WesWorld

Sloops, Corvettes, Avisos, and Patrol Boats

Designations
- Patrouilleurs are light vessels used for naval patrol of coastlines.
- Corvettes or Torpilleurs are fast, torpedo-equipped warships of under one thousand tons standard, and are primarily used in littoral regions.
- Avisos, ranging between 600 to 1500 tons, are vessels used for antisubmarine warfare and coast defense, and are deployed primarily to colonial outposts as station ships. Aviso-Drageurs are avisos equipped primarily or secondarily as minesweepers.
- Escorteur rapides are oceanic escort ships used for antisubmarine warfare.
- Fregates are vessels between 1,000 and 3,500 tons designed for oceanic patrol, usually (but not always) equipped with a floatplane or helicopter.

Meuse class Corvette - 1925
- Meuse: rebuilt 1944
- Sambre: rebuilt 1944
- Sormonne: rebuilt 1944
- Chiers: rebuilt 1944
- Othain: rebuilt 1945
(Five other ships scrapped 1948)

Emilia class Patrouilleur - 1928
- Emilia: rebuilt 1944
- Leïla: rebuilt 1944
- Pasquin: rebuilt 1944
- Carmen: rebuilt 1944
- Parséis: rebuilt 1944
- Cathérine: rebuilt 1944
- Marie: rebuilt 1944
- Bettina: rebuilt 1944
- Roxane: rebuilt 1944
- Laurette: rebuilt 1944
- Grisélidis: rebuilt 1944
- Vivette: rebuilt 1944
- Le Dancaïre: rebuilt 1944
- Micaëla: rebuilt 1944
- Frasquita: rebuilt 1944
- Véronique: rebuilt 1944

Zephir class Aviso - 1936
- Zephir
- Méduse
- Cléopâtre
- Désirée
- Bellone
- Aréthuse
- Égyptienne
- Piémontaise

Le Breton class Escorteur Rapide - 1942
- Le Breton: Laid down at Brest January 1942, completed December 1942
- Le Normand: Laid down at Brest January 1943, completed December 1943
- Le Boulonnais: Laid down at Brest January 1943, completed December 1943
- Le Lorrain: Laid down at Marseilles January 1943, completed December 1943
- Le Vendéen: Laid down at La Rochelle January 1944, completed December 1944
- Le Bordelais : Laid down at La Rochelle January 1944, completed December 1944
- Le Gascon: Laid down at La Rochelle January 1944, completed December 1944
- Le Savoyard: Laid down at La Rochelle January 1944, completed December 1944
- Le Picard: Laid down at La Rochelle January 1945, completed December 1945
- L'Alsacien: Laid down at La Rochelle January 1945, completed December 1945
- Le Audois: Laid down at La Rochelle January 1945, completed December 1945
- Le Brestois: Laid down at La Rochelle January 1945, completed December 1945
- Le Corse: Laid down at La Rochelle July 1945, completed June 1946
- Le Calaisien: Laid down at La Rochelle July 1945, completed June 1946
- Le Basque: Laid down at La Rochelle July 1945, completed June 1946
- Le Dijonnais: Laid down at La Rochelle July 1945, completed June 1946
- Le Dieppois: Laid down at La Rochelle January 1946, completed December 1946
- Le Champenois: Laid down at La Rochelle January 1946, completed December 1946
- Le Indrien: Laid down at La Rochelle January 1946, completed December 1946
- L'Calvadosien: Laid down at La Rochelle January 1946, completed December 1946
- L'Agenais: Laid down at La Rochelle July 1946, completed June 1947
- L'Costalorien: Laid down at La Rochelle July 1946, completed June 1947
- Le Avignonnais: Laid down at La Rochelle July 1946, completed June 1947
- Le Yvelinois: Laid down at La Rochelle July 1946, completed June 1947

Sans Reproche class Fregate - 1943
- Sans Reproche: Laid down at Marseilles January 1943, completed November 1943
- Sans Peur: Laid down at Marseilles January 1944, completed November 1944

Polynésie class Fregate - 1943
- Polynésie: Laid down at Marseilles January 1943, completed December 1943
- Fidji: Laid down at Marseilles January 1944, completed December 1944

Emilia class, French Patrol Boat laid down 1928
These vessels were rebuilt in 1944 to a more modern standard.

