WesWorld

Again, if the SF Treaty talks fail.

Aircraft carrier St. Cyr uses a a modified Dunkirque hull.

St. Cyr, French Aircraft Carrier laid down 1935

Displacement:
30,389 t light; 31,227 t standard; 35,943 t normal; 39,716 t full load

Dimensions: Length overall / water x beam x draught
721.49 ft / 711.94 ft x 82.02 ft (Bulges 98.43 ft) x 31.50 ft (normal load)
219.91 m / 217.00 m x 25.00 m (Bulges 30.00 m) x 9.60 m

Armament:
12 - 4.72" / 120 mm guns (6x2 guns), 61.73lbs / 28.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
36 - 1.57" / 40.0 mm guns (9x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, majority forward, 4 raised mounts - superfiring
Weight of broadside 811 lbs / 368 kg
Shells per gun, main battery: 250

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 490.49 ft / 149.50 m 13.12 ft / 4.00 m
Ends: 1.18" / 30 mm 221.46 ft / 67.50 m 9.84 ft / 3.00 m
Upper: 1.97" / 50 mm 490.49 ft / 149.50 m 27.56 ft / 8.40 m
Main Belt covers 106 % of normal length

- Torpedo Bulkhead and Bulges:
1.57" / 40 mm 490.49 ft / 149.50 m 32.81 ft / 10.00 m

- 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 -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 201,373 shp / 150,224 Kw = 34.00 kts
Range 12,800nm at 18.00 kts
Bunker at max displacement = 8,489 tons

Complement:
1,304 - 1,696

Cost:
£9.868 million / $39.472 million

Distribution of weights at normal displacement:
Armament: 88 tons, 0.2 %
Armour: 5,616 tons, 15.6 %
- Belts: 2,059 tons, 5.7 %
- Torpedo bulkhead: 938 tons, 2.6 %
- Armament: 26 tons, 0.1 %
- Armour Deck: 2,520 tons, 7.0 %
- Conning Tower: 74 tons, 0.2 %
Machinery: 5,721 tons, 15.9 %
Hull, fittings & equipment: 10,449 tons, 29.1 %
Fuel, ammunition & stores: 5,554 tons, 15.5 %
Miscellaneous weights: 8,515 tons, 23.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
50,736 lbs / 23,013 Kg = 962.3 x 4.7 " / 120 mm shells or 6.8 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 4.6 ft / 1.4 m
Roll period: 19.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.58

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.570
Length to Beam Ratio: 7.23 : 1
'Natural speed' for length: 31.02 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 13.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 41.34 ft / 12.60 m
- Forecastle (17 %): 41.34 ft / 12.60 m
- Mid (50 %): 41.34 ft / 12.60 m (26.25 ft / 8.00 m aft of break)
- Quarterdeck (15 %): 26.25 ft / 8.00 m
- Stern: 28.87 ft / 8.80 m
- Average freeboard: 33.99 ft / 10.36 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106.0 %
- Above water (accommodation/working, high = better): 212.1 %
Waterplane Area: 43,250 Square feet or 4,018 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 129 lbs/sq ft or 630 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.61
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
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

90 aircraft, plus 16 spares
Air search radar - 20 tons


And, at long last, the Paris class gets started:

Paris class, French Battlecruiser laid down 1935

Paris
Lyon

Displacement:
41,518 t light; 43,627 t standard; 49,069 t normal; 53,423 t full load

Dimensions: Length overall / water x beam x draught
885.31 ft / 875.00 ft x 90.55 ft (Bulges 106.96 ft) x 32.48 ft (normal load)
269.84 m / 266.70 m x 27.60 m (Bulges 32.60 m) x 9.90 m

Armament:
6 - 15.00" / 381 mm guns (2x3 guns), 2,039.28lbs / 925.00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
6 - 9.45" / 240 mm guns (2x3 guns), 551.16lbs / 250.00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
12 - 4.72" / 120 mm guns (6x2 guns), 61.73lbs / 28.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
32 - 1.57" / 40.0 mm guns (8x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 4 raised mounts
Weight of broadside 16,361 lbs / 7,421 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.8" / 300 mm 509.19 ft / 155.20 m 13.12 ft / 4.00 m
Ends: 1.18" / 30 mm 365.81 ft / 111.50 m 9.84 ft / 3.00 m
Main Belt covers 90 % of normal length

- Torpedo Bulkhead and Bulges:
1.57" / 40 mm 509.19 ft / 155.20 m 33.79 ft / 10.30 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 7.87" / 200 mm 11.0" / 280 mm
2nd: 13.8" / 350 mm 7.87" / 200 mm 11.0" / 280 mm
3rd: 0.98" / 25 mm 0.20" / 5 mm -
4th: 0.98" / 25 mm 0.20" / 5 mm -
5th: 0.98" / 25 mm 0.20" / 5 mm -

- Armour deck: 4.72" / 120 mm, Conning tower: 11.81" / 300 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 225,816 shp / 168,459 Kw = 34.00 kts
Range 12,000nm at 18.00 kts
Bunker at max displacement = 9,796 tons

