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Fantasy Fleet Page
Raven class Fleet Submarine
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The Raven class conducts the long-range sea denial mission and is capable of accompanying the Fleet on long-range operations.

Raven class, French Fleet Submarine laid down 1909
Displacement:
 750 t light; 771 t standard; 1,002 t normal; 1,183 t full load
   Loading submergence 80 tons/feet
Dimensions:
 180.45 ft x 24.93 ft x 15.91 ft (normal load)
 55.00 m x 7.60 m x 4.85 m
Armament:
 1 - 2.95" / 75 mm guns
   Weight of broadside 13 lbs / 6 kg
 6 - 17.7" / 450 mm submerged torpedo tubes (4 fwd, 2 aft)
        Operational depth - 102m/335 ft
        Emergency depth - 163m/536 ft
        crush depth - 255/838 ft
Machinery:
 Diesel Internal combustion generators plus batteries,
 Electric motors, 1 shaft, 1,655 shp / 1,235 Kw = 15.00 kts
 Range 10,000nm at 10.00 kts
Complement:
 44 - 57
Cost:
 0.038 million / $0.152 million
Distribution of weights at normal displacement:
 Armament: 2 tons, 0.2 %
 Machinery: 75 tons, 7.5 %
 Hull, fittings & equipment: 508 tons, 50.7 %
 Fuel, ammunition & stores: 253 tons, 25.2 %
 Miscellaneous weights: 165 tons, 16.5 %
 Metacentric height 0.8
Remarks:
 Hull space for machinery, storage & compartmentation is adequate
 Room for accommodation & workspaces is extremely poor
 Ship has quick, lively roll, not a steady gun platform
 Caution: Lacks seaworthiness - very limited seakeeping ability
Estimated overall survivability and seakeeping ability:
 Relative margin of stability: 1.17
 Shellfire needed to sink: 637 lbs / 289 Kg = 49.5 x 3.0 " / 75 mm shells
   (Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
 Torpedoes needed to sink: 0.3
   (Approx number of typical torpedo hits needed to sink ship)
 Relative steadiness as gun platform: 0 %
   (Average = 50 %)
 Relative rocking effect from firing to beam: 0.00
 Relative quality as seaboat: 0.00
Hull form characteristics:
 Block coefficient: 0.490
 Sharpness coefficient: 0.37
 Hull speed coefficient 'M': 5.51
 'Natural speed' for length: 13.43 kts
 Power going to wave formation at top speed: 50 %
 Trim: 50
   (Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)
Estimated hull characteristics & strength:
 Underwater volume absorbed by magazines and engineering spaces: 84.9 %
 Relative accommodation and working space: 0.0 %
   (Average = 100%)
 Displacement factor: 305 %
   (Displacement relative to loading factors)
 Relative cross-sectional hull strength: 3.37
   (Structure weight / hull surface area: 115 lbs / square foot or 562 Kg / square metre)
 Relative longitudinal hull strength: 3.34
   (for 0.00 ft / 0.00 m average freeboard, freeboard adjustment -9.56 ft)
 Relative composite hull strength: 3.35


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