France 1870 restart

[Jefgte]

Inspired from the "Redoutable", a central citadel BB-A

Central Citadel 1st class BB, France BB-A laid down 1870
Barbette ship

Displacement:
   9 560 t light; 9 953 t standard; 10 578 t normal; 11 078 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (336.00 ft / 330.00 ft) x 44.00 ft (Bulges 66.00 ft) x (26.23 / 27.81 ft)
   (102.41 m / 100.58 m) x 13.41 m (Bulges 20.12 m)  x (8.00 / 8.48 m)

Armament:
      2 - 10.77" / 274 mm 20.0 cal guns - 468.49lbs / 212.50kg shells, 70 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     2 x Single mounts on centreline ends, bow & stern
      6 - 10.77" / 274 mm 20.0 cal guns - 468.49lbs / 212.50kg shells, 70 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     6 x Single mounts on sides, forward deck aft - citadel
      8 - 5.50" / 140 mm 30.0 cal guns - 64.15lbs / 29.10kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.85" / 47.0 mm 30.0 cal guns - 2.44lbs / 1.11kg shells, 150 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 4 281 lbs / 1 942 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.8" / 350 mm   324.00 ft / 98.76 m   7.24 ft / 2.21 m
   Ends:   Unarmoured
   Upper for citadel:   13.8" / 350 mm   100.00 ft / 30.48 m   14.48 ft / 4.41 m
     Main Belt covers 151 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         9.45" / 240 mm
   2nd:         -            -         9.45" / 240 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 0.99" / 25 mm
   Forecastle: 0.99" / 25 mm  Quarter deck: 0.99" / 25 mm

   - Conning towers: Forward 5.90" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 5 719 ihp / 4 267 Kw = 14.00 kts
   Range 3 000nm at 8.00 kts
   Bunker at max displacement = 1 124 tons (100% coal)

Complement:
   520 - 677

Cost:
   £0.657 million / $2.627 million

Distribution of weights at normal displacement:
   Armament: 417 tons, 3.9 %
      - Guns: 417 tons, 3.9 %
   Armour: 3 856 tons, 36.5 %
      - Belts: 2 295 tons, 21.7 %
      - Armament: 1 295 tons, 12.2 %
      - Armour Deck: 205 tons, 1.9 %
      - Conning Tower: 61 tons, 0.6 %
   Machinery: 1 402 tons, 13.3 %
   Hull, fittings & equipment: 3 405 tons, 32.2 %
   Fuel, ammunition & stores: 1 018 tons, 9.6 %
   Miscellaneous weights: 480 tons, 4.5 %
      - On freeboard deck: 80 tons
      - Above deck: 400 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11 151 lbs / 5 058 Kg = 25.5 x 10.8 " / 274 mm shells or 2.7 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 19.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.648 / 0.640
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 18.17 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10.00 %,  22.00 ft / 6.71 m,  21.00 ft / 6.40 m
      - Forward deck:   25.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Aft deck:   40.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Quarter deck:   25.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Average freeboard:      18.34 ft / 5.59 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 55.9 %
      - Above water (accommodation/working, high = better): 73.2 %
   Waterplane Area: 11 103 Square feet or 1 031 Square metres
   Displacement factor (Displacement / loading): 127 %
   Structure weight / hull surface area: 149 lbs/sq ft or 729 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 4.33
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Jefgte]

Central Citadel 2nd class BB, France BB-B laid down 1870
Barbette ship

Displacement:
   6 300 t light; 6 561 t standard; 7 047 t normal; 7 436 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (306.00 ft / 300.00 ft) x 44.00 ft (Bulges 60.00 ft) x (21.41 / 22.77 ft)
   (93.27 m / 91.44 m) x 13.41 m (Bulges 18.29 m)  x (6.53 / 6.94 m)

