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Gangut, Russian Aircraft carrier laid down 1925
Displacement:
12,866 t light; 13,262 t
standard; 14,692 t normal; 15,836 t full load
Dimensions: Length overall / water x beam x draught
745.17 ft /
705.38 ft x 70.54 ft x 22.97 ft (normal load)
227.13 m / 215.00 m x 21.50 m x 7.00 m
Armament:
8 - 5.12" /
130 mm guns (4x2 guns), 77.16lbs / 35.00kg shells, 1925 Model
Breech loading guns in deck mounts with hoists
on centreline
ends, evenly spread, all raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (8x3 guns), 1.55lbs / 0.70kg shells, 1925
Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 654 lbs /
297 kg
Shells per gun, main battery: 270
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main:
1.97" / 50 mm 383.53 ft / 116.90 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 84 % of normal length
-
Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.98" / 25 mm -
2nd: 0.98" /
25 mm - -
- Armour deck: 1.97" / 50 mm, Conning tower: 0.98" / 25 mm
Machinery:
Oil fired boilers, steam
turbines,
Geared drive, 4 shafts, 67,765 shp / 50,552 Kw = 30.00 kts
Range 8,600nm at 15.00 kts (Bunkerage = 2,574
tons)
Aviation:
64 Aircraft, 2 Elevators
Complement:
666 - 867
Cost:
£2.679 million /
$10.715 million
Distribution of weights at normal displacement:
Armament: 72 tons, 0.5 %
Armour: 1,570 tons,
10.7 %
- Belts: 317 tons, 2.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 39 tons, 0.3 %
- Armour Deck:
1,201 tons, 8.2 %
- Conning Tower: 13 tons, 0.1 %
Machinery: 2,200 tons, 15.0 %
Hull, fittings & equipment:
4,929 tons, 33.5 %
Fuel, ammunition & stores: 1,826 tons, 12.4 %
Miscellaneous weights: 4,096 tons, 27.9 %
Overall
survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20,072 lbs
/ 9,104 Kg = 299.4 x 5.1 " / 130 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height
3.3 ft / 1.0 m
Roll period: 16.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted
arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 1.45
Hull form characteristics:
Hull has a flush
deck
Block coefficient: 0.450
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 30.50 kts
Power
going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive
= bow angles forward): 20.00 degrees
Stern overhang: 32.81 ft / 10.00 m
Freeboard (% = measuring location as a percentage
of overall length):
- Stem: 19.19 ft / 5.85 m
- Forecastle (20 %): 19.19 ft / 5.85 m
- Mid (50 %): 19.19 ft /
5.85 m
- Quarterdeck (15 %): 19.19 ft / 5.85 m
- Stern: 19.19 ft / 5.85 m
- Average freeboard: 19.19 ft / 5.85
m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines,
low = better): 83.6 %
- Above water (accommodation/working, high = better): 181.0 %
Waterplane Area: 32,968 Square
feet or 3,063 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area:
100 lbs/sq ft or 490 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
-
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
Good seaboat, rides out heavy weather easily
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