Constellation, Aztec Aircraft Carrier laid down 1929
Displacement:
22,767 t light; 23,373 t standard; 25,368 t normal; 26,964 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(762.51 ft / 754.59 ft) x 82.02 ft x (26.08 / 27.38 ft)
(232.41 m / 230.00 m) x 25.00 m x (7.95 / 8.34 m)
Armament:
16 - 3.54" / 90.0 mm 55.0 cal guns - 24.01lbs / 10.89kg shells, 340 per gun
Dual purpose guns in deck mounts, 1929 Model
8 x Twin mounts on sides, evenly spread
10 - 1.57" / 40.0 mm 55.0 cal guns - 2.12lbs / 0.96kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1929 Model
10 x Single mounts on side ends, majority forward
20 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,500 per gun
Anti-air guns in deck and hoist mounts, 1929 Model
10 x Twin mounts on sides, evenly spread
Weight of broadside 422 lbs / 192 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 603.67 ft / 184.00 m 13.12 ft / 4.00 m
Ends: 1.97" / 50 mm 150.89 ft / 45.99 m 11.48 ft / 3.50 m
Main Belt covers 123 % of normal length
- Torpedo Bulkhead - Additional damage containing bulkheads:
1.57" / 40 mm 603.67 ft / 184.00 m 24.08 ft / 7.34 m
Beam between torpedo bulkheads 59.06 ft / 18.00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.76" / 70 mm 1.97" / 50 mm -
2nd: 0.98" / 25 mm 0.98" / 25 mm -
3rd: 0.98" / 25 mm - 0.98" / 25 mm
- Armoured deck - multiple decks:
For and Aft decks: 2.76" / 70 mm
Forecastle: 1.18" / 30 mm Quarter deck: 1.18" / 30 mm
- Conning towers: Forward 3.15" / 80 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 140,996 shp / 105,183 Kw = 32.00 kts
Range 10,000nm at 14.00 kts
Bunker at max displacement = 3,591 tons
Complement:
1,004 - 1,306
Cost:
£5.723 million / $22.891 million
Distribution of weights at normal displacement:
Armament: 90 tons, 0.4 %
- Guns: 90 tons, 0.4 %
Armour: 4,307 tons, 17.0 %
- Belts: 1,124 tons, 4.4 %
- Torpedo bulkhead: 847 tons, 3.3 %
- Armament: 161 tons, 0.6 %
- Armour Deck: 2,116 tons, 8.3 %
- Conning Tower: 59 tons, 0.2 %
Machinery: 4,330 tons, 17.1 %
Hull, fittings & equipment: 8,067 tons, 31.8 %
Fuel, ammunition & stores: 2,601 tons, 10.3 %
Miscellaneous weights: 5,973 tons, 23.5 %
- Hull below water: 2,900 tons
- Hull above water: 2,948 tons
- On freeboard deck: 50 tons
- Above deck: 75 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
43,920 lbs / 19,922 Kg = 1,974.5 x 3.5 " / 90 mm shells or 5.3 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 6.5 ft / 2.0 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.80
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.550 / 0.557
Length to Beam Ratio: 9.20 : 1
'Natural speed' for length: 27.47 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 12.00 %, 29.53 ft / 9.00 m, 29.53 ft / 9.00 m
- Forward deck: 40.00 %, 29.53 ft / 9.00 m, 29.53 ft / 9.00 m
- Aft deck: 40.00 %, 29.53 ft / 9.00 m, 29.53 ft / 9.00 m
- Quarter deck: 8.00 %, 29.53 ft / 9.00 m, 29.53 ft / 9.00 m
- Average freeboard: 29.53 ft / 9.00 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 114.5 %
- Above water (accommodation/working, high = better): 242.0 %
Waterplane Area: 43,194 Square feet or 4,013 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 115 lbs/sq ft or 559 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.58
- Overall: 1.00
Cramped 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
13t - 1918 FC
25t - NF Devices
25t - LR Radio
10t - Additional SR Radio
5700t - 60 x Aircraft (Provision for heavier tech expansion)
50t BW - Additional Pumps
50t - On Deck Firefighting Equipment
100t AW - Hangar Firefighting Equipment