Displacement:
384 t light; 399 t standard; 420 t normal; 438 t full load

Dimensions: Length overall / water x beam x draught
214.02 ft / 203.41 ft x 26.25 ft x 6.56 ft (normal load)
65.23 m / 62.00 m x 8.00 m x 2.00 m

Armament:
1 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1928 Model
Breech loading gun in deck mount
on centreline forward
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1928 Model
Breech loading gun in deck mount
on centreline aft
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1928 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1928 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 74 lbs / 33 kg
Shells per gun, main battery: 150
2 - 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 - -
4th: 0.98" / 25 mm - -

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 9,848 shp / 7,347 Kw = 27.00 kts
Range 2,600nm at 10.00 kts
Bunker at max displacement = 39 tons

Complement:
46 - 60

Cost:
£0.184 million / $0.735 million

Distribution of weights at normal displacement:
Armament: 9 tons, 2.2 %
Armour: 7 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 1.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.3 %
Machinery: 192 tons, 45.8 %
Hull, fittings & equipment: 155 tons, 36.9 %
Fuel, ammunition & stores: 37 tons, 8.8 %
Miscellaneous weights: 20 tons, 4.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
164 lbs / 74 Kg = 3.1 x 4.7 " / 120 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 0.8 ft / 0.2 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 0.90

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.420
Length to Beam Ratio: 7.75 : 1
'Natural speed' for length: 14.26 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 77
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: 18.37 ft / 5.60 m
- Forecastle (20 %): 13.94 ft / 4.25 m
- Mid (50 %): 10.50 ft / 3.20 m
- Quarterdeck (15 %): 10.50 ft / 3.20 m
- Stern: 10.50 ft / 3.20 m
- Average freeboard: 12.06 ft / 3.68 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.0 %
- Above water (accommodation/working, high = better): 112.9 %
Waterplane Area: 3,328 Square feet or 309 Square metres
Displacement factor (Displacement / loading): 59 %
Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 4.07
- Overall: 0.61
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Vessels in Class:
- Emilia
- Leïla
- Pasquin
- Carmen
- Parséis
- Cathérine
- Marie
- Bettina
- Roxane
- Laurette
- Grisélidis
- Vivette
- Le Dancaïre
- Micaëla
- Frasquita
- Véronique

Zephir-class, French Aviso laid down 1936

Displacement:
1,171 t light; 1,269 t standard; 1,522 t normal; 1,725 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), 61.73lbs / 28.00kg shells, 1936 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, 1936 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, 1936 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, 1936 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 394 lbs / 179 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:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,054 shp / 7,500 Kw = 23.61 kts
Range 10,800nm at 12.00 kts
Bunker at max displacement = 455 tons

Complement:
121 - 158

Cost:
£0.613 million / $2.450 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: 282 tons, 18.5 %
Hull, fittings & equipment: 730 tons, 48.0 %
Fuel, ammunition & stores: 352 tons, 23.1 %
Miscellaneous weights: 100 tons, 6.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,330 lbs / 1,057 Kg = 44.2 x 4.7 " / 120 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.51

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.500
Length to Beam Ratio: 9.51 : 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): 92.0 %
- Above water (accommodation/working, high = better): 103.4 %
Waterplane Area: 7,165 Square feet or 666 Square metres
Displacement factor (Displacement / loading): 149 %
Structure weight / hull surface area: 58 lbs/sq ft or 282 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.60
- 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

Breakdown of Miscellaneous Weights:
ASDIC: 10 tons
Depth charges: 30 tons
Misc weight: 60 tons