Armament:
      2 - 9.45" / 240 mm 20.0 cal guns - 316.48lbs / 143.55kg shells, 80 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     2 x Single mounts on centreline ends, bow & stern
      4 - 9.45" / 240 mm 20.0 cal guns - 316.48lbs / 143.55kg shells, 80 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     4 x Single mounts on sides, forward deck aft - citadel
      8 - 5.50" / 140 mm 30.0 cal guns - 64.15lbs / 29.10kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.85" / 47.0 mm 30.0 cal guns - 2.44lbs / 1.11kg shells, 150 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 2 432 lbs / 1 103 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   296.00 ft / 90.22 m   6.24 ft / 1.90 m
   Ends:   Unarmoured
   Upper for citadel:   7.87" / 200 mm     80.00 ft / 24.38 m   14.48 ft / 4.41 m
     Main Belt covers 152 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         9.45" / 240 mm
   2nd:         -            -         9.45" / 240 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 0.99" / 25 mm
   Forecastle: 0.99" / 25 mm  Quarter deck: 0.99" / 25 mm

   - Conning towers: Forward 5.90" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 4 586 ihp / 3 421 Kw = 14.00 kts
   Range 3 000nm at 8.00 kts
   Bunker at max displacement = 875 tons (100% coal)

Complement:
   383 - 499

Cost:
   £0.450 million / $1.800 million

Distribution of weights at normal displacement:
   Armament: 281 tons, 4.0 %
      - Guns: 281 tons, 4.0 %
   Armour: 2 091 tons, 29.7 %
      - Belts: 1 076 tons, 15.3 %
      - Armament: 784 tons, 11.1 %
      - Armour Deck: 185 tons, 2.6 %
      - Conning Tower: 47 tons, 0.7 %
   Machinery: 1 124 tons, 16.0 %
   Hull, fittings & equipment: 2 444 tons, 34.7 %
   Fuel, ammunition & stores: 747 tons, 10.6 %
   Miscellaneous weights: 360 tons, 5.1 %
      - On freeboard deck: 60 tons
      - Above deck: 300 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 421 lbs / 3 366 Kg = 25.1 x 9.5 " / 240 mm shells or 2.0 torpedoes
   Stability (Unstable if below 1.00): 1.26
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 16.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.640 / 0.635
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 44 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   12.00 %,  21.00 ft / 6.40 m,  20.00 ft / 6.10 m
      - Forward deck:   25.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Aft deck:   38.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Quarter deck:   25.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Average freeboard:      17.41 ft / 5.31 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 63.2 %
      - Above water (accommodation/working, high = better): 84.7 %
   Waterplane Area: 10 019 Square feet or 931 Square metres
   Displacement factor (Displacement / loading): 131 %
   Structure weight / hull surface area: 132 lbs/sq ft or 643 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 4.14
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[KWorld]

I don't know that there's enough deck space for all those guns on the sides, I suspect some will need to move up or down a deck.

Interesting layout as well, with the short forecastle and long quarterdeck.

VERY shallow main belt, I see.  The upper belt, on the other hand, is quite tall, but doesn't cover much of the hulls length.  What's it trying to cover?

Also, the tonnage allocated (I'm guessing) to masts & sails is too low, it needs to be 5% of the ship's NORMAL tonnage.

[Jefgte]

I don't know that there's enough deck space for all those guns on the sides, I suspect some will need to move up or down a deck.

Interesting layout as well, with the short forecastle and long quarterdeck.

Probably enough space for the 140mm guns, 2 main guns x Single mounts are on centreline ends, bow & stern

VERY shallow main belt, I see.  The upper belt, on the other hand, is quite tall, but doesn't cover much of the hulls length.  What's it trying to cover?

Belt height could be increase & displacement too...

The upper belt cover the citadel.

[KWorld]

I don't know that there's enough deck space for all those guns on the sides, I suspect some will need to move up or down a deck.

Interesting layout as well, with the short forecastle and long quarterdeck.

Probably enough space for the 140mm guns, 2 main guns x Single mounts are on centreline ends, bow & stern

The space between the forecastle and the quartereck is (93.27 * 0.63) = 58.76m
There's enough room for the 240mms: each side needs (((240mm * 20) * 2)  * 4) = 38.4m (this just accounts for the room needed to swing the barrels)

The 140mms would need an additional (((140 * 30) * 2) * 4) = 33.6m (again, just to swing the barrels).

So, no, not enough room.

VERY shallow main belt, I see.  The upper belt, on the other hand, is quite tall, but doesn't cover much of the hulls length.  What's it trying to cover?

