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Fantasy Fleet Page
Sinop class aircraft carrier
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Aircraft carriers Sinop and Petropavlovsk will greatly strengthen Russian naval aviation.

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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