Notes:
- Range 10,800nm at 12.00 kts
- Range 6,300nm at 15.00 kts
- Range 3,915nm at 18.00 kts

Ships in Class:
- Zephir
- Méduse
- Cléopâtre
- Désirée
- Bellone
- Aréthuse
- Égyptienne
- Piémontaise

Le Breton class (E42), French Escorteurs Rapide laid down 1942
Through the 1930s, the Marine Nationale gave significant consideration to light forces suitable for the escort of fleets at sea. This process resulted in the extremely successful Jaguar class destroyer and its various sub-groups. Despite extensive streamlining of the construction process in order to reduce construction costs and time, the Jaguars remained relatively expensive warships to build. The Marine Nationale sought a smaller and less-expensive warship for the role. The Zephir class aviso, laid down in 1936, provided a starting point for the DCNS designers. The Zephir's main gun battery of 6x120mm guns was reduced to 6x100mm and repositioned to provide for better electronics and antisubmarine weaponry. More powerful machinery, including an Alsthom diesel engine for cruising speed, allowed the ship to reach twenty-eight knots. The resulting design was called the escortier rapide.

The first of these ships, Le Breton, was intended as a testing unit and laid down in 1942, and three more ships were ordered to the same design in 1943. These ships were built using prefabricated sections to save construction time and costs, a process carried over from the Barfleur group destroyers.

Displacement:
1,185 t light; 1,302 t standard; 1,547 t normal; 1,743 t full load

Dimensions: Length overall / water x beam x draught
328.19 ft / 314.96 ft x 33.79 ft x 12.11 ft (normal load)
100.03 m / 96.00 m x 10.30 m x 3.69 m

Armament:
6 - 3.94" / 100 mm guns (3x2 guns), 35.27lbs / 16.00kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority aft, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 227 lbs / 103 kg
Shells per gun, main battery: 650
6 - 21.7" / 550 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm 0.39" / 10 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -

- Conning tower: 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 16,565 shp / 12,357 Kw = 28.00 kts
Range 4,500nm at 18.00 kts
Bunker at max displacement = 441 tons

Complement:
123 - 160

Cost:
£0.782 million / $3.129 million

Distribution of weights at normal displacement:
Armament: 25 tons, 1.6 %
Armour: 20 tons, 1.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 433 tons, 28.0 %
Hull, fittings & equipment: 547 tons, 35.4 %
Fuel, ammunition & stores: 362 tons, 23.4 %
Miscellaneous weights: 160 tons, 10.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,180 lbs / 535 Kg = 38.7 x 3.9 " / 100 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 9.32 : 1
'Natural speed' for length: 20.59 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 11.48 ft / 3.50 m
- Quarterdeck (15 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 13.60 ft / 4.15 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 119.2 %
- Above water (accommodation/working, high = better): 79.0 %
Waterplane Area: 6,890 Square feet or 640 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 43 lbs/sq ft or 212 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.68
- Longitudinal: 2.28
- Overall: 0.77
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Breakdown of Miscellaneous Weights:
- 25 tons for electronics
- 15 tons for hydrophones and ASDIC
- 14 tons for six reload torpedoes (3,638 lb each)
- 35 tons for depth charges (128x573-lb bombs)
- 25 tons for Lance roquettes anti-sous-marin de 265mm modèle 1942
- 10 tons for HVAC
- 16 tons for miscellaneous radio, electronics and ECM gear
- 20 tons for crew comforts
160 tons total miscellaneous weight

Electronics:
- DRBV-9 surface and air search radars (1 radar, 7 tons)
- DRBN-1 navigational surface and air search radar (1 radar, 2 tons)
- DRBC-3B fire-control radar (1 radar, 4 tons)
- DRBI-2R height-finding radar (1 radar, 2 tons)
- SAGEM HF/DF (3 tons)
- Diesel electric generator set (5 tons)
- Gunnery Computer for 100mm and 40mm guns (2 tons)

