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1

Thursday, February 24th 2011, 3:46am

French Mine Warfare Ships

Faucon-class Minesweeper - 1925/1940
- Cantal
- Nièvre
- Yvelines
- Finistère
- Calvados
- Saintonge
- Dordogne
- Isère
- Bas-Rhin
- Hérault

Flower-class Minesweeper - 1940
- Aubepine
- Hortensia
- Tulipe
- Dahlia
- Capucine
- Petunia
- Jasmine
- Pâquerette

De Grasse class Minelayer Cruiser - 1919/1940
- De Grasse
- Dupleix
- Edgard Quinet
- Waldeck Rousseau

Arabe class Aviso-dragueurs - 1943
- Arabe: Laid down at Nouméa July 1943, completed April 1944
- Algérien: Laid down at Nouméa July 1943, completed April 1944
- Annamite: Laid down at Nouméa January 1944, completed October 1944
- Bambara: Laid down at Nouméa January 1944, completed October 1944
- Kabyle: Laid down at Nouméa July 1944, completed April 1945
- Marocain: Laid down at Nouméa July 1944, completed April 1945
- Tonkinois: Laid down at Nouméa January 1945, completed October 1945
- Touareg: Laid down at Nouméa January 1945, completed October 1945

Canard class Dragueurs - 1948
- Canard: Laid down at La Rochelle January 1948, completed May 1948
- Colombe: Laid down at La Rochelle January 1948, completed May 1948
- Coq: Laid down at La Rochelle January 1948, completed May 1948
- Faisan: Laid down at La Rochelle January 1948, completed May 1948
- Gelinotte: Laid down at La Rochelle April 1948, completed August 1948
- Heron: Laid down at La Rochelle April 1948, completed August 1948
- Pigeon: Laid down at La Rochelle April 1948, completed August 1948
- Pintade: Laid down at La Rochelle April 1948, completed August 1948
- Pluvier: Laid down at La Rochelle July 1948, completed November 1948
- Perdreau: Laid down at La Rochelle July 1948, completed November 1948
- Ramier: Laid down at La Rochelle July 1948, completed November 1948
- Tourterelle: Laid down at La Rochelle July 1948, completed November 1948
- Grèbe: Laid down at La Rochelle October 1948, completed February 1949
- Héron: Laid down at La Rochelle October 1948, completed February 1949
- Pingouin: Laid down at La Rochelle October 1948, completed February 1949
- Vanneau: Laid down at La Rochelle October 1948, completed February 1949

Aconit class Dragueurs - 1948
- Aconit: Laid down at La Rochelle January 1948, completed October 1948
- Alysse: Laid down at La Rochelle January 1948, completed October 1948
- Lobelia: Laid down at La Rochelle January 1948, completed October 1948
- Mimose: Laid down at La Rochelle January 1948, completed October 1948
- Renoncule: Laid down at La Rochelle April 1948, completed January 1949
- Roselys: Laid down at La Rochelle April 1948, completed January 1949
- Ciguë: Laid down at La Rochelle April 1948, completed January 1949
- Agave: Laid down at La Rochelle April 1948, completed January 1949
- Cèdre: Laid down at La Rochelle July 1948, completed April 1949
- Chène: Laid down at La Rochelle July 1948, completed April 1949
- Erable: Laid down at La Rochelle July 1948, completed April 1949
- Frêne: Laid down at La Rochelle July 1948, completed April 1949
- Hètre: Laid down at La Rochelle October 1948, completed July 1949
- Orme: Laid down at La Rochelle October 1948, completed July 1949
- Peuplier: Laid down at La Rochelle October 1948, completed July 1949
- Platane: Laid down at La Rochelle October 1948, completed July 1949

