WesWorld

Quoted

[SIZE=3]Zephir II, French Sloop laid down 1942[/SIZE]

Displacement:
1,150 t light; 1,240 t standard; 1,530 t normal; 1,762 t full load

Dimensions: Length overall / water x beam x draught
328.64 ft / 318.24 ft x 33.79 ft x 10.01 ft (normal load)
100.17 m / 97.00 m x 10.30 m x 3.05 m

Armament:
6 - 4.72" / 120 mm guns (3x2 guns), 52.72lbs / 23.92kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 1.57" / 40.0 mm guns (1x4 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
4 - 0.55" / 14.0 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1942 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 340 lbs / 154 kg
Shells per gun, main battery: 300
4 - 21.7" / 550 mm above water torpedoes

Armour:
- 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 -
3rd: 0.98" / 25 mm 0.20" / 5 mm -

- Conning tower: 1.18" / 30 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 9,987 shp / 7,451 Kw = 23.55 kts
Range 4,750nm at 18.00 kts
Bunker at max displacement = 523 tons

Complement:
122 - 159

Cost:
£0.716 million / $2.863 million

Distribution of weights at normal displacement:
Armament: 43 tons, 2.8 %
Armour: 16 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 261 tons, 17.1 %
Hull, fittings & equipment: 716 tons, 46.8 %
Fuel, ammunition & stores: 380 tons, 24.8 %
Miscellaneous weights: 115 tons, 7.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,463 lbs / 1,117 Kg = 46.7 x 4.7 " / 120 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.52

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.498
Length to Beam Ratio: 9.42 : 1
'Natural speed' for length: 17.84 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.31 ft / 6.80 m
- Forecastle (25 %): 17.06 ft / 5.20 m
- Mid (50 %): 17.06 ft / 5.20 m (8.86 ft / 2.70 m aft of break)
- Quarterdeck (15 %): 8.86 ft / 2.70 m
- Stern: 10.17 ft / 3.10 m
- Average freeboard: 13.58 ft / 4.14 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.6 %
- Above water (accommodation/working, high = better): 99.7 %
Waterplane Area: 7,150 Square feet or 664 Square metres
Displacement factor (Displacement / loading): 154 %
Structure weight / hull surface area: 57 lbs/sq ft or 276 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.54
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Quoted

Originally posted by BruceDuncan
Overall the design looks good on its technical merits - the only technical point that looks out of place is the "14mm 1942 Model Breech loading guns in deck mounts". I presume these would be some species of antiaircraft or machinegun.

Quoted

Originally posted by BruceDuncan
Tactically I am unsure about the design. The miscellaneous weight implies an AS outfit of unspecified size - which would make sense for a ocean escort. The inclusion of four torpedo tubes strikes me as unusual, given the relatively slow speed of the ship - @24 knots.

What is French doctrine for the use of such ships? Is this meant to be a 'high-end' vessel of a 'high/low' mix of escort types?

Quoted

[SIZE=3]Montebello, French Navire de débarquement de véhicules laid down 1935[/SIZE]

Displacement:
5,275 t light; 5,491 t standard; 8,138 t normal; 10,255 t full load

Dimensions: Length overall / water x beam x draught
463.66 ft / 459.32 ft x 52.49 ft x 19.69 ft (normal load)
141.32 m / 140.00 m x 16.00 m x 6.00 m

Armament:
4 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1935 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1935 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 153 lbs / 70 kg
Shells per gun, main battery: 550

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 6,043 shp / 4,508 Kw = 16.00 kts
Range 25,000nm at 15.00 kts
Bunker at max displacement = 4,764 tons

Complement:
427 - 556

Cost:
£1.144 million / $4.577 million

Distribution of weights at normal displacement:
Armament: 19 tons, 0.2 %
Machinery: 172 tons, 2.1 %
Hull, fittings & equipment: 2,035 tons, 25.0 %
Fuel, ammunition & stores: 2,863 tons, 35.2 %
Miscellaneous weights: 3,050 tons, 37.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16,421 lbs / 7,449 Kg = 538.2 x 3.9 " / 100 mm shells or 2.9 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.83

