WesWorld

DeGrasse class Light Cruiser - 1919
- De Grasse (converted to minelaying cruiser, 1940)
- Dupleix (converted to minelaying cruiser, 1940)
- Edgard Quinet (scrapped, 1942)
- Waldeck Rousseau (scrapped, 1942)
- Georges Leygues (converted to minelaying cruiser, 1940)
- Jean de Vienne (converted to minelaying cruiser, 1940)
- Ernest Renan (scrapped, 1942)
- Jules Michelet (scrapped, 1942)

Roland class Light Cruiser - 1924
Roland subclass
- Roland
- Olifant
- Turpin
- Roncevaux
Oliver subclass
- Oliver
- Durendal

Emile Bertin class Light Cruiser - 1928 (As reconstructed 1944)
- Emile Bertin
- Primauguet
- Montcalm
- Tourville

Volta class Light Cruiser - 1937
- Volta
- Rhin
- Bruix (ex-Chari)
- Fier

Lafayette class Light Cruiser - 1947
- Lafayette: laid down in La Rochelle January 1947, completed June 1948.
- Latouche-Tréville: laid down in La Rochelle January 1947, completed June 1948.
- La Galissonniere: laid down in Marseilles January 1948, completed June 1949.
- Georges Leygyes: laid down in Marseilles January 1948, completed June 1949.
- De Grasse: laid down in Marseilles January 1949, completed June 1950.
- Dupleix: laid down in Marseilles January 1949, completed June 1950.
- du Chayla: laid down in La Rochelle January 1949, completed June 1950.
- Jean de Vienne: laid down in La Rochelle January 1949, completed June 1950.

Roland-class, French Light cruiser laid down 1924

Displacement:
3,904 t light; 4,086 t standard; 4,843 t normal; 5,430 t full load
Loading submergence 399 tons/feet

Dimensions:
524.93 ft x 49.21 ft x 16.40 ft (normal load)
160.00 m x 15.00 m x 5.00 m

Armament:
8 - 5.91" / 150 mm guns (3 Main turrets, 1 superfiring turret (A-2, B-3, X-3)
6 - 3.94" / 100 mm guns
8 - 1.57" / 40 mm AA guns
Weight of broadside 1,023 lbs / 464 kg
8 - 20.9" / 530 mm above water torpedoes

Armour:
Main turrets 0.98" / 25 mm, 2nd gun shields 0.98" / 25 mm
AA gun shields 0.98" / 25 mm
Conning tower 0.98" / 25 mm

Aircraft: 1 Seaplane, 1 Catapult

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 72,502 shp / 54,086 Kw = 34.50 kts
Range 13,600nm at 12.00 kts

Complement:
290 - 377

Cost:
£1.781 million / $7.124 million

Distribution of weights at normal displacement:
Armament: 128 tons, 2.6 %
Armour: 94 tons, 1.9 %
Belts: 0 tons, 0.0 %, Armament: 88 tons, 1.8 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 6 tons, 0.1 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,373 tons, 49.0 %
Hull, fittings & equipment: 1,269 tons, 26.2 %
Fuel, ammunition & stores: 940 tons, 19.4 %
Miscellaneous weights: 40 tons, 0.8 %

Metacentric height 3.1

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.41
Shellfire needed to sink: 1,163 lbs / 528 Kg = 11.3 x 5.9 " / 150 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.5
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.48
Relative quality as seaboat: 1.20

Hull form characteristics:
Block coefficient: 0.400
Sharpness coefficient: 0.29
Hull speed coefficient 'M': 9.49
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 58 %
Trim: 58
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 179.2 %
Relative accommodation and working space: 131.3 %
(Average = 100%)
Displacement factor: 82 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.50
(Structure weight / hull surface area: 49 lbs / square foot or 239 Kg / square metre)
Relative longitudinal hull strength: 0.81
(for 18.11 ft / 5.52 m average freeboard, freeboard adjustment 5.01 ft)
Relative composite hull strength: 0.52

Ships in Class:
- Roland
- Olifant
- Turpin
- Roncevaux
- Oliver
- Durendal

Notes:
Scheduled for rebuilding.