2

Thursday, February 24th 2011, 3:49am

Cantal (aka Faucon) class, French Mine warfare vessel laid down 1925
10 vessels

Displacement:
569 t light; 585 t standard; 696 t normal; 785 t full load

Dimensions: Length overall / water x beam x draught
229.66 ft / 229.66 ft x 23.95 ft x 9.84 ft (normal load)
70.00 m / 70.00 m x 7.30 m x 3.00 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1925 Model
Breech loading gun in deck mount
on centreline forward
2 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1925 Model
Breech loading guns in deck mounts
on side, all amidships
4 - 0.30" / 7.6 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1925 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 17 lbs / 8 kg
Shells per gun, main battery: 200
50 tons mines
50 tons mineclearing equipment

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 10,243 shp / 7,641 Kw = 27.00 kts
Range 4,200nm at 15.00 kts (Bunkerage = 199 tons)

Complement:
67 - 88

Cost:
£0.208 million / $0.834 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.3 %
Armour: 3 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 300 tons, 43.1 %
Hull, fittings & equipment: 164 tons, 23.6 %
Fuel, ammunition & stores: 127 tons, 18.2 %
Miscellaneous weights: 100 tons, 14.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
239 lbs / 109 Kg = 18.6 x 3.0 " / 75 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 0.8 ft / 0.3 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.59 : 1
'Natural speed' for length: 17.46 kts
Power going to wave formation at top speed: 69 %
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: 13.12 ft / 4.00 m
- Forecastle (20 %): 13.12 ft / 4.00 m
- Mid (50 %): 13.12 ft / 4.00 m (9.02 ft / 2.75 m aft of break)
- Quarterdeck (15 %): 9.02 ft / 2.75 m
- Stern: 9.02 ft / 2.75 m
- Average freeboard: 11.07 ft / 3.38 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 157.3 %
- Above water (accommodation/working, high = better): 113.1 %
Waterplane Area: 3,645 Square feet or 339 Square metres
Displacement factor (Displacement / loading): 89 %
Structure weight / hull surface area: 22 lbs/sq ft or 106 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.42
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

--------------------------------------------------------------------------------------------------------------------------------------------------------------

Cantal (aka Faucon) class refit, French Minesweeper laid down 1925 (Engine 1940)

Displacement:
565 t light; 582 t standard; 696 t normal; 787 t full load

Dimensions: Length overall / water x beam x draught
229.66 ft / 229.66 ft x 23.95 ft x 9.84 ft (normal load)
70.00 m / 70.00 m x 7.30 m x 3.00 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1940 Model
Dual purpose gun in deck mount
on centreline forward
2 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 0.30" / 7.6 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1925 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 17 lbs / 8 kg
Shells per gun, main battery: 300

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 10,242 shp / 7,641 Kw = 27.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 205 tons

Complement:
67 - 88

Cost:
£0.196 million / $0.784 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.3 %
Armour: 2 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 274 tons, 39.3 %
Hull, fittings & equipment: 187 tons, 26.9 %
Fuel, ammunition & stores: 131 tons, 18.8 %
Miscellaneous weights: 100 tons, 14.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
312 lbs / 141 Kg = 24.2 x 3.0 " / 75 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 0.8 ft / 0.2 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 0.99

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.59 : 1
'Natural speed' for length: 17.46 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 51
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: 13.12 ft / 4.00 m
- Forecastle (20 %): 13.12 ft / 4.00 m
- Mid (50 %): 13.12 ft / 4.00 m (9.02 ft / 2.75 m aft of break)
- Quarterdeck (15 %): 9.02 ft / 2.75 m
- Stern: 9.02 ft / 2.75 m
- Average freeboard: 11.07 ft / 3.38 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 145.5 %
- Above water (accommodation/working, high = better): 113.1 %
Waterplane Area: 3,644 Square feet or 339 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 25 lbs/sq ft or 120 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 2.75
- Overall: 0.67
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
- 2 tons for DRBV-2A surface and air-search radar
- 9 tons for depth charges (32x573-lb bombs)
- 4 tons for air conditioning
- 20 tons for minesweeping equipment
- 30 tons for six 5t minesweeping launches
- 5 tons for crane
- 10 tons for minehunting/ASW ASDIC
- 20 tons for all other miscellaneous gear

Ships in Class:
- Cantal
- Nièvre
- Yvelines
- Finistère
- Calvados
- Saintonge
- Dordogne
- Isère
- Bas-Rhin
- Hérault

Notes:
Referred to in most past reports as the Faucon class and unnamed; names added Q4/41 (Q1/2012) as fluff.