Belt height could be increase & displacement too...

The upper belt cover the citadel.

Only 80 feet?  I could see it if it's a couple strips covering the 240mm barbettes, but they're already armored.

[Jefgte]

Forecastle:   12.00 %,  21.00 ft / 6.40 m,  20.00 ft / 6.10 m
      - Forward deck:   25.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Aft deck:   38.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Quarter deck:   25.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Average freeboard:      17.41 ft / 5.31 m

Decks ratio are wrong & must be reSS.
Futur ratio "ll be finalised by study drawing.

Jef

[Jefgte]

Certainly a better SS for BB-A  :)

Central Citadel BB, France BB-A laid down 1870
Barbette ship

Displacement:
   9 780 t light; 10 178 t standard; 10 810 t normal; 11 316 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (334.65 ft / 328.08 ft) x 52.49 ft (Bulges 65.62 ft) x (27.12 / 28.47 ft)
   (102.00 m / 100.00 m) x 16.00 m (Bulges 20.00 m)  x (8.27 / 8.68 m)

Armament:
      2 - 10.79" / 274 mm 20.0 cal guns - 470.76lbs / 213.54kg shells, 70 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      6 - 10.79" / 274 mm 20.0 cal guns - 470.76lbs / 213.54kg shells, 70 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     6 x Single mounts on sides, forward deck aft
      8 - 5.51" / 140 mm 30.0 cal guns - 64.57lbs / 29.29kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.85" / 47.0 mm 30.0 cal guns - 2.44lbs / 1.11kg shells, 150 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 4 302 lbs / 1 951 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.8" / 350 mm   328.08 ft / 100.00 m   7.87 ft / 2.40 m
   Upper:   11.8" / 300 mm   111.55 ft / 34.00 m   14.11 ft / 4.30 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         9.45" / 240 mm
   2nd:         -            -         9.45" / 240 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 1.38" / 35 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 5 797 ihp / 4 325 Kw = 14.00 kts
   Range 3 000nm at 8.00 kts
   Bunker at max displacement = 1 138 tons (100% coal)

Complement:
   529 - 689

Cost:
   £0.668 million / $2.671 million

Distribution of weights at normal displacement:
   Armament: 419 tons, 3.9 %
      - Guns: 419 tons, 3.9 %
   Armour: 3 967 tons, 36.7 %
      - Belts: 2 298 tons, 21.3 %
      - Armament: 1 277 tons, 11.8 %
      - Armour Deck: 330 tons, 3.1 %
      - Conning Tower: 62 tons, 0.6 %
   Machinery: 1 421 tons, 13.1 %
   Hull, fittings & equipment: 3 423 tons, 31.7 %
   Fuel, ammunition & stores: 1 031 tons, 9.5 %
   Miscellaneous weights: 550 tons, 5.1 %
      - Above deck: 550 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11 995 lbs / 5 441 Kg = 27.3 x 10.8 " / 274 mm shells or 2.8 torpedoes
   Stability (Unstable if below 1.00): 1.19
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 17.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.68
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a round stern
   Block coefficient (normal/deep): 0.648 / 0.646
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 18.11 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10.00 %,  21.98 ft / 6.70 m,  21.00 ft / 6.40 m
      - Forward deck:   40.00 %,  17.72 ft / 5.40 m,  17.72 ft / 5.40 m
      - Aft deck:   40.00 %,  17.72 ft / 5.40 m,  17.72 ft / 5.40 m
      - Quarter deck:   10.00 %,  17.72 ft / 5.40 m,  17.72 ft / 5.40 m
      - Average freeboard:      18.08 ft / 5.51 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 55.4 %
      - Above water (accommodation/working, high = better): 84.0 %
   Waterplane Area: 13 169 Square feet or 1 223 Square metres
   Displacement factor (Displacement / loading): 126 %
   Structure weight / hull surface area: 152 lbs/sq ft or 741 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 3.75
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Jefgte]