Emile Bertin-class, French Light Cruisers laid down 1928

Displacement:
5,708 t light; 5,959 t standard; 7,057 t normal; 7,935 t full load

Dimensions: Length overall / water x beam x draught
593.53 ft / 570.87 ft x 53.48 ft (Bulges 57.09 ft) x 18.04 ft (normal load)
180.91 m / 174.00 m x 16.30 m (Bulges 17.40 m) x 5.50 m

Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 110.23lbs / 50.00kg shells, 1928 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 3.94" / 100 mm guns (2x2 guns), 35.27lbs / 16.00kg shells, 1928 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
4 - 3.94" / 100 mm guns (2x2 guns), 35.27lbs / 16.00kg shells, 1928 Model
Breech loading guns in deck mounts with hoists
on side, all amidships
24 - 1.57" / 40.0 mm guns (6x4 guns), 1.95lbs / 0.88kg shells, 1928 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 1,211 lbs / 549 kg
Shells per gun, main battery: 150
16 - 21.7" / 550 mm above water torpedoes

Aviation: 1 Seaplane, 1 Catapult

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 448.16 ft / 136.60 m 9.19 ft / 2.80 m
Ends: Unarmoured
Main Belt covers 121 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 0.98" / 25 mm 1.97" / 50 mm
2nd: 1.97" / 50 mm 0.39" / 10 mm -
3rd: 1.97" / 50 mm 0.39" / 10 mm -
4th: 0.98" / 25 mm 0.20" / 5 mm -

- Armour deck: 0.79" / 20 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 72,812 shp / 54,318 Kw = 34.00 kts
Range 10,900nm at 15.00 kts
Bunker at max displacement = 1,977 tons

Complement:
384 - 500

Cost:
£2.435 million / $9.739 million

Distribution of weights at normal displacement:
Armament: 144 tons, 2.0 %
Armour: 962 tons, 13.6 %
- Belts: 488 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 162 tons, 2.3 %
- Armour Deck: 288 tons, 4.1 %
- Conning Tower: 25 tons, 0.4 %
Machinery: 2,267 tons, 32.1 %
Hull, fittings & equipment: 2,295 tons, 32.5 %
Fuel, ammunition & stores: 1,349 tons, 19.1 %
Miscellaneous weights: 40 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,498 lbs / 2,040 Kg = 42.0 x 6.0 " / 152 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.37
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 27.55 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.89 ft / 8.50 m
- Forecastle (20 %): 20.83 ft / 6.35 m
- Mid (44 %): 20.83 ft / 6.35 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 12.96 ft / 3.95 m
- Stern: 12.96 ft / 3.95 m
- Average freeboard: 17.02 ft / 5.19 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 120.8 %
- Above water (accommodation/working, high = better): 96.1 %
Waterplane Area: 19,759 Square feet or 1,836 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 73 lbs/sq ft or 357 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.73
- Longitudinal: 0.92
- Overall: 0.75
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Ships in Class:
- Emile Bertin
- Primauguet
- Montcalm
- Tourville

Algerie class, French Heavy Cruiser laid down 1935

Displacement:
9,629 t light; 10,019 t standard; 11,921 t normal; 13,443 t full load

Dimensions: Length overall / water x beam x draught
649.14 ft / 636.48 ft x 56.76 ft (Bulges 63.98 ft) x 23.13 ft (normal load)
197.86 m / 194.00 m x 17.30 m (Bulges 19.50 m) x 7.05 m