Ships in Class:
- Le Breton: Laid down at Brest January 1942, completed December 1942
- Le Normand: Laid down at Brest January 1943, completed December 1943
- Le Boulonnais: Laid down at Brest January 1943, completed December 1943
- Le Lorrain: Laid down at Marseilles January 1943, completed December 1943
- Le Vendéen: Laid down at La Rochelle January 1944, completed December 1944
- Le Bordelais : Laid down at La Rochelle January 1944, completed December 1944
- Le Gascon: Laid down at La Rochelle January 1944, completed December 1944
- Le Savoyard: Laid down at La Rochelle January 1944, completed December 1944
- Le Picard: Laid down at La Rochelle January 1945, completed December 1945
- L'Alsacien: Laid down at La Rochelle January 1945, completed December 1945
- Le Audois: Laid down at La Rochelle January 1945, completed December 1945
- Le Brestois: Laid down at La Rochelle January 1945, completed December 1945
- Le Corse: Laid down at La Rochelle July 1945, completed June 1946
- Le Calaisien: Laid down at La Rochelle July 1945, completed June 1946
- Le Basque: Laid down at La Rochelle July 1945, completed June 1946
- Le Dijonnais: Laid down at La Rochelle July 1945, completed June 1946
- Le Dieppois: Laid down at La Rochelle January 1946, completed December 1946
- Le Champenois: Laid down at La Rochelle January 1946, completed December 1946
- Le Indrien: Laid down at La Rochelle January 1946, completed December 1946
- L'Calvadosien: Laid down at La Rochelle January 1946, completed December 1946
- L'Agenais: Laid down at La Rochelle July 1946, completed June 1947
- L'Costalorien: Laid down at La Rochelle July 1946, completed June 1947
- Le Avignonnais: Laid down at La Rochelle July 1946, completed June 1947
- Le Yvelinois: Laid down at La Rochelle July 1946, completed June 1947

Sans Reproche, French Aviso / Frigate laid down 1943
The Sans Reproche or Tran Nhat Duat class frigates were designed by DCNS in the late 1930s, originally as light seaplane tenders. Since the 1920s, the Marine Nationale's Aeronavale operated significant forces of floatplane fighters and torpedo bombers, although by 1940 these forces had largely relocated to the Pacific Ocean. The design was intended to support squadrons of floatplane fighters and attack aircraft by setting up floatplane bases in remote or undeveloped regions. In 1942, when Indochina's Patrouille Navale formed, the leadership looked for an inexpensive patrol ship to serve as a short-term flagship, oceanic patrol vessel, and training ship. DCNS offered both the escortier rapide design and their seaplane tender. The Patrouille Navale's leadership quickly determined that the seaplane tender offered a more useful mix of capabilities, as the ship was significantly more spacious than the escortier rapide. Two ships were ordered for construction in 1943, with one vessel going to the Marine Nationale and a second to the Patrouille Navale. The Indochinese vessel, to be built in Saigon, would be named Tran Nhat Duat, while the second ship, built in Marseilles, would be named Sans Reproche. The Indochinese government also extended a tentative order for a second ship of the class in 1945, while the Marine Nationale ordered Sans Peur for 1944.

Displacement:
1,400 t light; 1,465 t standard; 1,725 t normal; 1,933 t full load

Dimensions: Length overall / water x beam x draught
355.29 ft / 344.49 ft x 39.37 ft x 10.50 ft (normal load)
108.29 m / 105.00 m x 12.00 m x 3.20 m

Armament:
2 - 3.94" / 100 mm guns (1x2 guns), 39.68lbs / 18.00kg shells, 1943 Model
Automatic rapid fire guns in a deck mount with hoist
on centreline forward
2 - 2.24" / 57.0 mm guns (1x2 guns), 6.61lbs / 3.00kg shells, 1943 Model
Automatic rapid fire guns in a deck mount with hoist
on centreline forward, all raised guns - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 94 lbs / 42 kg
Shells per gun, main battery: 550