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 21.43 kts
Power going to wave formation at top speed: 31 %
Trim (Max stability = 0, Max steadiness = 100): 28
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 16.88 ft / 5.15 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 51.0 %
- Above water (accommodation/working, high = better): 122.4 %
Waterplane Area: 17,251 Square feet or 1,603 Square metres
Displacement factor (Displacement / loading): 229 %
Structure weight / hull surface area: 73 lbs/sq ft or 355 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.35
- Overall: 1.02
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weights:
- 550 tons for vehicles (including tanks, trucks, armoured cars, etc)
- 300 tons for four large cranes (75t each)
- 50 tons for disembarkment ramp
- 220 tons for 4x EDA-55 vehicle landing craft
- 52 tons for 4x EA-13 landing craft
- 1,200 tons for six hundred troops
- 100 tons for vehicle fuel, ammo, etc
- 100 tons for vehicle repair shop
- 50 tons for shipboard electronics, communications, command, and control gear
- 428 tons for cargo

Notes:
- 2439 tons of deep-stowed cargo/ballast simmed as bunker fuel. Actual range is 12,000nm at 15.00 kts (bunker at max displacement = 2,325 tons)

Quoted

Originally posted by BruceDuncan
A rather interesting design, capable of multiple uses. It offers far more flexibility than the existing Caiman class landing ships.

Quoted

Originally posted by BruceDuncan
I think that the recently chronicled Transall amphibious carriers are a natural match for such a ship, but the provision of landing craft and cranes allows more conventional landings to be carried out. It should be a useful prototype - do you expect to build the design in quantity?

Quoted

[SIZE=3]Sans Souci-class, French Small Seaplane Tenders laid down 1941[/SIZE]

Displacement:
1,238 t light; 1,277 t standard; 1,523 t normal; 1,720 t full load

Dimensions: Length overall / water x beam x draught
328.08 ft / 314.96 ft x 38.39 ft x 10.50 ft (normal load)
100.00 m / 96.00 m x 11.70 m x 3.20 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1941 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 22 lbs / 10 kg
Shells per gun, main battery: 550

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 3,469 shp / 2,588 Kw = 18.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 444 tons

Complement:
121 - 158

Cost:
£0.361 million / $1.445 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.2 %
Machinery: 92 tons, 6.0 %
Hull, fittings & equipment: 793 tons, 52.1 %
Fuel, ammunition & stores: 285 tons, 18.7 %
Miscellaneous weights: 350 tons, 23.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,666 lbs / 2,117 Kg = 362.5 x 3.0 " / 75 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 1.3 ft / 0.4 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.420
Length to Beam Ratio: 8.21 : 1
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.94 ft / 1.20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (50 %): 16.40 ft / 5.00 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 13.83 ft / 4.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 47.6 %
- Above water (accommodation/working, high = better): 157.2 %
Waterplane Area: 7,537 Square feet or 700 Square metres
Displacement factor (Displacement / loading): 274 %
Structure weight / hull surface area: 64 lbs/sq ft or 314 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.23
- Longitudinal: 2.89
- Overall: 1.34
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Quoted

[SIZE=3]Prairial, French Experimental Training Vessel laid down 1942[/SIZE]

Displacement:
370 t light; 380 t standard; 494 t normal; 586 t full load

Dimensions: Length overall / water x beam x draught
150.70 ft / 147.64 ft x 36.09 ft x 5.41 ft (normal load)
45.93 m / 45.00 m x 11.00 m x 1.65 m

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 543 shp / 405 Kw = 12.50 kts
Range 8,500nm at 12.50 kts
Bunker at max displacement = 206 tons

Complement:
52 - 68

Cost:
£0.095 million / $0.380 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 14 tons, 2.9 %
Hull, fittings & equipment: 206 tons, 41.6 %
Fuel, ammunition & stores: 124 tons, 25.2 %
Miscellaneous weights: 150 tons, 30.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,755 lbs / 796 Kg = 16.2 x 6 " / 152 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 1.6 ft / 0.5 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.34