3

Thursday, February 24th 2011, 3:50am

Flower class, French Minesweeper laid down 1940

Displacement:
578 t light; 602 t standard; 763 t normal; 891 t full load

Dimensions: Length overall / water x beam x draught
193.58 ft / 183.73 ft x 32.81 ft x 9.84 ft (normal load)
59.00 m / 56.00 m x 10.00 m x 3.00 m

Armament:
1 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1940 Model
Dual purpose gun in deck mount
on centreline forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 30 lbs / 14 kg
Shells per gun, main battery: 450

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2,025 shp / 1,511 Kw = 16.50 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 289 tons

Complement:
72 - 94

Cost:
£0.186 million / $0.743 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.5 %
Machinery: 54 tons, 7.1 %
Hull, fittings & equipment: 370 tons, 48.5 %
Fuel, ammunition & stores: 185 tons, 24.2 %
Miscellaneous weights: 150 tons, 19.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,533 lbs / 1,149 Kg = 113.9 x 3.5 " / 90 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.1 ft / 0.3 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.450
Length to Beam Ratio: 5.60 : 1
'Natural speed' for length: 13.55 kts
Power going to wave formation at top speed: 57 %
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: 18.04 ft / 5.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m (14.76 ft / 4.50 m before break)
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 14.48 ft / 4.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 50.3 %
- Above water (accommodation/working, high = better): 154.0 %
Waterplane Area: 3,845 Square feet or 357 Square metres
Displacement factor (Displacement / loading): 265 %
Structure weight / hull surface area: 50 lbs/sq ft or 243 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 10.30
- Overall: 1.26
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:
- 2 tons for DRBV-2A surface and air-search radar
- 9 tons for depth charges (32x573-lb bombs)
- 4 tons for air conditioning
- 20 tons for minesweeping equipment
- 30 tons for two 10.4t minesweeping launches and gear
- 5 tons for crane
- 10 tons for minehunting/ASW ASDIC
- 70 tons for all other miscellaneous gear

Ships in Class:
- Aubepine
- Hortensia
- Tulipe
- Dahlia
- Capucine
- Petunia
- Jasmine
- Pâquerette

Minesweeping Launches: Two of these small craft are carried in order to assist with minesweeping duties. These are their specifications:
Length: 11m
Beam: 3.5m
Draft: 1.1m
Weight: 10,400 kilograms (10.4 tonnes)
Propulsion: 1 x 160hp diesel engine
Speed: 10 knots (full speed without sweep gear streamed)
Range: 160 km at full speed and load
Crew: 4 men

4

Thursday, February 24th 2011, 3:53am

De Grasse-class, French CL rebuilt as Minelayer Cruiser laid down 1919 (Engine 1940)

Displacement:
7,609 t light; 7,940 t standard; 8,869 t normal; 9,612 t full load

Dimensions: Length overall / water x beam x draught
572.90 ft / 551.18 ft x 55.77 ft x 22.97 ft (normal load)
174.62 m / 168.00 m x 17.00 m x 7.00 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
8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1940 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 851 lbs / 386 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 380.58 ft / 116.00 m 8.96 ft / 2.73 m
Ends: Unarmoured
Main Belt covers 106 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 1.18" / 30 mm 2.36" / 60 mm
2nd: 0.79" / 20 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 4.72" / 120 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 89,198 shp / 66,541 Kw = 33.00 kts
Range 8,500nm at 15.00 kts
Range 2,383nm at 25.00 kts
Bunker at max displacement = 1,673 tons

