WesWorld

Raven class, 1909

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

Eagle class, French Fleet Submarine laid down 1920

Displacement:
1,009 t light; 1,036 t standard; 1,200 t normal; 1,327 t full load
Loading submergence 89 tons/feet

Dimensions:
196.85 ft x 26.25 ft x 17.22 ft (normal load)
60.00 m x 8.00 m x 5.25 m

Armament:
1 - 3.94" / 100 mm guns
1 - 1.57" / 40 mm guns
Weight of broadside 32 lbs / 15 kg
6 - 21.0" / 533 mm submerged torpedo tubes (4 tubes fwd, 2 tubes aft)

Operational depth - 121m/398 ft
Emergency depth - 194m/637 ft
Crush depth - 303m/995 ft

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 1 shaft, 1,786 shp / 1,333 Kw = 15.00 kts
Range 10,000nm at 10.00 kts

Complement:
50 - 66

Cost:
£0.112 million / $0.449 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.3 %
Machinery: 62 tons, 5.2 %
Hull, fittings & equipment: 742 tons, 61.9 %
Fuel, ammunition & stores: 191 tons, 15.9 %
Miscellaneous weights: 200 tons, 16.7 %

Metacentric height 0.9

Remarks:
Hull space for machinery, storage & compartmentation is excellent
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: 1.16
Shellfire needed to sink: 850 lbs / 385 Kg = 27.8 x 3.9 " / 100 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: 0.472
Sharpness coefficient: 0.35
Hull speed coefficient 'M': 5.66
'Natural speed' for length: 14.03 kts
Power going to wave formation at top speed: 47 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 76.1 %
Relative accommodation and working space: 0.0 %
(Average = 100%)
Displacement factor: 336 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 3.98
(Structure weight / hull surface area: 147 lbs / square foot or 717 Kg / square metre)

Relative longitudinal hull strength: 4.01
(for 0.00 ft / 0.00 m average freeboard, freeboard adjustment -9.91 ft)
Relative composite hull strength: 3.98

Protee-class Submarine

Date: 1939
Ocean
Armament 1x 100mm
ElecHP: 3400hp
DieselHP: 5600hp
Crew: 69
wt fuel&batts: 550t
Light Displacement 1166t
Loaded Displacement 1441t
Full Displacement 1673t
Reserve buoyancy: 14%
Max Surf Speed: 18 knots
Max Sub Speed: 10.6 knots

Length: 77.0m
Beam: 8.2m
Draft: 5.3m
Crush depth: 250m
#TT 6 x 550mm (6 bow, 18 reloads)
Tons Oil: 275.0t
Tons Battery: 275.0t
Cruise speed: 12 knots
Submerged speed: 6 knots

Surface Range: 9887nm@12 knots
Submerged Range: 74nm@6 knots

Units in Class:
Protée-class
SS Protée
SS Clorinde
SS Cornélie
SS Achéron
SS Achille
SS Actéon
SS Ajax
SS Archimède
SS Argo
SS Africaine
SS Astrée
SS Aurore
SS Andromède
SS Antigone
SS Andromaque
SS Artémis
SS Armide
SS Agosta
SS Sfax
SS Casabianca
SS Caroline
SS Ouessant
SS Galétée
SS Minerve