Cuirassées - Battleships

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Tolbiac, France BB1 laid down 1895



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Tolbiac-Malplaquet  -  Bouvines-Denain

Tolbiac, France BB1 laid down 1895

Displacement:
   11 300 t light; 11 887 t standard; 13 278 t normal; 14 390 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.14 ft / 387.14 ft) x 59.05 ft (Bulges 72.17 ft) x (27.18 / 29.48 ft)
   (119.83 m / 118.00 m) x 18.00 m (Bulges 22.00 m)  x (8.28 / 8.99 m)

Armament:
      4 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.60kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     2 x Twin mounts on centreline ends, evenly spread
      12 - 5.50" / 140 mm 45.0 cal guns - 83.91lbs / 38.06kg shells, 170 per gun
     Breech loading guns in casemate mounts, 1895 Model
     12 x Single mounts on sides, evenly spread
      8 - 3.95" / 100 mm 45.0 cal guns - 31.09lbs / 14.10kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1895 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 2.56" / 65.0 mm 46.5 cal guns - 8.69lbs / 3.94kg shells, 400 per gun
     Quick firing guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      4 - 0.30" / 7.6 mm 76.0 cal guns - 0.02lbs / 0.01kg shells, 500 per gun
     Machine guns in deck mounts, 1895 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 4 603 lbs / 2 088 kg
      Main Torpedoes
      2 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.372 t each, 0.744 t total
   submerged bow & stern tubes
      2nd Torpedoes
      4 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.372 t each, 1.488 t total
   submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   229.67 ft / 70.00 m   9.20 ft / 2.80 m
   Ends:   5.90" / 150 mm   157.35 ft / 47.96 m   7.86 ft / 2.40 m
   Upper:   5.90" / 150 mm   216.55 ft / 66.00 m   14.78 ft / 4.50 m
     Main Belt covers 91 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   5.90" / 150 mm      15.8" / 400 mm
   2nd:   2.95" / 75 mm   1.77" / 45 mm      2.95" / 75 mm
   3rd:   1.77" / 45 mm         -         1.77" / 45 mm
   4th:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2.75" / 70 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 13.00" / 330 mm, Aft 11.80" / 300 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13 800 ihp / 10 295 Kw = 18.11 kts
   Range 8 000nm at 10.00 kts
   Bunker at max displacement = 2 503 tons (100% coal)

Complement:
   617 - 803

Cost:
   £1.059 million / $4.238 million

Distribution of weights at normal displacement:
   Armament: 726 tons, 5.5 %
      - Guns: 721 tons, 5.4 %
      - Weapons: 4 tons, 0.0 %
   Armour: 4 465 tons, 33.6 %
      - Belts: 2 344 tons, 17.7 %
      - Armament: 1 058 tons, 8.0 %
      - Armour Deck: 764 tons, 5.8 %
      - Conning Towers: 300 tons, 2.3 %
   Machinery: 2 339 tons, 17.6 %
   Hull, fittings & equipment: 3 620 tons, 27.3 %
   Fuel, ammunition & stores: 1 977 tons, 14.9 %
   Miscellaneous weights: 150 tons, 1.1 %
      - On freeboard deck: 150 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15 144 lbs / 6 869 Kg = 17.5 x 12.0 " / 305 mm shells or 7.5 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 3.4 ft / 1.0 m
   Roll period: 16.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 79 %
         - Recoil effect (Restricted arc if above 1.00): 0.56
   Seaboat quality  (Average = 1.00): 1.58

Hull form characteristics:
   Hull has low quarterdeck ,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.612 / 0.611
   Length to Beam Ratio: 5.36 : 1
   'Natural speed' for length: 19.68 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.70 ft / 5.70 m,  18.70 ft / 5.70 m
      - Forward deck:   25.00 %,  18.70 ft / 5.70 m,  18.70 ft / 5.70 m
      - Aft deck:   30.00 %,  18.70 ft / 5.70 m,  18.70 ft / 5.70 m
      - Quarter deck:   25.00 %,  10.82 ft / 3.30 m,  10.82 ft / 3.30 m
      - Average freeboard:      16.73 ft / 5.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.0 %
      - Above water (accommodation/working, high = better): 97.6 %
   Waterplane Area: 16 908 Square feet or 1 571 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 136 lbs/sq ft or 665 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.55
      - Overall: 1.00
   Excellent 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