Complement:
1,647 - 2,142

Cost:
£19.115 million / $76.460 million

Distribution of weights at normal displacement:
Armament: 1,671 tons, 3.4 %
Armour: 13,274 tons, 27.1 %
- Belts: 3,520 tons, 7.2 %
- Torpedo bulkhead: 1,003 tons, 2.0 %
- Armament: 3,305 tons, 6.7 %
- Armour Deck: 5,104 tons, 10.4 %
- Conning Tower: 341 tons, 0.7 %
Machinery: 6,415 tons, 13.1 %
Hull, fittings & equipment: 20,038 tons, 40.8 %
Fuel, ammunition & stores: 7,551 tons, 15.4 %
Miscellaneous weights: 120 tons, 0.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
73,659 lbs / 33,411 Kg = 43.6 x 15.0 " / 381 mm shells or 10.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 5.2 ft / 1.6 m
Roll period: 19.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.565
Length to Beam Ratio: 8.18 : 1
'Natural speed' for length: 34.05 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 54
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 41.34 ft / 12.60 m
- Forecastle (26 %): 29.86 ft / 9.10 m
- Mid (55 %): 29.53 ft / 9.00 m
- Quarterdeck (15 %): 29.53 ft / 9.00 m
- Stern: 31.17 ft / 9.50 m
- Average freeboard: 30.96 ft / 9.44 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.5 %
- Above water (accommodation/working, high = better): 200.0 %
Waterplane Area: 58,403 Square feet or 5,426 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 209 lbs/sq ft or 1,018 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.52
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Air search radar - 20 tons
Surface search Radar - 20 tons
2 Seaplanes, 1 Catapult
30 tons misc weight


And there's four light cruisers, similar to the Caledonie of 1932:

Algerie
Tunisie
Syria
Lebanon

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

Aviation - 2 Seaplanes, 1 Catapult

Air search radar - 20 tons
Surface search radar- 20 tons

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

Regarding the main armament of the St. Cyr...

Quoted

on centreline ends, evenly spread

On the Algerie class, the BC of 0.443 seems pretty low for a ship mounting triple 6" turrets on a beam of only 17.3m.

For the carrier, 217 * 25 / 70 = 77.5 aircraft that can be carried.

St. Cyr, French Aircraft Carrier laid down 1935

Displacement:
28,624 t light; 29,463 t standard; 34,051 t normal; 37,722 t full load

Dimensions: Length overall / water x beam x draught
721.41 ft / 711.94 ft x 82.02 ft (Bulges 98.43 ft) x 29.53 ft (normal load)
219.89 m / 217.00 m x 25.00 m (Bulges 30.00 m) x 9.00 m

Armament:
12 - 4.72" / 120 mm guns (6x2 guns), 61.73lbs / 28.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
64 - 1.57" / 40.0 mm guns (16x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 6 raised mounts
Weight of broadside 866 lbs / 393 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 469.16 ft / 143.00 m 13.12 ft / 4.00 m
Ends: 1.18" / 30 mm 242.78 ft / 74.00 m 9.84 ft / 3.00 m
Upper: 1.97" / 50 mm 469.16 ft / 143.00 m 27.56 ft / 8.40 m
Main Belt covers 101 % of normal length

- Torpedo Bulkhead and Bulges:
2.36" / 60 mm 469.16 ft / 143.00 m 32.81 ft / 10.00 m

- 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 -

- Armour deck: 3.54" / 90 mm, Conning tower: 3.94" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 195,885 shp / 146,130 Kw = 34.00 kts
Range 12,800nm at 18.00 kts
Bunker at max displacement = 8,260 tons

Complement:
1,253 - 1,629

Cost:
£9.472 million / $37.886 million

Distribution of weights at normal displacement:
Armament: 95 tons, 0.3 %
Armour: 6,418 tons, 18.8 %
- Belts: 2,100 tons, 6.2 %
- Torpedo bulkhead: 1,345 tons, 4.0 %
- Armament: 33 tons, 0.1 %
- Armour Deck: 2,851 tons, 8.4 %
- Conning Tower: 89 tons, 0.3 %
Machinery: 5,565 tons, 16.3 %
Hull, fittings & equipment: 10,151 tons, 29.8 %
Fuel, ammunition & stores: 5,427 tons, 15.9 %
Miscellaneous weights: 6,395 tons, 18.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,744 lbs / 23,924 Kg = 1,000.4 x 4.7 " / 120 mm shells or 7.7 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 5.0 ft / 1.5 m
Roll period: 18.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.52

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.576
Length to Beam Ratio: 7.23 : 1
'Natural speed' for length: 31.00 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 13.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 41.01 ft / 12.50 m
- Forecastle (17 %): 41.01 ft / 12.50 m
- Mid (50 %): 41.01 ft / 12.50 m (24.61 ft / 7.50 m aft of break)
- Quarterdeck (15 %): 24.61 ft / 7.50 m
- Stern: 26.25 ft / 8.00 m
- Average freeboard: 32.93 ft / 10.04 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.4 %
- Above water (accommodation/working, high = better): 215.4 %
Waterplane Area: 43,500 Square feet or 4,041 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 129 lbs/sq ft or 630 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.36
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
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

75 aircraft, plus 16 spares

Air search radar - 20 tons

AOC - 250 tons

Misc - 105 tons

Using a modified battlecruiser hull probably isn't a good idea....of course it depends on how "modified" it is. Really you want fuller lines forwards to help with acceleration and turning ability - both more important than all-out speed for carriers.