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm 0.39" / 10 mm
2nd: 0.59" / 15 mm 0.20" / 5 mm 0.20" / 5 mm

- Conning tower: 0.98" / 25 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 5,417 shp / 4,041 Kw = 20.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 467 tons

Complement:
133 - 173

Cost:[/B]
£0.509 million / $2.037 million

Distribution of weights at normal displacement:
Armament: 11 tons, 0.6 %
Armour: 7 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 140 tons, 8.1 %
Hull, fittings & equipment: 792 tons, 45.9 %
Fuel, ammunition & stores: 325 tons, 18.8 %
Miscellaneous weights: 450 tons, 26.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,285 lbs / 1,944 Kg = 140.4 x 3.9 " / 100 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.5 ft / 0.5 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.424
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 18.56 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.67 ft / 6.30 m
- Forecastle (25 %): 19.36 ft / 5.90 m
- Mid (50 %): 18.04 ft / 5.50 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: 14.57 ft / 4.44 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 62.0 %
- Above water (accommodation/working, high = better): 164.3 %
Waterplane Area: 8,479 Square feet or 788 Square metres
Displacement factor (Displacement / loading): 209 %
Structure weight / hull surface area: 56 lbs/sq ft or 275 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 2.32
- Overall: 1.06
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

Breakdown of Miscellaneous Weights:
- 30 tons for electronics
- 9 tons for depth charges (32x573-lb bombs)
- 16 tons for miscellaneous radio, electronics and ECM gear
- 10 tons for HVAC
- 10 tons for aft crane
- 100 tons for up to four floatplanes or mines
- 5 tons for minesweeping paravanes
- 20 tons for crew comforts
- 250 tons for cadets or stores
450 tons total miscellaneous weight

Electronics:
- DRBV-9 surface and air search radars (1 radar, 7 tons)
- DRBN-1 navigational surface and air search radar (1 radar, 2 tons)
- DRBC-3B fire-control radar (1 radar, 4 tons)
- DRBI-2R height-finding radar (1 radar, 2 tons)
- DUBV-7 Hull Sonar (5 tons)
- SAGEM HF/DF (3 tons)
- Diesel electric generator set (5 tons)
- Gunnery Computer for 100mm and 57mm guns (2 tons)

Ships in Class:
- Sans Reproche: Laid down at Marseilles January 1943, completed November 1943
- Sans Peur: Laid down at Marseilles January 1944, completed November 1944
- Tran Nhat Duat: Laid down at Saigon January 1943, completed November 1943 (link)
- Trieu Thi Trinh: On order for 1946

Notes:
Electronics fit is the same as that aboard the Le Breton-class escorteur rapide. The 100mm DP gun is simmed as auto to account for higher weight.

Polynésie-class, French Frégate de surveillance laid down 1943
The Polynésie-class surveillance frigates were designed for service in the Pacific Ocean, with the objective of policing large bodies of ocean and the numerous island chains of the French territories there. In order to aid in undertaking these duties, the ship had an unusual mix of design elements. The forward half of the ship appeared in most respects to be a large destroyer, with two twin 130mm dual-purpose guns. However, the aft section featured a long "dry well deck" with two side-by-side tracks, each capable of holding two launches, landing craft, or small motor torpedo boats - or alternately, minelaying gear, floatplanes, or antisubmarine nets. This "dry well deck", although entirely above the waterline, was equipped with a system to hoist the boats aboard, or quickly launch them.