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Marignan, France BB2 laid down 1896



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Marignan - Calais  -  Rocroi- La Marsailles

Displacement:
   7 600 t light; 8 041 t standard; 9 094 t normal; 9 936 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.00 ft / 382.00 ft) x 65.62 ft (Bulges 72.18 ft) x (18.58 / 20.15 ft)
   (119.79 m / 116.43 m) x 20.00 m (Bulges 22.00 m)  x (5.66 / 6.14 m)

Armament:
      4 - 10.77" / 274 mm 40.0 cal guns - 598.64lbs / 271.54kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     2 x Twin mounts on centreline ends, evenly spread
      10 - 5.50" / 140 mm 45.0 cal guns - 83.91lbs / 38.06kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      8 - 3.95" / 100 mm 45.0 cal guns - 31.13lbs / 14.12kg shells, 250 per gun
     Quick firing guns in deck mounts, 1896 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 2.56" / 65.0 mm 46.5 cal guns - 8.69lbs / 3.94kg shells, 400 per gun
     Quick firing guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      4 - 0.30" / 7.6 mm 76.0 cal guns - 0.02lbs / 0.01kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 3 518 lbs / 1 596 kg
      Main Torpedoes
      2 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.386 t each, 0.772 t total
   submerged bow & stern tubes
      2nd Torpedoes
      2 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.386 t each, 0.772 t total
   submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.6" / 270 mm   232.95 ft / 71.00 m   7.86 ft / 2.40 m
   Ends:   2.95" / 75 mm     98.42 ft / 30.00 m   7.22 ft / 2.20 m
     50.63 ft / 15.43 m Unarmoured ends
   Upper:   2.95" / 75 mm   232.95 ft / 71.00 m   7.55 ft / 2.30 m
     Main Belt covers 94 % of normal length
     Main Belt inclined -30.00 degrees (positive = in)

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.6" / 270 mm   2.95" / 75 mm      10.6" / 270 mm
   2nd:   1.77" / 45 mm   0.80" / 20 mm      1.77" / 45 mm
   3rd:   0.40" / 10 mm         -               -
   4th:   0.40" / 10 mm         -               -
   5th:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 0.99" / 25 mm  Quarter deck: 0.99" / 25 mm

   - Conning towers: Forward 9.45" / 240 mm, Aft 7.10" / 180 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 11 000 ihp / 8 206 Kw = 18.00 kts
   Range 7 500nm at 10.00 kts
   Bunker at max displacement = 1 896 tons (100% coal)

Complement:
   465 - 605

Cost:
   £0.775 million / $3.101 million

Distribution of weights at normal displacement:
   Armament: 570 tons, 6.3 %
      - Guns: 567 tons, 6.2 %
      - Weapons: 3 tons, 0.0 %
   Armour: 2 443 tons, 26.9 %
      - Belts: 1 191 tons, 13.1 %
      - Armament: 463 tons, 5.1 %
      - Armour Deck: 634 tons, 7.0 %
      - Conning Towers: 155 tons, 1.7 %
   Machinery: 1 833 tons, 20.2 %
   Hull, fittings & equipment: 2 691 tons, 29.6 %
   Fuel, ammunition & stores: 1 494 tons, 16.4 %
   Miscellaneous weights: 62 tons, 0.7 %
      - On freeboard deck: 62 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10 313 lbs / 4 678 Kg = 16.5 x 10.8 " / 274 mm shells or 6.0 torpedoes
   Stability (Unstable if below 1.00): 1.52
   Metacentric height 5.4 ft / 1.7 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 76 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has low forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.621 / 0.626
   Length to Beam Ratio: 5.29 : 1
   'Natural speed' for length: 19.54 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 1.00 ft / 0.30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  12.80 ft / 3.90 m,  10.82 ft / 3.30 m
      - Forward deck:   25.00 %,  13.12 ft / 4.00 m,  11.80 ft / 3.60 m
      - Aft deck:   45.00 %,  11.80 ft / 3.60 m,  11.80 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.80 ft / 3.60 m,  11.80 ft / 3.60 m
      - Average freeboard:      11.94 ft / 3.64 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.3 %
      - Above water (accommodation/working, high = better): 92.0 %
   Waterplane Area: 18 703 Square feet or 1 738 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 116 lbs/sq ft or 567 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.47
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