Armament:
12 - 5.98" / 152 mm guns (4x3 guns), 110.23lbs / 50.00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.94" / 100 mm guns (1x2 guns), 35.27lbs / 16.00kg shells, 1935 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 35.27lbs / 16.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,707 lbs / 774 kg
Shells per gun, main battery: 150
12 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 374.67 ft / 114.20 m 9.19 ft / 2.80 m
Ends: 0.98" / 25 mm 261.48 ft / 79.70 m 9.19 ft / 2.80 m
Upper: 0.98" / 25 mm 65.62 ft / 20.00 m 9.84 ft / 3.00 m
Main Belt covers 91 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.33" / 110 mm 2.76" / 70 mm 3.35" / 85 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -
4th: 0.98" / 25 mm 0.20" / 5 mm -

- Armour deck: 1.97" / 50 mm, Conning tower: 4.33" / 110 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 98,186 shp / 73,246 Kw = 34.00 kts
Range 2,800nm at 30.00 kts
Bunker at max displacement = 3,423 tons

Complement:
569 - 741

Cost:
£4.571 million / $18.285 million

Distribution of weights at normal displacement:
Armament: 203 tons, 1.7 %
Armour: 1,965 tons, 16.5 %
- Belts: 696 tons, 5.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 354 tons, 3.0 %
- Armour Deck: 867 tons, 7.3 %
- Conning Tower: 49 tons, 0.4 %
Machinery: 2,789 tons, 23.4 %
Hull, fittings & equipment: 4,582 tons, 38.4 %
Fuel, ammunition & stores: 2,292 tons, 19.2 %
Miscellaneous weights: 90 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,562 lbs / 6,605 Kg = 135.9 x 6.0 " / 152 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.8 ft / 0.9 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.443
Length to Beam Ratio: 9.95 : 1
'Natural speed' for length: 29.01 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.78 ft / 10.60 m
- Forecastle (25 %): 24.44 ft / 7.45 m
- Mid (50 %): 24.44 ft / 7.45 m (14.60 ft / 4.45 m aft of break)
- Quarterdeck (15 %): 14.60 ft / 4.45 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 20.67 ft / 6.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.5 %
- Above water (accommodation/working, high = better): 113.0 %
Waterplane Area: 23,799 Square feet or 2,211 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 107 lbs/sq ft or 524 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.49
- 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
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
Aviation - 2 Seaplanes, 1 Catapult
Air search radar - 20 tons
Surface search radar- 20 tons

Notes:
10,000nm @ 18 kts
4,500nm @ 25 kts
2,800nm @ 30 kts

Ships in Class:
- Algerie
- Tunisie
- Corse (ex-Syrie)
- Leban

Senegal class, French Cruiser laid down 1937

Displacement:
9,968 t light; 10,362 t standard; 12,124 t normal; 13,534 t full load

Dimensions: Length overall / water x beam x draught
649.14 ft / 636.48 ft x 56.76 ft (Bulges 63.98 ft) x 23.13 ft (normal load)
197.86 m / 194.00 m x 17.30 m (Bulges 19.50 m) x 7.05 m

Armament:
12 - 5.98" / 152 mm guns (4x3 guns), 110.23lbs / 50.00kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.94" / 100 mm guns (1x2 guns), 35.27lbs / 16.00kg shells, 1937 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 35.27lbs / 16.00kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,707 lbs / 774 kg
Shells per gun, main battery: 150
12 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.33" / 110 mm 374.67 ft / 114.20 m 9.19 ft / 2.80 m
Ends: 0.98" / 25 mm 261.48 ft / 79.70 m 9.19 ft / 2.80 m
Upper: 0.98" / 25 mm 377.30 ft / 115.00 m 9.84 ft / 3.00 m
Main Belt covers 91 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.12" / 130 mm 2.76" / 70 mm 3.35" / 85 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -
4th: 0.98" / 25 mm 0.20" / 5 mm -

- Armour deck: 2.17" / 55 mm, Conning tower: 4.33" / 110 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 99,625 shp / 74,320 Kw = 34.00 kts
Range 2,600nm at 30.00 kts
Bunker at max displacement = 3,172 tons