Displacement:
2,745 t light; 2,886 t standard; 3,540 t normal; 4,064 t full load

Dimensions: Length overall / water x beam x draught
451.39 ft / 442.91 ft x 49.87 ft x 12.47 ft (normal load)
137.58 m / 135.00 m x 15.20 m x 3.80 m

Armament:
4 - 5.12" / 130 mm guns (2x2 guns), 79.37lbs / 36.00kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline, all forward, 1 raised mount - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 6.61lbs / 3.00kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships
8 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 371 lbs / 168 kg
Shells per gun, main battery: 320

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.18" / 30 mm 265.75 ft / 81.00 m 8.46 ft / 2.58 m
Ends: Unarmoured
Main Belt covers 92 % of normal length

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

- Conning tower: 2.36" / 60 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 20,223 shp / 15,086 Kw = 26.50 kts
Range 11,500nm at 15.00 kts
Bunker at max displacement = 1,178 tons

Complement:
229 - 298

Cost:
£1.366 million / $5.465 million

Distribution of weights at normal displacement:
Armament: 47 tons, 1.3 %
Armour: 151 tons, 4.3 %
- Belts: 113 tons, 3.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 12 tons, 0.3 %
Machinery: 522 tons, 14.8 %
Hull, fittings & equipment: 1,574 tons, 44.5 %
Fuel, ammunition & stores: 796 tons, 22.5 %
Miscellaneous weights: 450 tons, 12.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,360 lbs / 3,338 Kg = 109.8 x 5.1 " / 130 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.4 ft / 0.7 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.37

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 8.88 : 1
'Natural speed' for length: 24.41 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 51
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: 23.29 ft / 7.10 m
- Forecastle (25 %): 19.03 ft / 5.80 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: 16.79 ft / 5.12 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.9 %
- Above water (accommodation/working, high = better): 190.5 %
Waterplane Area: 14,635 Square feet or 1,360 Square metres
Displacement factor (Displacement / loading): 175 %
Structure weight / hull surface area: 72 lbs/sq ft or 351 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.62
- Overall: 1.00
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
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 45 tons for electronics
- 20 tons for Acclimatization Gear
- 200 tons for 4x Vedettes (50t max each), light landing craft, mines, or floatplanes
- 100 tons for 50 marines
- 5 tons for communications gear
- 5 tons for stern launch gate
- 5 tons for crane
- 10 tons for minesweeping launch
- 60 tons for supplies

Ships in Class:
- Polynésie: Laid down at Marseilles January 1943, completed December 1943
- Fidji: Laid down at Marseilles January 1944, completed December 1944

Meuse-class, French Corvette laid down 1925, Rebuilt 1944

Displacement:
531 t light; 554 t standard; 625 t normal; 681 t full load

Dimensions: Length overall / water x beam x draught
229.66 ft / 229.66 ft x 21.98 ft x 10.83 ft (normal load)
70.00 m / 70.00 m x 6.70 m x 3.30 m

Armament:
1 - 3.94" / 100 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1944 Model
Dual purpose gun in deck mount
on centreline forward
1 - 2.24" / 57.0 mm guns in single mounts, 6.61lbs / 3.00kg shells, 1944 Model
Dual purpose gun in deck mount
on centreline aft
4 - 0.91" / 23.0 mm guns in single mounts, 0.37lbs / 0.17kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 43 lbs / 20 kg
Shells per gun, main battery: 400
4 - 21.7" / 550 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
2nd: 0.98" / 25 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 14,354 shp / 10,708 Kw = 30.00 kts
Range 4,700nm at 12.00 kts
Bunker at max displacement = 126 tons

Complement:
62 - 81

Cost:
£0.214 million / $0.857 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.8 %
Armour: 3 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 307 tons, 49.1 %
Hull, fittings & equipment: 182 tons, 29.1 %
Fuel, ammunition & stores: 93 tons, 14.9 %
Miscellaneous weights: 35 tons, 5.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
185 lbs / 84 Kg = 6.1 x 3.9 " / 100 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.45 : 1
'Natural speed' for length: 17.47 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 11.48 ft / 3.50 m
- Forecastle (20 %): 11.48 ft / 3.50 m
- Mid (50 %): 11.32 ft / 3.45 m
- Quarterdeck (15 %): 11.32 ft / 3.45 m
- Stern: 11.32 ft / 3.45 m
- Average freeboard: 11.38 ft / 3.47 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171.7 %
- Above water (accommodation/working, high = better): 47.2 %
Waterplane Area: 3,225 Square feet or 300 Square metres
Displacement factor (Displacement / loading): 62 %
Structure weight / hull surface area: 23 lbs/sq ft or 113 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.81
- Overall: 0.61
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor

Breakdown of Miscellaneous Weights:
Not Yet Available.