Really I think you're hamstrung by the Type 3 dock requirement. There isn't really enough space for a large catapult and larger planes. Should be fine for the current generation of early monoplanes but suffers afterwards. I'd cut it in half and use the tonnage to build two light fleet carriers.

What does AOC stand for?

for a high-speed design, with a cb of .576. Speed is important in this case, because of the ships St. Cyr willl be running with. She'll be part of the French Pacific fleet, providing air cover/recon for a battle group consisting of Paris, Lyon, Richelieu, Courbet, Indochinie, and Caledonie. They will defend French Pacific possessions from invasion by posing threats against numerous enemy vulnerabilities, causing enemy forces to disperse to protect them. In the event the enemy concentrates to attack anyway, French Pacific possessions have sufficient land-based air, coast artillery, light forces, and submarines to tie down the enemy main effort and permit the battle group freedom of action.

To do all this, the units of this group have long range at high speed.

A possible follow-on CV on the Paris hull will depend on S4 availability.

AOC=Air Operations Center

The others of her class, Provence and Bretagne, were rebuilt in 1931. Lorraine's rebuild is similar: new engines, bow, new liners for main armament, new secondary and antiaircraft batteries, and antitorpedo bulges. A disinction is the addition of radars. When complete, Lorraine will become the flagship of 2nd Battle Squadron, due to her improved information-gathering capabilities.

Lorraine, French Battleship laid down 1912 (Engine 1935)

Displacement:
20,939 t light; 22,239 t standard; 25,342 t normal; 27,824 t full load

Dimensions: Length overall / water x beam x draught
547.90 ft / 547.90 ft x 92.85 ft (Bulges 96.13 ft) x 28.54 ft (normal load)
167.00 m / 167.00 m x 28.30 m (Bulges 29.30 m) x 8.70 m

Armament:
10 - 13.39" / 340 mm guns (5x2 guns), 1,322.77lbs / 600.00kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread, 2 raised mounts
12 - 4.72" / 120 mm guns (6x2 guns), 61.73lbs / 28.00kg shells, 1931 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
48 - 1.57" / 40.0 mm guns (8 mounts), 1.95lbs / 0.88kg shells, 1931 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 32 raised guns
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1931 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 14,062 lbs / 6,379 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.6" / 270 mm 331.36 ft / 101.00 m 12.47 ft / 3.80 m
Ends: Unarmoured
Main Belt covers 93 % of normal length

- Torpedo Bulkhead and Bulges:
1.57" / 40 mm 331.36 ft / 101.00 m 27.56 ft / 8.40 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.7" / 400 mm 7.87" / 200 mm 9.84" / 250 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: 5.12" / 130 mm, Conning tower: 12.40" / 315 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 49,054 shp / 36,594 Kw = 23.35 kts
Range 9,100nm at 18.00 kts
Bunker at max displacement = 5,585 tons

Complement:
1,003 - 1,305

Cost:
£2.263 million / $9.054 million

Distribution of weights at normal displacement:
Armament: 1,590 tons, 6.3 %
Armour: 8,631 tons, 34.1 %
- Belts: 1,974 tons, 7.8 %
- Torpedo bulkhead: 532 tons, 2.1 %
- Armament: 2,404 tons, 9.5 %
- Armour Deck: 3,490 tons, 13.8 %
- Conning Tower: 231 tons, 0.9 %
Machinery: 1,394 tons, 5.5 %
Hull, fittings & equipment: 9,235 tons, 36.4 %
Fuel, ammunition & stores: 4,403 tons, 17.4 %
Miscellaneous weights: 90 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
33,506 lbs / 15,198 Kg = 27.9 x 13.4 " / 340 mm shells or 6.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 5.6 ft / 1.7 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.590
Length to Beam Ratio: 5.70 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 48
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: 27.89 ft / 8.50 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 19.69 ft / 6.00 m (12.47 ft / 3.80 m aft of break)
- Quarterdeck (15 %): 12.47 ft / 3.80 m
- Stern: 12.47 ft / 3.80 m
- Average freeboard: 16.73 ft / 5.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.2 %
- Above water (accommodation/working, high = better): 110.6 %
Waterplane Area: 36,860 Square feet or 3,424 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 183 lbs/sq ft or 895 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.59
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

Air search radar - 20 tons
Surface search radar - 20 tons

Quoted

Originally posted by Hrolf Hakonson
On the Algerie class, the BC of 0.443 seems pretty low for a ship mounting triple 6" turrets on a beam of only 17.3m.

This is still true. Hey, HOo, oh keeper of the sacred block coefficient!!!!

The forecastle is longer than usual, so the forward barbettes don't begin until the hull has widened quite a bit.

And the historical Emile Bertin got 3x3 155mm on 15.84 meters of beam.