Complement:
456 - 594

Cost:
£1.542 million / $6.168 million

Distribution of weights at normal displacement:
Armament: 127 tons, 1.4 %
Armour: 1,331 tons, 15.0 %
- Belts: 497 tons, 5.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 82 tons, 0.9 %
- Armour Deck: 708 tons, 8.0 %
- Conning Tower: 44 tons, 0.5 %
Machinery: 2,385 tons, 26.9 %
Hull, fittings & equipment: 3,216 tons, 36.3 %
Fuel, ammunition & stores: 1,260 tons, 14.2 %
Miscellaneous weights: 550 tons, 6.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,680 lbs / 3,937 Kg = 108.2 x 5.4 " / 138 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.5 ft / 0.8 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.440
Length to Beam Ratio: 9.88 : 1
'Natural speed' for length: 23.48 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 57
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: 26.25 ft / 8.00 m
- Forecastle (20 %): 21.33 ft / 6.50 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 18.77 ft / 5.72 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106.1 %
- Above water (accommodation/working, high = better): 142.5 %
Waterplane Area: 19,448 Square feet or 1,807 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.68
- Overall: 1.03
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Breakdown of Miscellaneous Weights:
450 tons of naval mines on rails
100 tons radar etc.

Ships in Class:
- De Grasse
- Dupleix
- Georges Leygues
- Jean de Vienne

5

Thursday, September 21st 2017, 4:12pm



Arabe-class, French Aviso-dragueurs laid down 1943
The Arabe-class aviso-dragueurs are a class of vessels combining the roles of minesweepers and surface escorts.

Displacement:
634 t light; 672 t standard; 837 t normal; 970 t full load

Dimensions: Length overall / water x beam x draught
234.32 ft / 229.66 ft x 27.89 ft x 10.17 ft (normal load)
71.42 m / 70.00 m x 8.50 m x 3.10 m

Armament:
2 - 3.94" / 100 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 78 lbs / 36 kg
Shells per gun, main battery: 450

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.20" / 5 mm -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 8,405 shp / 6,270 Kw = 25.00 kts
Range 6,800nm at 15.00 kts
Bunker at max displacement = 298 tons

Complement:
77 - 101

Cost:
£0.391 million / $1.566 million

Distribution of weights at normal displacement:
Armament: 9 tons, 1.0 %
Armour: 3 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 217 tons, 25.9 %
Hull, fittings & equipment: 226 tons, 27.0 %
Fuel, ammunition & stores: 203 tons, 24.3 %
Miscellaneous weights: 180 tons, 21.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
547 lbs / 248 Kg = 17.9 x 3.9 " / 100 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 8.24 : 1
'Natural speed' for length: 17.69 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.39 ft / 5.30 m
- Forecastle (25 %): 16.08 ft / 4.90 m
- Mid (50 %): 14.76 ft / 4.50 m (8.53 ft / 2.60 m aft of break)
- Quarterdeck (15 %): 8.53 ft / 2.60 m
- Stern: 8.53 ft / 2.60 m
- Average freeboard: 12.27 ft / 3.74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 117.3 %
- Above water (accommodation/working, high = better): 119.7 %
Waterplane Area: 4,244 Square feet or 394 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 27 lbs/sq ft or 133 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.55
- Longitudinal: 2.94
- Overall: 0.65
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

Breakdown of Miscellaneous Weights:
- 17 tons for electronics
- 15 tons for hydrophones and ASDIC
- 17 tons for depth charges (64x573-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
- 60 tons for minesweeping equipment
180 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, 3 tons)
- ARBR-1L radar warning receiver (1 ton)
- DUBV-7 active sonar (7.5 tons)
- DUBV-7B passive sonar (7.5 tons)