Complement:
577 - 751

Cost:
£4.941 million / $19.763 million

Distribution of weights at normal displacement:
Armament: 203 tons, 1.7 %
Armour: 2,234 tons, 18.4 %
- Belts: 861 tons, 7.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 364 tons, 3.0 %
- Armour Deck: 959 tons, 7.9 %
- Conning Tower: 49 tons, 0.4 %
Machinery: 2,761 tons, 22.8 %
Hull, fittings & equipment: 4,619 tons, 38.1 %
Fuel, ammunition & stores: 2,156 tons, 17.8 %
Miscellaneous weights: 150 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,864 lbs / 6,742 Kg = 138.7 x 6.0 " / 152 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 2.7 ft / 0.8 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.18

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.451
Length to Beam Ratio: 9.95 : 1
'Natural speed' for length: 28.98 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.78 ft / 10.60 m
- Forecastle (25 %): 24.44 ft / 7.45 m
- Mid (50 %): 24.44 ft / 7.45 m (14.60 ft / 4.45 m aft of break)
- Quarterdeck (15 %): 14.60 ft / 4.45 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 20.69 ft / 6.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.8 %
- Above water (accommodation/working, high = better): 111.9 %
Waterplane Area: 23,948 Square feet or 2,225 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 108 lbs/sq ft or 526 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.49
- 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

Ships in Class:
- Sénégal
- Martinique
- Niger
- Guadeloupe

Notes:
Notes: Repeat of existing Algerie-class, with more armour.

Volta-class, French Scout Cruiser laid down 1937

Displacement:
4,325 t light; 4,527 t standard; 5,396 t normal; 6,091 t full load

Dimensions: Length overall / water x beam x draught
510.12 ft / 492.13 ft x 45.93 ft x 18.04 ft (normal load)
155.48 m / 150.00 m x 14.00 m x 5.50 m

Armament:
8 - 5.43" / 138 mm guns (4x2 guns), 80.19lbs / 36.37kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1937 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (4x4 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 665 lbs / 302 kg
Shells per gun, main battery: 250
12 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.57" / 40 mm 410.11 ft / 125.00 m 10.66 ft / 3.25 m
Ends: Unarmoured
Main Belt covers 128 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.36" / 60 mm 1.38" / 35 mm 2.36" / 60 mm
2nd: 0.59" / 15 mm - -
3rd: 0.59" / 15 mm - -

- Armour deck: 0.79" / 20 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 66,862 shp / 49,879 Kw = 34.00 kts
Range 7,350nm at 18.00 kts
Bunker at max displacement = 1,564 tons

Complement:
314 - 409

Cost:
£2.618 million / $10.473 million

Distribution of weights at normal displacement:
Armament: 82 tons, 1.5 %
Armour: 572 tons, 10.6 %
- Belts: 275 tons, 5.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 56 tons, 1.0 %
- Armour Deck: 221 tons, 4.1 %
- Conning Tower: 21 tons, 0.4 %
Machinery: 1,853 tons, 34.3 %
Hull, fittings & equipment: 1,743 tons, 32.3 %
Fuel, ammunition & stores: 1,071 tons, 19.8 %
Miscellaneous weights: 75 tons, 1.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,524 lbs / 1,598 Kg = 43.9 x 5.4 " / 138 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 2.2 ft / 0.7 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.27

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.463
Length to Beam Ratio: 10.71 : 1
'Natural speed' for length: 25.29 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.17 ft / 9.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 19.52 ft / 5.95 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 125.5 %
- Above water (accommodation/working, high = better): 91.5 %
Waterplane Area: 15,145 Square feet or 1,407 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 60 lbs/sq ft or 292 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.68
- Longitudinal: 1.93
- Overall: 0.75
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
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 weights:
- Torpedo reloads: 35 tons (twelve torpedoes)
- Air search radar - 20 tons
- Surface search radar - 20 tons

Ships in Class:
- Volta
- Rhin
- Bruix (ex-Chari)
- Fier

Roland, French Contre-Torpillieur laid down 1924 (Engine 1941)
In 1941 the first two Roland-class cruisers received a substantial reconstruction. The remaining ships would eventually follow in 1942 and 1943.

