Sinop class, Russian Aircraft carrier laid down 1927
Displacement: 13,067 t light; 13,434
t standard; 15,749 t normal; 17,601 t full load
Dimensions: Length overall / water x beam x draught 717.56 ft
/ 672.57 ft x 77.10 ft x 23.62 ft (normal load) 218.71 m / 205.00 m x 23.50 m x 7.20 m
Armament: 8 - 5.12"
/ 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1927 Model Breech loading guns in deck mounts with hoists on
side, all amidships, all raised mounts - superfiring 32 - 1.46" / 37.0 mm guns (8x4 guns), 1.55lbs / 0.70kg shells, 1927
Model Anti-aircraft guns in deck mounts with hoists on side, evenly spread, all raised mounts Weight of broadside
586 lbs / 266 kg Shells per gun, main battery: 150
Aviation: 56 aircraft, 16 unassembled aircraft, 2 elevators
Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 1.97" / 50 mm 389.60 ft / 118.75 m 9.51 ft /
2.90 m Ends: Unarmoured Main Belt covers 89 % of normal length
- Gun armour: Face (max) Other gunhouse (avg)
Barbette/hoist (max) Main: 0.98" / 25 mm 0.20" / 5 mm - 2nd: 0.98" / 25 mm 0.20" / 5 mm -
- Armour deck: 1.97"
/ 50 mm, Conning tower: 1.97" / 50 mm
Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts,
93,124 shp / 69,470 Kw = 31.00 kts Range 13,500nm at 15.00 kts (Bunkerage = 4,168 tons)
Complement: 702 -
913
Cost: £3.383 million / $13.533 million
Distribution of weights at normal displacement: Armament:
73 tons, 0.5 % Armour: 1,564 tons, 9.9 % - Belts: 313 tons, 2.0 % - Torpedo bulkhead: 0 tons, 0.0 % - Armament:
20 tons, 0.1 % - Armour Deck: 1,205 tons, 7.6 % - Conning Tower: 27 tons, 0.2 % Machinery: 2,940 tons, 18.7 %
Hull, fittings & equipment: 4,955 tons, 31.5 % Fuel, ammunition & stores: 2,682 tons, 17.0 % Miscellaneous
weights: 3,536 tons, 22.5 %
Overall survivability and seakeeping ability: Survivability (Non-critical penetrating
hits needed to sink ship): 18,604 lbs / 8,438 Kg = 277.5 x 5.1 " / 130 mm shells or 2.3 torpedoes Stability (Unstable
if below 1.00): 1.12 Metacentric height 4.2 ft / 1.3 m Roll period: 15.9 seconds Steadiness - As gun platform
(Average = 50 %): 70 % - Recoil effect (Restricted arc if above 1.00): 0.07 Seaboat quality (Average = 1.00): 1.20
Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.450 Length to Beam Ratio:
8.72 : 1 'Natural speed' for length: 25.93 kts Power going to wave formation at top speed: 51 % Trim (Max stability
= 0, Max steadiness = 100): 58 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: 33.46 ft / 10.20 m - Forecastle
(20 %): 23.46 ft / 7.15 m - Mid (50 %): 23.46 ft / 7.15 m (10.83 ft / 3.30 m aft of break) - Quarterdeck (15 %): 10.83
ft / 3.30 m - Stern: 10.83 ft / 3.30 m - Average freeboard: 17.94 ft / 5.47 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.1 % - Above water (accommodation/working, high = better):
149.5 % Waterplane Area: 33,077 Square feet or 3,073 Square metres Displacement factor (Displacement / loading): 136
% Structure weight / hull surface area: 103 lbs/sq ft or 504 Kg/sq metre Hull strength (Relative): - Cross-sectional:
1.00 - Longitudinal: 1.01 - 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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