Ships in Class:
Arabe / Chi Lang Group
- Arabe: Laid down at Nouméa July 1943, completed April 1944
- Annamite: Laid down at Nouméa January 1944, completed October 1944
- Algérien: Laid down at Nouméa July 1944, completed April 1945
- Bambara: Laid down at Nouméa January 1945, completed October 1945
Kabyle / Tay Cay Group
- Kabyle: Laid down at Nouméa July 1945, completed April 1946
- Marocain: Laid down at Nouméa July 1945, completed April 1946
- Tonkinois: Laid down at Nouméa January 1946, completed October 1946
- Touareg: Laid down at Nouméa January 1946, completed October 1946
Arabe / Chi Lang Group
- Chi Lang (ex-Algérien): Laid down at Nouméa July 1943, completed April 1944
- Van Kiep (ex-Bambara): Laid down at Nouméa January 1944, completed October 1944
- Dong Da: Laid down at Nouméa July 1944, completed April 1945
- Tuy Dong: Laid down at Nouméa January 1945, completed October 1945
Kabyle / Tay Cay Group
- Tay Cay: Laid down at Nouméa July 1946, completed April 1947
- Can Don: Laid down at Nouméa July 1946, completed April 1947
- Ngoc Hoi: Laid down at Saigon January 1947, completed October 1947
- Bach Dang: Laid down at Saigon January 1947, completed October 1947

6

Thursday, September 21st 2017, 4:14pm

Canard-class, French Coastal Minesweeper laid down 1948

Displacement:
175 t light; 180 t standard; 207 t normal; 229 t full load

Dimensions: Length overall / water x beam x draught
131.82 ft / 127.95 ft x 21.65 ft x 4.76 ft (normal load)
40.18 m / 39.00 m x 6.60 m x 1.45 m

Armament:
1 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1938 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1948 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 750

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

- Conning tower: 0.59" / 15 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 762 shp / 569 Kw = 15.00 kts
Range 3,500nm at 12.00 kts
Bunker at max displacement = 49 tons

Complement:
26 - 35

Cost:
£0.067 million / $0.267 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.2 %
Machinery: 19 tons, 9.0 %
Hull, fittings & equipment: 105 tons, 50.9 %
Fuel, ammunition & stores: 32 tons, 15.6 %
Miscellaneous weights: 50 tons, 24.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
516 lbs / 234 Kg = 264.3 x 1.6 " / 40 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.6 ft / 0.2 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.27

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.550
Length to Beam Ratio: 5.91 : 1
'Natural speed' for length: 11.31 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 42
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.44 ft / 4.40 m
- Forecastle (25 %): 13.78 ft / 4.20 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: 8.43 ft / 2.57 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 57.9 %
- Above water (accommodation/working, high = better): 92.9 %
Waterplane Area: 1,934 Square feet or 180 Square metres
Displacement factor (Displacement / loading): 230 %
Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.24
- Longitudinal: 5.63
- Overall: 1.44
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 5 tons for electronics
- 45 tons for minesweeping equipment

Electronics:
- 2 tons for DRBV-6C surface and air search radar
- 1 ton for ARBR-1L radar warning receiver
- 2 tons for primary G-15 active hydrophone

Ships in Class:
- Canard: Laid down at La Rochelle January 1948, completed May 1948
- Colombe: Laid down at La Rochelle January 1948, completed May 1948
- Coq: Laid down at La Rochelle January 1948, completed May 1948
- Faisan: Laid down at La Rochelle January 1948, completed May 1948
- Gelinotte: Laid down at La Rochelle April 1948, completed August 1948
- Heron: Laid down at La Rochelle April 1948, completed August 1948
- Pigeon: Laid down at La Rochelle April 1948, completed August 1948
- Pintade: Laid down at La Rochelle April 1948, completed August 1948
- Pluvier: Laid down at La Rochelle July 1948, completed November 1948
- Perdreau: Laid down at La Rochelle July 1948, completed November 1948
- Ramier: Laid down at La Rochelle July 1948, completed November 1948
- Tourterelle: Laid down at La Rochelle July 1948, completed November 1948
- Grèbe: Laid down at La Rochelle October 1948, completed February 1949
- Héron: Laid down at La Rochelle October 1948, completed February 1949
- Pingouin: Laid down at La Rochelle October 1948, completed February 1949
- Vanneau: Laid down at La Rochelle October 1948, completed February 1949