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Austerlitz, France BB3 laid down 1897

Austerlitz - Iéna  -  Arcole - Rivoli

Displacement:
   11 750 t light; 12 447 t standard; 13 752 t normal; 14 796 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (435.14 ft / 433.14 ft) x 59.05 ft (Bulges 72.17 ft) x (25.66 / 27.62 ft)
   (132.63 m / 132.02 m) x 18.00 m (Bulges 22.00 m)  x (7.82 / 8.42 m)

Armament:
      4 - 12.00" / 305 mm 45.0 cal guns - 871.38lbs / 395.25kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 7.65" / 194 mm 45.0 cal guns - 225.75lbs / 102.40kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      16 - 3.95" / 100 mm 45.0 cal guns - 31.09lbs / 14.10kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1897 Model
     16 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 2.56" / 65.0 mm 76.0 cal guns - 9.50lbs / 4.31kg shells, 400 per gun
     Quick firing guns in deck mounts, 1897 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 5 827 lbs / 2 643 kg
      Main Torpedoes
      2 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.400 t each, 0.800 t total
   submerged bow & stern tubes
      2nd Torpedoes
      4 - 15.8" / 400 mm, 15.66 ft / 4.77 m torpedoes - 0.400 t each, 1.601 t total
   submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.8" / 300 mm   252.62 ft / 77.00 m   8.86 ft / 2.70 m
   Ends:   5.90" / 150 mm   157.35 ft / 47.96 m   7.86 ft / 2.40 m
     23.17 ft / 7.06 m Unarmoured ends
   Upper:   5.90" / 150 mm   252.62 ft / 77.00 m   14.45 ft / 4.40 m
     Main Belt covers 90 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   5.90" / 150 mm      15.0" / 380 mm
   2nd:   5.90" / 150 mm   1.77" / 45 mm      5.90" / 150 mm
   3rd:   1.77" / 45 mm         -         1.77" / 45 mm
   4th:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2.75" / 70 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 13.00" / 330 mm, Aft 11.80" / 300 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13 300 ihp / 9 922 Kw = 18.06 kts
   Range 7 500nm at 10.00 kts
   Bunker at max displacement = 2 349 tons (100% coal)

Complement:
   634 - 825

Cost:
   £1.154 million / $4.616 million

Distribution of weights at normal displacement:
   Armament: 979 tons, 7.1 %
      - Guns: 974 tons, 7.1 %
      - Weapons: 5 tons, 0.0 %
   Armour: 4 593 tons, 33.4 %
      - Belts: 2 372 tons, 17.2 %
      - Armament: 1 087 tons, 7.9 %
      - Armour Deck: 827 tons, 6.0 %
      - Conning Towers: 307 tons, 2.2 %
   Machinery: 2 180 tons, 15.9 %
   Hull, fittings & equipment: 3 878 tons, 28.2 %
   Fuel, ammunition & stores: 2 002 tons, 14.6 %
   Miscellaneous weights: 120 tons, 0.9 %
      - On freeboard deck: 120 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15 939 lbs / 7 230 Kg = 18.4 x 12.0 " / 305 mm shells or 7.1 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 16.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 85 %
         - Recoil effect (Restricted arc if above 1.00): 0.70
   Seaboat quality  (Average = 1.00): 1.71

Hull form characteristics:
   Hull has low forecastle, low quarterdeck ,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.600
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 20.81 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   22.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Forward deck:   25.00 %,  18.70 ft / 5.70 m,  18.37 ft / 5.60 m
      - Aft deck:   25.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Quarter deck:   28.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      16.21 ft / 4.94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.3 %
      - Above water (accommodation/working, high = better): 103.7 %
   Waterplane Area: 18 706 Square feet or 1 738 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 138 lbs/sq ft or 673 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 2.02
      - Overall: 1.00
   Excellent 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

[Jefgte]

Magenta class, France BB4 laid down 1900

Magenta-Sébastopol - Solférino-Malakoff

Displacement:
   13 800 t light; 14 536 t standard; 15 839 t normal; 16 882 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (499.00 ft / 488.00 ft) x 78.75 ft x (23.08 / 24.35 ft)
   (152.10 m / 148.74 m) x 24.00 m  x (7.04 / 7.42 m)