Displacement:
3,861 t light; 4,045 t standard; 4,843 t normal; 5,482 t full load

Dimensions: Length overall / water x beam x draught
540.09 ft / 524.93 ft x 49.21 ft x 16.40 ft (normal load)
164.62 m / 160.00 m x 15.00 m x 5.00 m

Armament:
8 - 5.43" / 138 mm guns (4x2 guns), 80.19lbs / 36.37kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, all raised mounts
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1924 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 748 lbs / 339 kg
Shells per gun, main battery: 200
8 - 21.7" / 550 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - 0.79" / 20 mm
2nd: 0.98" / 25 mm - 0.79" / 20 mm
3rd: 0.98" / 25 mm - -
4th: 0.98" / 25 mm - -

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,160 shp / 46,371 Kw = 34.50 kts
Range 7,500nm at 18.00 kts
Range 3,400nm at 25.00 kts
Bunker at max displacement = 1,437 tons

Complement:
289 - 377

Cost:
£1.419 million / $5.675 million

Distribution of weights at normal displacement:
Armament: 112 tons, 2.3 %
Armour: 39 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.1 %
Machinery: 1,643 tons, 33.9 %
Hull, fittings & equipment: 1,907 tons, 39.4 %
Fuel, ammunition & stores: 982 tons, 20.3 %
Miscellaneous weights: 160 tons, 3.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,274 lbs / 1,485 Kg = 40.8 x 5.4 " / 138 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 2.4 ft / 0.7 m
Roll period: 13.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.67 : 1
'Natural speed' for length: 26.36 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 17.81 ft / 5.43 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 131.5 %
- Above water (accommodation/working, high = better): 142.2 %
Waterplane Area: 16,503 Square feet or 1,533 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.76
- Longitudinal: 1.41
- Overall: 0.81
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Ships in Class:
- Roland (rebuilt 1941)
- Olifant (rebuilt 1941)
- Turpin (rebuilt 1942)
- Roncevaux (rebuilt 1942)

Oliver, French Contre-Torpillieur laid down 1924 (Engine 1943)
Refit of Contre-torpilleur; to a different standard than the four above.

Displacement:
3,837 t light; 4,059 t standard; 4,843 t normal; 5,471 t full load

Dimensions: Length overall / water x beam x draught
540.09 ft / 524.93 ft x 49.21 ft x 16.40 ft (normal load)
164.62 m / 160.00 m x 15.00 m x 5.00 m

Armament:
8 - 5.43" / 138 mm guns (4x2 guns), 80.19lbs / 36.37kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 6.61lbs / 3.00kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1940 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 696 lbs / 316 kg
Shells per gun, main battery: 310
8 - 21.7" / 550 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.20" / 5 mm 0.20" / 5 mm
3rd: 0.59" / 15 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 62,160 shp / 46,371 Kw = 34.50 kts
Range 7,500nm at 18.00 kts
Bunker at max displacement = 1,412 tons

Complement:
289 - 377

Cost:
£1.378 million / $5.512 million

Distribution of weights at normal displacement:
Armament: 103 tons, 2.1 %
Armour: 57 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 44 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 12 tons, 0.3 %
Machinery: 1,605 tons, 33.1 %
Hull, fittings & equipment: 1,912 tons, 39.5 %
Fuel, ammunition & stores: 1,006 tons, 20.8 %
Miscellaneous weights: 160 tons, 3.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,438 lbs / 1,560 Kg = 42.9 x 5.4 " / 138 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.42
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.67 : 1
'Natural speed' for length: 26.36 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 17.81 ft / 5.43 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 128.7 %
- Above water (accommodation/working, high = better): 142.2 %
Waterplane Area: 16,503 Square feet or 1,533 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.77
- Longitudinal: 1.41
- Overall: 0.82
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Ships in Class:
- Oliver
- Durendal

