The original design resimmed with a 180-' beam (200' with bulges)...
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Superb, RN Super Battleship laid down 1939
Displacement:
136,565 t light; 142,062 t standard; 146,111 t normal; 149,350 t full load
Dimensions: Length overall / water x beam x draught
1,195.35 ft / 1,180.00 ft x 180.00 ft (Bulges 200.00 ft) x 31.00 ft (normal load)
364.34 m / 359.66 m x 54.86 m (Bulges 60.96 m) x 9.45 m
Armament:
8 - 20.00" / 508 mm guns (4x2 guns), 4,000.00lbs / 1,814.37kg shells, 1939 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 14.00" / 356 mm guns (8x2 guns), 1,372.00lbs / 622.33kg shells, 1939 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
24 - 5.25" / 133 mm guns (12x2 guns), 72.35lbs / 32.82kg shells, 1939 Model
Dual purpose guns in turrets (on barbettes)
on side, evenly spread, all raised mounts
104 - 1.57" / 40.0 mm guns (13x8 guns), 1.95lbs / 0.88kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
72 - 0.50" / 12.7 mm guns (18x4 guns), 0.06lbs / 0.03kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 55,896 lbs / 25,354 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 500.00 ft / 152.40 m 20.00 ft / 6.10 m
Ends: 8.00" / 203 mm 200.00 ft / 60.96 m 20.00 ft / 6.10 m
480.00 ft / 146.30 m Unarmoured ends
Main Belt covers 65 % of normal length
- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 800.00 ft / 243.84 m 25.00 ft / 7.62 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 12.0" / 305 mm 16.0" / 406 mm
2nd: 12.0" / 305 mm 9.00" / 229 mm 12.0" / 305 mm
3rd: 2.00" / 51 mm 1.50" / 38 mm 2.00" / 51 mm
4th: 1.00" / 25 mm - -
- Armour deck: 8.00" / 203 mm, Conning tower: 16.00" / 406 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 224,055 shp / 167,145 Kw = 27.00 kts
Range 6,000nm at 14.00 kts
Bunker at max displacement = 7,288 tons
Complement:
3,736 - 4,857
Cost:
£66.895 million / $267.580 million
Distribution of weights at normal displacement:
Armament: 6,987 tons, 4.8 %
Armour: 55,410 tons, 37.9 %
- Belts: 9,970 tons, 6.8 %
- Torpedo bulkhead: 2,220 tons, 1.5 %
- Armament: 17,090 tons, 11.7 %
- Armour Deck: 25,173 tons, 17.2 %
- Conning Tower: 956 tons, 0.7 %
Machinery: 6,062 tons, 4.1 %
Hull, fittings & equipment: 67,757 tons, 46.4 %
Fuel, ammunition & stores: 9,546 tons, 6.5 %
Miscellaneous weights: 350 tons, 0.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
371,071 lbs / 168,315 Kg = 92.8 x 20.0 " / 508 mm shells or 96.1 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 18.6 ft / 5.7 m
Roll period: 19.5 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.32
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.699
Length to Beam Ratio: 5.90 : 1
'Natural speed' for length: 34.35 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 38.00 ft / 11.58 m
- Forecastle (20 %): 38.00 ft / 11.58 m
- Mid (50 %): 38.00 ft / 11.58 m
- Quarterdeck (15 %): 38.00 ft / 11.58 m
- Stern: 38.00 ft / 11.58 m
- Average freeboard: 38.00 ft / 11.58 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 56.3 %
- Above water (accommodation/working, high = better): 329.5 %
Waterplane Area: 170,091 Square feet or 15,802 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 312 lbs/sq ft or 1,522 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.06
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
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The first problem was the warning "too much power for number of shafts", thus the reduction in speed to 27 knots (I could resim the design with 5 shafts if you're interested). Even then BC was high, I removed the upper belt and thinned the main belt (although I did raise both main and end belts in compensation) plus slightly thinned turret armor. I still ended up with a BC of 0.7 which I can't see being reduced much further given the stats we have. I'm still thinking that 1943 or 1945 engines will help somewhat, I'll try that modification and see what happens...
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