Ships in Class:
- Meuse (laid down 1925, refitted 1944)
- Sambre (laid down 1925, refitted 1944)
- Sormonne (laid down 1925, refitted 1944)
- Chiers (laid down 1925, refitted 1944)
- Othain (laid down 1925, refitted 1945)

Emilia-class, French Patrol Boat laid down 1928, Refitted 1944

Displacement:
380 t light; 400 t standard; 420 t normal; 437 t full load

Dimensions: Length overall / water x beam x draught
214.02 ft / 203.41 ft x 26.25 ft x 6.56 ft (normal load)
65.23 m / 62.00 m x 8.00 m x 2.00 m

Armament:
2 - 2.24" / 57.0 mm guns in single mounts, 6.61lbs / 3.00kg shells, 1944 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.91" / 23.0 mm guns in single mounts, 0.37lbs / 0.17kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 23 lbs / 10 kg
Shells per gun, main battery: 750
2 - 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 - -

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 7,854 shp / 5,859 Kw = 27.00 kts
Range 2,600nm at 10.00 kts
Bunker at max displacement = 36 tons

Complement:
46 - 60

Cost:
£0.162 million / $0.649 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.6 %
Armour: 5 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.3 %
Machinery: 193 tons, 46.0 %
Hull, fittings & equipment: 144 tons, 34.3 %
Fuel, ammunition & stores: 41 tons, 9.7 %
Miscellaneous weights: 35 tons, 8.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
177 lbs / 80 Kg = 31.3 x 2.2 " / 57 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 0.91

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 7.75 : 1
'Natural speed' for length: 16.82 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 77
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: 18.37 ft / 5.60 m
- Forecastle (20 %): 13.94 ft / 4.25 m
- Mid (50 %): 10.50 ft / 3.20 m
- Quarterdeck (15 %): 10.50 ft / 3.20 m
- Stern: 10.50 ft / 3.20 m
- Average freeboard: 12.06 ft / 3.68 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 164.9 %
- Above water (accommodation/working, high = better): 117.2 %
Waterplane Area: 3,455 Square feet or 321 Square metres
Displacement factor (Displacement / loading): 77 %
Structure weight / hull surface area: 22 lbs/sq ft or 107 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.79
- Overall: 0.61
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
- 15 tons for electronics
- 20 tons for ASW fit

Ships in Class:
- Emilia: laid down 1928, refitted 1944.
- Leïla: laid down 1928, refitted 1944.
- Pasquin: laid down 1928, refitted 1944.
- Parséis: laid down 1928, refitted 1944. Experimental engine refit.
- Carmen: laid down 1928, refitted 1944.
- Cathérine: laid down 1928, refitted 1944.
- Marie: laid down 1928, refitted 1944.
- Bettina: laid down 1928, refitted 1944.
- Roxane: laid down 1928, refitted 1944.
- Laurette: laid down 1928, refitted 1944.
- Grisélidis: laid down 1928, refitted 1944.
- Vivette: laid down 1928, refitted 1944.
- Le Dancaïre: laid down 1928, refitted 1944.
- Micaëla: laid down 1928, refitted 1944.
- Frasquita: laid down 1928, refitted 1944.
- Véronique: laid down 1928, refitted 1944.

Notes
56 tons apiece to refit
94 tons to re-engine

Parséis was refitted with new engines (an experimental turbo-blown marine diesel) in January 1944. The other ships were not re-engined.