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.600
Length to Beam Ratio: 4.09 : 1
'Natural speed' for length: 14.89 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.98 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.81 ft / 3.60 m
- Forecastle (20 %): 11.48 ft / 3.50 m (7.55 ft / 2.30 m aft of break)
- Mid (50 %): 7.55 ft / 2.30 m
- Quarterdeck (15 %): 7.55 ft / 2.30 m
- Stern: 7.55 ft / 2.30 m
- Average freeboard: 8.36 ft / 2.55 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.6 %
- Above water (accommodation/working, high = better): 112.3 %
Waterplane Area: 4,061 Square feet or 377 Square metres
Displacement factor (Displacement / loading): 277 %
Structure weight / hull surface area: 42 lbs/sq ft or 203 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.14
- Longitudinal: 3.08
- Overall: 1.26
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 20 tons for Teledetection Array
- 130 tons for helicopter landing deck

Quoted

Breakdown of Miscellaneous Weights:
- 20 tons for Teledetection Array
- 130 tons for helicopter landing deck

Quoted

Originally posted by Hood
Agreed its probably a good idea. Although this ship won't have the funnel gases and big structure most warships will have for the really turbulent air it will give good indications of how to cope with rolling and pitching decks etc.

Quoted

Originally posted by Rooijen10

Quoted

Breakdown of Miscellaneous Weights:
- 20 tons for Teledetection Array
- 130 tons for helicopter landing deck

... and what about the helicopter/gyroplane itself? Or do you consider that covered by the "helicopter landing deck" weight?

Quoted

Originally posted by Rooijen10
Considering the HS you got left, I assume that the transom is there for visual style only because of the hull it is based on, right?

Quoted

[SIZE=3]CDIC-200, French Landing Craft laid down 1941[/SIZE]
[SIZE=1]CDIC - Chalands de débarquement d'infanterie et de chars[/SIZE]

Displacement:
185 t light; 191 t standard; 200 t normal; 207 t full load

Dimensions: Length overall / water x beam x draught
81.79 ft / 80.05 ft x 23.95 ft x 5.25 ft (normal load)
24.93 m / 24.40 m x 7.30 m x 1.60 m

Armament:
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Machine guns in deck mounts
on centreline ends, evenly spread, all raised mounts
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 1 lbs / 0 kg
Shells per gun, main battery: 2,500

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 106 shp / 79 Kw = 9.00 kts
Range 2,200nm at 9.00 kts
Bunker at max displacement = 16 tons

Complement:
26 - 34

Cost:
£0.043 million / $0.173 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Machinery: 3 tons, 1.4 %
Hull, fittings & equipment: 102 tons, 51.1 %
Fuel, ammunition & stores: 15 tons, 7.4 %
Miscellaneous weights: 80 tons, 40.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
520 lbs / 236 Kg = 2,129.3 x 0.8 " / 20 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.52

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.696
Length to Beam Ratio: 3.34 : 1
'Natural speed' for length: 11.07 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 9.84 ft / 3.00 m
- Forecastle (25 %): 8.20 ft / 2.50 m (6.56 ft / 2.00 m aft of break)
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (15 %): 6.56 ft / 2.00 m
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 7.14 ft / 2.18 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 50.6 %
- Above water (accommodation/working, high = better): 76.8 %
Waterplane Area: 1,598 Square feet or 148 Square metres
Displacement factor (Displacement / loading): 231 %
Structure weight / hull surface area: 48 lbs/sq ft or 234 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.69
- Longitudinal: 10.40
- Overall: 2.03
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Quoted

The mission profile is that the helicopters are land-based, not based aboard the ship itself.

Quoted

Originally posted by Rooijen10

Quoted

The mission profile is that the helicopters are land-based, not based aboard the ship itself.

That is true, but when it is on the ship, the weight is on the ship and not at some land base. Not that it would be causing any problems with a hull strength like that...

Considering what you said about the weight of the landing pad, I would say it's covered by that 120 tons.

Quoted

Originally posted by Brockpaine
This is a design proposal based on the historical French Sans Souci-class seaplane tenders, which were completed in 1940... for the Germans. The Germans used them as gunboats, and they all survived the war, and returned to French service as survey vessels.