ReSS Central Citadel 2nd class BB, France BB-B laid down 1870
Barbette ship

Displacement:
   6 360 t light; 6 622 t standard; 7 109 t normal; 7 498 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (301.84 ft / 295.28 ft) x 45.93 ft (Bulges 59.06 ft) x (22.43 / 23.76 ft)
   (92.00 m / 90.00 m) x 14.00 m (Bulges 18.00 m)  x (6.84 / 7.24 m)

Armament:
      2 - 9.45" / 240 mm 20.0 cal guns - 316.48lbs / 143.55kg shells, 80 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 9.45" / 240 mm 20.0 cal guns - 316.48lbs / 143.55kg shells, 80 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     4 x Single mounts on sides, forward deck aft
      8 - 5.51" / 140 mm 30.0 cal guns - 64.57lbs / 29.29kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.85" / 47.0 mm 30.0 cal guns - 2.44lbs / 1.11kg shells, 150 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 2 435 lbs / 1 104 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   295.28 ft / 90.00 m   7.87 ft / 2.40 m
   Upper:   7.87" / 200 mm     78.74 ft / 24.00 m   13.12 ft / 4.00 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         9.45" / 240 mm
   2nd:         -            -         9.45" / 240 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 5.90" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 4 614 ihp / 3 442 Kw = 14.00 kts
   Range 3 000nm at 8.00 kts
   Bunker at max displacement = 876 tons (100% coal)

Complement:
   386 - 503

Cost:
   £0.453 million / $1.813 million

Distribution of weights at normal displacement:
   Armament: 281 tons, 4.0 %
      - Guns: 281 tons, 4.0 %
   Armour: 2 163 tons, 30.4 %
      - Belts: 1 141 tons, 16.1 %
      - Armament: 787 tons, 11.1 %
      - Armour Deck: 188 tons, 2.7 %
      - Conning Tower: 47 tons, 0.7 %
   Machinery: 1 131 tons, 15.9 %
   Hull, fittings & equipment: 2 409 tons, 33.9 %
   Fuel, ammunition & stores: 749 tons, 10.5 %
   Miscellaneous weights: 375 tons, 5.3 %
      - Above deck: 375 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 477 lbs / 3 391 Kg = 25.3 x 9.5 " / 240 mm shells or 2.0 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 16.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.636 / 0.633
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10.00 %,  21.33 ft / 6.50 m,  20.34 ft / 6.20 m
      - Forward deck:   40.00 %,  17.06 ft / 5.20 m,  17.06 ft / 5.20 m
      - Aft deck:   40.00 %,  17.06 ft / 5.20 m,  17.06 ft / 5.20 m
      - Quarter deck:   10.00 %,  17.06 ft / 5.20 m,  17.06 ft / 5.20 m
      - Average freeboard:      17.43 ft / 5.31 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 63.0 %
      - Above water (accommodation/working, high = better): 86.3 %
   Waterplane Area: 10 257 Square feet or 953 Square metres
   Displacement factor (Displacement / loading): 130 %
   Structure weight / hull surface area: 132 lbs/sq ft or 643 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 4.22
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[KWorld]

Both of these are suffering from the same problem as the previous version of the last design: not nearly enough room on the main deck for the guns to swing and be fought.

[Jefgte]

Both of these are suffering from the same problem as the previous version of the last design: not nearly enough room on the main deck for the guns to swing and be fought.

Study drawings are necessary.

[KWorld]

The BB needs AT LEAST 54.8m for just the 274mm guns [((0.274 * 20) * 2) * 5) = 54.8 m], and it only has 81.6m of usable length.  There's barely enough space for the main battery to be on the main deck without blast damage between the open barbettes, without adding the 140mm guns to the mix.