Emile Bertin-class, French Light Cruiser laid down 1928 (Engine 1944)

Displacement:
5,593 t light; 5,957 t standard; 7,057 t normal; 7,936 t full load

Dimensions: Length overall / water x beam x draught
593.53 ft / 570.87 ft x 53.48 ft (Bulges 57.09 ft) x 18.04 ft (normal load)
180.91 m / 174.00 m x 16.30 m (Bulges 17.40 m) x 5.50 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 79.37lbs / 36.00kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 2.24" / 57.0 mm guns (2x2 guns), 6.61lbs / 3.00kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline, evenly spread, all raised mounts
4 - 2.24" / 57.0 mm guns (2x2 guns), 6.61lbs / 3.00kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread
24 - 0.91" / 23.0 mm guns (12x2 guns), 0.37lbs / 0.17kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 697 lbs / 316 kg
Shells per gun, main battery: 550
16 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 448.16 ft / 136.60 m 9.19 ft / 2.80 m
Ends: Unarmoured
Main Belt covers 121 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm
2nd: 0.59" / 15 mm 0.20" / 5 mm 0.20" / 5 mm
3rd: 0.59" / 15 mm 0.20" / 5 mm 0.20" / 5 mm
4th: 0.39" / 10 mm 0.20" / 5 mm -

- Armour deck: 0.79" / 20 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 72,812 shp / 54,318 Kw = 34.00 kts
Range 8,500nm at 18.00 kts
Bunker at max displacement = 1,979 tons

Complement:
384 - 500

Cost:
£1.982 million / $7.927 million

Distribution of weights at normal displacement:
Armament: 75 tons, 1.1 %
Armour: 834 tons, 11.8 %
- Belts: 488 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 0.5 %
- Armour Deck: 288 tons, 4.1 %
- Conning Tower: 25 tons, 0.4 %
Machinery: 1,859 tons, 26.3 %
Hull, fittings & equipment: 2,635 tons, 37.3 %
Fuel, ammunition & stores: 1,464 tons, 20.7 %
Miscellaneous weights: 190 tons, 2.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,442 lbs / 3,829 Kg = 125.9 x 5.1 " / 130 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 2.9 ft / 0.9 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 27.55 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.89 ft / 8.50 m
- Forecastle (22 %): 24.36 ft / 7.43 m
- Mid (44 %): 20.83 ft / 6.35 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 12.96 ft / 3.95 m
- Stern: 12.96 ft / 3.95 m
- Average freeboard: 17.93 ft / 5.47 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 99.7 %
- Above water (accommodation/working, high = better): 98.9 %
Waterplane Area: 19,759 Square feet or 1,836 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 82 lbs/sq ft or 403 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 1.22
- Overall: 0.93
Caution: Hull subject to strain in open-sea
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

Breakdown of Miscellaneous Weights:
- 50 tons for electronics
- 45 tons for sixteen 42G torpedo reloads
- 15 tons for HVAC
- 25 tons for seaplane
- 15 tons for catapult
- 40 tons remaining for crew comforts and growth
190 tons total miscellaneous weight

Electronics:
- DRBV-9 surface and air search radars (2 radars, 15 tons)
- DRBN-1 navigational surface and air search radar (1 radar, 2 tons)
- DRBC-3B fire-control radar (2 radars, 8 tons)
- DRBI-3 height-finding radar (1 radar, 7 tons)
- SAGEM HF/DF (3 tons)
- ASDIC (8 tons)
- Diesel electric generator set (5 tons)
- Gunnery Computer for 130mm and 57mm guns (2 tons)

Ships in Class:
- Emile Bertin (refitted starting Q1/44)
- Primauguet (refitted starting Q2/44)
- Montcalm (refitted starting Q3/44)
- Tourville (refitted starting Q4/44)

Lafayette-class, French Light Cruiser laid down 1947
A variant of the Russian Navy's Avrora-class light cruisers; four built for the Marine Nationale starting in 1947. The 152mm guns are of Russian design and construction, while the 100mm and 40mm guns are of French origin; however, the 100mm guns can also fire Russian 100mm naval shells.