Quoted

[SIZE=3]Sans Souci-class, French Small Seaplane Tenders laid down 1941[/SIZE]

Displacement:
1,238 t light; 1,277 t standard; 1,523 t normal; 1,720 t full load

Dimensions: Length overall / water x beam x draught
328.08 ft / 314.96 ft x 38.39 ft x 10.50 ft (normal load)
100.00 m / 96.00 m x 11.70 m x 3.20 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1941 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 22 lbs / 10 kg
Shells per gun, main battery: 550

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 3,469 shp / 2,588 Kw = 18.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 444 tons

Complement:
121 - 158

Cost:
£0.361 million / $1.445 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.2 %
Machinery: 92 tons, 6.0 %
Hull, fittings & equipment: 793 tons, 52.1 %
Fuel, ammunition & stores: 285 tons, 18.7 %
Miscellaneous weights: 350 tons, 23.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,666 lbs / 2,117 Kg = 362.5 x 3.0 " / 75 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 1.3 ft / 0.4 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.420
Length to Beam Ratio: 8.21 : 1
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.94 ft / 1.20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (50 %): 16.40 ft / 5.00 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 13.83 ft / 4.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 47.6 %
- Above water (accommodation/working, high = better): 157.2 %
Waterplane Area: 7,537 Square feet or 700 Square metres
Displacement factor (Displacement / loading): 274 %
Structure weight / hull surface area: 64 lbs/sq ft or 314 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.23
- Longitudinal: 2.89
- Overall: 1.34
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Quoted

[SIZE=3]Le Fantasque-class, French Contre-Torpillieurs laid down 1933[/SIZE]

Displacement:
2,852 t light; 2,999 t standard; 3,449 t normal; 3,809 t full load

Dimensions: Length overall / water x beam x draught
457.68 ft / 457.68 ft x 40.68 ft x 17.06 ft (normal load)
139.50 m / 139.50 m x 12.40 m x 5.20 m

Armament:
6 - 5.43" / 138 mm guns (3x2 guns), 89.51lbs / 40.60kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 1.57" / 40.0 mm guns (1x4 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in deck mount
on side amidships, all raised guns
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1933 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 553 lbs / 251 kg
Shells per gun, main battery: 250
12 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.50" / 13 mm 457.68 ft / 139.50 m 8.20 ft / 2.50 m
Ends: Unarmoured
Main Belt covers 154 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm -
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -

- Conning tower: 2.36" / 60 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,419 shp / 46,565 Kw = 36.00 kts
Range 4,700nm at 18.00 kts
Bunker at max displacement = 810 tons

Complement:
224 - 292

Cost:
£1.841 million / $7.363 million

Distribution of weights at normal displacement:
Armament: 62 tons, 1.8 %
Armour: 113 tons, 3.3 %
- Belts: 69 tons, 2.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 32 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 12 tons, 0.3 %
Machinery: 1,696 tons, 49.2 %
Hull, fittings & equipment: 906 tons, 26.3 %
Fuel, ammunition & stores: 597 tons, 17.3 %
Miscellaneous weights: 75 tons, 2.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
784 lbs / 355 Kg = 9.8 x 5.4 " / 138 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.8 ft / 0.6 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.380
Length to Beam Ratio: 11.25 : 1
'Natural speed' for length: 24.58 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.53 ft / 9.00 m
- Forecastle (25 %): 19.69 ft / 6.00 m
- Mid (49 %): 19.69 ft / 6.00 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 15.65 ft / 4.77 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 176.0 %
- Above water (accommodation/working, high = better): 72.8 %
Waterplane Area: 11,779 Square feet or 1,094 Square metres
Displacement factor (Displacement / loading): 80 %
Structure weight / hull surface area: 42 lbs/sq ft or 204 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.18
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
- 5 tons for hydrophones and ASW detection gear
- 15 tons for depth charges (70x420-lb bombs) or mines (16x2000-lb mines)
- 25 tons for twelve 42G reload torpedoes
- 30 tons for Type 41 electronics suite
Total miscellaneous weight: 75 tons

Level 3 Refit: 15% light tonnage.
- Add radar and miscellaneous weight
- Replace 138mm guns with dual purpose
- Thin external armour belts