V2 Donald R. Johnson
Now with 5x2 12". Hope now there will be more place for machinery and boilers.
DNS Donald R. Johnson, Antara battleship laid down 1934
Displacement:
29 765 t light; 31 449 t standard; 32 885 t normal; 34 035 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(583,99 ft / 577,43 ft) x 98,43 ft x (31,50 / 32,43 ft)
(178,00 m / 176,00 m) x 30,00 m x (9,60 / 9,88 m)
Armament:
12 - 14,02" / 356 mm 50,0 cal guns - 1 457,37lbs / 661,05kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1934 Model
2 x Twin mounts on centreline, forward deck forward
1 raised mount - superfiring
4 x Twin mounts on centreline, aft evenly spread
2 raised mounts
12 - 5,98" / 152 mm 50,0 cal guns - 113,45lbs / 51,46kg shells, 200 per gun
Breech loading guns in casemate mounts, 1934 Model
6 x Single mounts on sides, forward deck aft
6 hull mounts in casemates- Limited use in heavy seas
6 x Single mounts on sides, aft deck forward
6 hull mounts in casemates- Limited use in heavy seas
Weight of broadside 18 850 lbs / 8 550 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 434,71 ft / 132,50 m 16,24 ft / 4,95 m
Ends: 5,00" / 127 mm 100,07 ft / 30,50 m 12,30 ft / 3,75 m
42,65 ft / 13,00 m Unarmoured ends
Main Belt covers 116% of normal length
- Torpedo Bulkhead - Additional damage containing bulkheads:
5,00" / 127 mm 344,49 ft / 105,00 m 13,12 ft / 4,00 m
Beam between torpedo bulkheads 78,74 ft / 24,00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15,0" / 381 mm 12,0" / 305 mm 12,0" / 305 mm
2nd: 5,00" / 127 mm 5,00" / 127 mm -
- Armoured deck - multiple decks:
For and Aft decks: 4,00" / 102 mm
Forecastle: 4,00" / 102 mm Quarter deck: 4,00" / 102 mm
- Conning towers: Forward 15,98" / 406 mm, Aft 15,98" / 406 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 63 944 shp / 47 702 Kw = 24,00 kts
Range 9 000nm at 11,00 kts
Bunker at max displacement = 2 586 tons (60% coal)
Complement:
1 220 - 1 587
Cost:
£15,698 million / $62,793 million
Distribution of weights at normal displacement:
Armament: 3 524 tons, 10,7%
- Guns: 3 524 tons, 10,7%
Armour: 13 033 tons, 39,6%
- Belts: 3 873 tons, 11,8%
- Torpedo bulkhead: 836 tons, 2,5%
- Armament: 4 387 tons, 13,3%
- Armour Deck: 3 230 tons, 9,8%
- Conning Towers: 707 tons, 2,1%
Machinery: 1 946 tons, 5,9%
Hull, fittings & equipment: 11 262 tons, 34,2%
Fuel, ammunition & stores: 3 120 tons, 9,5%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
43 370 lbs / 19 672 Kg = 31,5 x 14,0 " / 356 mm shells or 7,0 torpedoes
Stability (Unstable if below 1.00): 1,08
Metacentric height 5,7 ft / 1,7 m
Roll period: 17,4 seconds
Steadiness - As gun platform (Average = 50 %): 47 %
- Recoil effect (Restricted arc if above 1.00): 0,85
Seaboat quality (Average = 1.00): 1,01
Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0,643 / 0,646
Length to Beam Ratio: 5,87 : 1
'Natural speed' for length: 24,03 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 10,00%, 21,16 ft / 6,45 m, 21,16 ft / 6,45 m
- Forward deck: 20,00%, 21,16 ft / 6,45 m, 21,16 ft / 6,45 m
- Aft deck: 60,00%, 21,16 ft / 6,45 m, 21,16 ft / 6,45 m
- Quarter deck: 10,00%, 21,16 ft / 6,45 m, 21,16 ft / 6,45 m
- Average freeboard: 21,16 ft / 6,45 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88,4%
- Above water (accommodation/working, high = better): 142,9%
Waterplane Area: 43 259 Square feet or 4 019 Square metres
Displacement factor (Displacement / loading): 94%
Structure weight / hull surface area: 208 lbs/sq ft or 1 015 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,94
- Longitudinal: 1,82
- Overall: 1,00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room