[Jefgte]

Eclaireur, France cruiser laid down 1870

Displacement:
   4 100 t light; 4 212 t standard; 4 590 t normal; 4 893 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (318.24 ft / 311.68 ft) x 49.21 ft x (17.46 / 18.40 ft)
   (97.00 m / 95.00 m) x 15.00 m  x (5.32 / 5.61 m)

Armament:
      2 - 5.51" / 140 mm 30.0 cal guns - 64.57lbs / 29.29kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 3.94" / 100.0 mm 30.0 cal guns - 23.53lbs / 10.67kg shells, 180 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on centreline, aft deck forward
      4 - 1.85" / 47.0 mm 30.0 cal guns - 2.44lbs / 1.11kg shells, 200 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on centreline, aft deck forward
      4 raised mounts
      32 - 0.51" / 13.0 mm 45.0 cal guns - 0.06lbs / 0.03kg shells, 1 000 per gun
     Machine guns in deck mounts, 1870 Model
     2 x 4 row quad mounts on sides, forward deck forward
      Weight of broadside 235 lbs / 107 kg
      Main Torpedoes
      2 - 14.0" / 356 mm, 14.00 ft / 4.27 m torpedoes - 0.068 t each, 0.137 t total
   In 2 sets of deck mounted carriage/fixed tubes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.50" / 13 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 0.79" / 20 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 8 894 ihp / 6 635 Kw = 18.00 kts
   Range 3 000nm at 8.00 kts
   Bunker at max displacement = 681 tons (100% coal)

Complement:
   278 - 362

Cost:
   £0.455 million / $1.821 million

Distribution of weights at normal displacement:
   Armament: 25 tons, 0.6 %
      - Guns: 25 tons, 0.6 %
      - Weapons: 0 tons, 0.0 %
   Armour: 166 tons, 3.6 %
      - Armament: 16 tons, 0.4 %
      - Armour Deck: 150 tons, 3.3 %
   Machinery: 2 169 tons, 47.3 %
   Hull, fittings & equipment: 1 469 tons, 32.0 %
   Fuel, ammunition & stores: 491 tons, 10.7 %
   Miscellaneous weights: 270 tons, 5.9 %
      - Hull below water: 40 tons
      - Above deck: 230 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1 527 lbs / 693 Kg = 26.1 x 5.5 " / 140 mm shells or 10.3 torpedoes
   Stability (Unstable if below 1.00): 1.60
   Metacentric height 3.8 ft / 1.2 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 89 %
         - Recoil effect (Restricted arc if above 1.00): 0.04
   Seaboat quality  (Average = 1.00): 1.53

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.607
   Length to Beam Ratio: 6.33 : 1
   'Natural speed' for length: 17.65 kts
   Power going to wave formation at top speed: 52 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Forward deck:   40.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Aft deck:   40.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   10.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      12.20 ft / 3.72 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 155.8 %
      - Above water (accommodation/working, high = better): 90.5 %
   Waterplane Area: 11 218 Square feet or 1 042 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 89 lbs/sq ft or 436 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.74
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Machine gun Reffye with 16 tubes developed for "La Marine"

[KWorld]

I suppose my question is whether the guns mounted are going to be capable of penetrating armor, or whether they're going to be limited to shooting up unarmored vessels.

Also, with sail & steam vessels, please put how fast the ship is capable of cruising under sail in the notes.  Looks like this vessel is primarily a steamer, with only 5% of her displacement as masts & sails, but it's not clearly stated.  Of course, if France intends to be focus on Africa and builds a few bases along the coast so her fleet can refuel, sails aren't really needed.  For French Indochina, however, you'll want sails.

[Jefgte]

Looking at study drawings made in 2011 for 1861 to 1872 ships.
There are no problemo for the installations of citadel guns because, they have 90, 120 or 150°angle of fire.
But, they have not exactly the same decks layout...

Jef

[Jefgte]

Actual 1870 Plan

2 x BB-1 : 9900t - 115x22x6.71 - 4x274+8x240 - 14kts - B100 - (Batteries ships Rochambeau & Lafayette) - (drawing nearly finish)
4 x BB-A : 9800t - 102x21x8.15 - 4x340+2x274+8x140 - 14kts - B300
2 x BB-B : 6600t - 97x18 - 6x240+8x140 - 14kts - B200 (drawing nearly finish)
4 x BB-C : 4400t - 91x18 - 2T2x240+6x140 - 14kts - B150

6 x Frigate-A : 5400t - 107x18 - 4x194+4x164 - 17kts - B100
12 x Corvette-A : 2420t - 75x14 - 6x140+4x47 - 16kts
12 x Aviso : 1900t - 74x12 - 4x100+4x47 - 16kts

Total:44 ships & 185.240t