twin mounts on sides, evenly spread
4 raised mounts
Weight of broadside 519 lbs / 236 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 181.69 ft / 55.38 m 11.81 ft / 3.60 m
Ends: Unarmoured
Main Belt covers 100% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.18" / 30 mm 2.95" / 75 mm
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -

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

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

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 9,920 shp / 7,400 Kw = 20.00 kts
Range 3,000nm at 15.00 kts
Bunker at max displacement = 409 tons

Complement:
198 - 258

Cost:
£0.782 million / $3.129 million

Distribution of weights at normal displacement:
Armament: 147 tons, 5.0%
- Guns: 147 tons, 5.0%
Armour: 536 tons, 18.3%
- Belts: 194 tons, 6.6%
- Armament: 116 tons, 4.0%
- Armour Deck: 218 tons, 7.4%
- Conning Tower: 9 tons, 0.3%
Machinery: 297 tons, 10.1%
Hull, fittings & equipment: 1,203 tons, 41.1%
Fuel, ammunition & stores: 383 tons, 13.1%
Miscellaneous weights: 360 tons, 12.3%
- Hull below water: 178 tons
- Hull above water: 85 tons
- On freeboard deck: 47 tons
- Above deck: 50 tons

Fittings:
-163 t: D-E machinery (BW)
-15 t: Enhanced hydrophone package (BW)
-85 t: Torpedo nets (AW)
-30 t: Armed spotter/scoutplane and catapult (FD)
-15 t: Fire control (AD)
-10 t: Secondary short-range wireless (AD)
-5 t: Nightfighting doodads (AD)
-17 + 20 t: Weight reserve (FD/AD)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,291 lbs / 3,761 Kg = 80.5 x 5.9 " / 150 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.8 ft / 0.8 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 90 %
- Recoil effect (Restricted arc if above 1.00): 0.34
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has low forecastle, rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.650 / 0.656
Length to Beam Ratio: 5.04 : 1
'Natural speed' for length: 16.72 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 73
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 25.00%, 19.36 ft / 5.90 m, 15.42 ft / 4.70 m
- Forward deck: 30.00%, 23.29 ft / 7.10 m, 23.29 ft / 7.10 m
- Aft deck: 35.00%, 15.42 ft / 4.70 m, 15.42 ft / 4.70 m
- Quarter deck: 10.00%, 15.42 ft / 4.70 m, 15.42 ft / 4.70 m
- Average freeboard: 18.18 ft / 5.54 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61.1%
- Above water (accommodation/working, high = better): 217.6%
Waterplane Area: 11,873 Square feet or 1,103 Square metres
Displacement factor (Displacement / loading): 150%
Structure weight / hull surface area: 78 lbs/sq ft or 383 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.62
- Overall: 1.00
Excellent 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

8,700 nm @ 10 kts, without factoring in machinery boni