Armament:
      6 - 12.00" / 305 mm 40.0 cal guns - 828.08lbs / 375.61kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1900 Model
     3 x Twin mounts on centreline ends, majority aft
      12 - 5.50" / 140 mm 45.0 cal guns - 83.91lbs / 38.06kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1900 Model
     12 x Single mounts on sides, evenly spread
      8 - 3.95" / 100 mm 45.0 cal guns - 31.13lbs / 14.12kg shells, 250 per gun
     Quick firing guns in deck mounts, 1900 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 2.56" / 65.0 mm 46.5 cal guns - 8.69lbs / 3.94kg shells, 400 per gun
     Quick firing guns in deck mounts, 1900 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      4 - 0.31" / 8 mm 76.0 cal guns - 0.02lbs / 0.01kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1900 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 6 259 lbs / 2 839 kg
      Main Torpedoes
      2 - 17.7" / 450 mm, 17.40 ft / 5.30 m torpedoes - 0.611 t each, 1.222 t total
   submerged bow & stern tubes
      2nd Torpedoes
      2 - 17.7" / 450 mm, 17.40 ft / 5.30 m torpedoes - 0.611 t each, 1.222 t total
   submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.6" / 270 mm   321.52 ft / 98.00 m   14.12 ft / 4.30 m
   Ends:   5.90" / 150 mm     98.42 ft / 30.00 m   7.87 ft / 2.40 m
     68.06 ft / 20.74 m Unarmoured ends
   Upper:   5.90" / 150 mm   321.52 ft / 98.00 m   7.87 ft / 2.40 m
     Main Belt covers 101 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.6" / 270 mm   3.95" / 100 mm      10.6" / 270 mm
   2nd:   1.77" / 45 mm   0.80" / 20 mm      1.97" / 50 mm
   3rd:   0.40" / 10 mm         -               -
   4th:   0.40" / 10 mm         -               -
   5th:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2.57" / 65 mm
   Forecastle: 1.77" / 45 mm  Quarter deck: 1.77" / 45 mm

   - Conning towers: Forward 10.62" / 270 mm, Aft 7.10" / 180 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 14 500 ihp / 10 817 Kw = 18.13 kts
   Range 7 000nm at 10.00 kts
   Bunker at max displacement = 2 347 tons (100% coal)

Complement:
   705 - 917

Cost:
   £1.274 million / $5.097 million

Distribution of weights at normal displacement:
   Armament: 993 tons, 6.3 %
      - Guns: 988 tons, 6.2 %
      - Weapons: 5 tons, 0.0 %
   Armour: 5 447 tons, 34.4 %
      - Belts: 2 936 tons, 18.5 %
      - Armament: 1 010 tons, 6.4 %
      - Armour Deck: 1 260 tons, 8.0 %
      - Conning Towers: 241 tons, 1.5 %
   Machinery: 2 266 tons, 14.3 %
   Hull, fittings & equipment: 4 928 tons, 31.1 %
   Fuel, ammunition & stores: 2 039 tons, 12.9 %
   Miscellaneous weights: 166 tons, 1.0 %
      - Hull below water: 6 tons
      - On freeboard deck: 160 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 684 lbs / 10 743 Kg = 27.4 x 12.0 " / 305 mm shells or 6.0 torpedoes
   Stability (Unstable if below 1.00): 1.33
   Metacentric height 5.8 ft / 1.8 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 82 %
         - Recoil effect (Restricted arc if above 1.00): 0.53
   Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
   Hull has low quarterdeck ,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.625 / 0.631
   Length to Beam Ratio: 6.20 : 1
   'Natural speed' for length: 22.09 kts
   Power going to wave formation at top speed: 41 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 1.00 ft / 0.30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.67 ft / 6.00 m,  18.37 ft / 5.60 m
      - Forward deck:   30.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   25.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Quarter deck:   25.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      16.51 ft / 5.03 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 75.3 %
      - Above water (accommodation/working, high = better): 142.8 %
   Waterplane Area: 28 769 Square feet or 2 673 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 136 lbs/sq ft or 665 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.63
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent 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]

Why not reuse these topics for the 1870 restart ?


Jef  ;D