Displacement:
8,600 t light; 9,085 t standard; 10,558 t normal; 11,737 t full load

Dimensions: Length overall / water x beam x draught
610.68 ft / 591.86 ft x 61.02 ft x 18.18 ft (normal load)
186.13 m / 180.40 m x 18.60 m x 5.54 m

Armament:
9 - 5.98" / 152 mm guns (3x3 guns), 123.46lbs / 56.00kg shells, 1947 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 3.94" / 100 mm guns (1x2 guns), 35.27lbs / 16.00kg shells, 1947 Model
Automatic rapid fire guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
4 - 3.94" / 100 mm guns (2x2 guns), 35.27lbs / 16.00kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all aft
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.07lbs / 0.03kg shells, 1947 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,339 lbs / 607 kg
Shells per gun, main battery: 350
6 - 21.7" / 550 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 383.86 ft / 117.00 m 9.25 ft / 2.82 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.97" / 50 mm 3.15" / 80 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm 0.79" / 20 mm
3rd: 0.98" / 25 mm 0.20" / 5 mm -
4th: 0.59" / 15 mm 0.20" / 5 mm -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 83,813 shp / 62,525 Kw = 32.50 kts
Range 9,000nm at 18.00 kts
Bunker at max displacement = 2,652 tons

Complement:
520 - 677

Cost:
£5.361 million / $21.445 million

Distribution of weights at normal displacement:
Armament: 174 tons, 1.6 %
Armour: 1,723 tons, 16.3 %
- Belts: 468 tons, 4.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 254 tons, 2.4 %
- Armour Deck: 968 tons, 9.2 %
- Conning Tower: 33 tons, 0.3 %
Machinery: 2,070 tons, 19.6 %
Hull, fittings & equipment: 4,258 tons, 40.3 %
Fuel, ammunition & stores: 1,958 tons, 18.5 %
Miscellaneous weights: 375 tons, 3.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17,898 lbs / 8,119 Kg = 167.0 x 6.0 " / 152 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.0 ft / 0.9 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.563
Length to Beam Ratio: 9.70 : 1
'Natural speed' for length: 27.64 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.90 ft / 8.20 m
- Forecastle (25 %): 24.61 ft / 7.50 m
- Mid (50 %): 22.31 ft / 6.80 m
- Quarterdeck (15 %): 14.76 ft / 4.50 m (22.31 ft / 6.80 m before break)
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 22.27 ft / 6.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.5 %
- Above water (accommodation/working, high = better): 194.8 %
Waterplane Area: 26,569 Square feet or 2,468 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.64
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

Breakdown of Miscellaneous Weights:
- 120 tons for 152mm gun-loading equipment (40t/turret)
- 33 tons for 100mm automatic gun equipment (11t/turret)
- 222 tons for other equipment

Ships in Class:
- Lafayette: laid down in La Rochelle January 1947, completed June 1948.
- Latouche-Tréville: laid down in La Rochelle January 1947, completed June 1948.
- La Galissonniere: laid down in Marseilles January 1948, completed June 1949.
- Georges Leygyes: laid down in Marseilles January 1948, completed June 1949.
- De Grasse: laid down in Marseilles January 1949, completed June 1950.
- Dupleix: laid down in Marseilles January 1949, completed June 1950.
- du Chayla: laid down in La Rochelle January 1949, completed June 1950.
- Jean de Vienne: laid down in La Rochelle January 1949, completed June 1950.