7

Thursday, September 21st 2017, 4:19pm

Aconit-class, French Minesweeper laid down 1948

Displacement:
715 t light; 736 t standard; 938 t normal; 1,100 t full load

Dimensions: Length overall / water x beam x draught
177.84 ft / 173.88 ft x 35.10 ft x 10.50 ft (normal load)
54.21 m / 53.00 m x 10.70 m x 3.20 m

Armament:
1 - 2.24" / 57.0 mm guns in single mounts, 6.61lbs / 3.00kg shells, 1942 Model
Anti-aircraft gun in deck mount
on centreline forward
1 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1934 Model
Machine gun in deck mount
on centreline aft
Weight of broadside 7 lbs / 3 kg
Shells per gun, main battery: 550

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,372 shp / 1,023 Kw = 15.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 364 tons

Complement:
84 - 110

Cost:
£0.226 million / $0.904 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.1 %
Machinery: 34 tons, 3.6 %
Hull, fittings & equipment: 530 tons, 56.5 %
Fuel, ammunition & stores: 223 tons, 23.8 %
Miscellaneous weights: 150 tons, 16.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,395 lbs / 1,994 Kg = 777.8 x 2.2 " / 57 mm shells or 2.6 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.88

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.512
Length to Beam Ratio: 4.95 : 1
'Natural speed' for length: 16.03 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.76 ft / 4.50 m
- Forecastle (20 %): 14.11 ft / 4.30 m
- Mid (40 %): 13.45 ft / 4.10 m
- Quarterdeck (15 %): 6.23 ft / 1.90 m (13.45 ft / 4.10 m before break)
- Stern: 6.23 ft / 1.90 m
- Average freeboard: 12.62 ft / 3.85 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 31.3 %
- Above water (accommodation/working, high = better): 131.5 %
Waterplane Area: 4,278 Square feet or 397 Square metres
Displacement factor (Displacement / loading): 421 %
Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.58
- Longitudinal: 9.24
- Overall: 1.89
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:
- 11 tons for electronics
- 4 tons for air conditioning
- 30 tons for minesweeping equipment
- 30 tons for two 10.4t minesweeping launches and gear
- 5 tons for crane
- 70 tons for all other miscellaneous gear

Electronics:
- 2 tons for DRBV-6C surface and air search radar
- 1 ton for ARBR-1L radar warning receiver
- 4 tons for two G-15 active hydrophones
- 4 tons for two G-13 passive hydrophones

Ships in Class:
- Aconit: Laid down at La Rochelle January 1948, completed October 1948
- Alysse: Laid down at La Rochelle January 1948, completed October 1948
- Lobelia: Laid down at La Rochelle January 1948, completed October 1948
- Mimose: Laid down at La Rochelle January 1948, completed October 1948
- Renoncule: Laid down at Marseilles April 1948, completed January 1949
- Roselys: Laid down at Marseilles April 1948, completed January 1949
- Ciguë: Laid down at Marseilles April 1948, completed January 1949
- Agave: Laid down at Marseilles April 1948, completed January 1949
- Cèdre: Laid down at La Rochelle July 1948, completed April 1949
- Chène: Laid down at La Rochelle July 1948, completed April 1949
- Erable: Laid down at La Rochelle July 1948, completed April 1949
- Frêne: Laid down at La Rochelle July 1948, completed April 1949
- Hètre: Laid down at La Rochelle October 1948, completed July 1949
- Orme: Laid down at La Rochelle October 1948, completed July 1949
- Peuplier: Laid down at La Rochelle October 1948, completed July 1949
- Platane: Laid down at La Rochelle October 1948, completed July 1949