Martinique Class Carrier

[TacCovert4]

Martinique, Aztec Aircraft Carrier laid down 1926

Displacement:
   13,449 t light; 13,875 t standard; 15,399 t normal; 16,618 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (593.24 ft / 587.27 ft) x 68.90 ft x (23.79 / 25.28 ft)
   (180.82 m / 179.00 m) x 21.00 m  x (7.25 / 7.71 m)

Armament:
      8 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 250 per gun
     Quick firing guns in deck mounts, 1926 Model
     8 x Twin mounts on sides, evenly spread
      10 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 400 per gun
     Anti-air guns in deck mounts, 1926 Model
     10 x Single mounts on sides, evenly spread
      20 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1926 Model
     20 x Single mounts on sides, evenly spread
      16 raised mounts
      Weight of broadside 696 lbs / 316 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   405.22 ft / 123.51 m   9.97 ft / 3.04 m
   Ends:   1.97" / 50 mm   182.02 ft / 55.48 m   9.97 ft / 3.04 m
     Main Belt covers 106 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      0.94" / 24 mm   405.22 ft / 123.51 m   21.98 ft / 6.70 m
   Beam between torpedo bulkheads 52.49 ft / 16.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.36" / 60 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 78,013 shp / 58,197 Kw = 29.00 kts
   Range 10,300nm at 14.00 kts
   Bunker at max displacement = 2,743 tons

Complement:
   690 - 898

Cost:
   £2.964 million / $11.857 million

Distribution of weights at normal displacement:
   Armament: 122 tons, 0.8 %
      - Guns: 122 tons, 0.8 %
   Armour: 2,251 tons, 14.6 %
      - Belts: 660 tons, 4.3 %
      - Torpedo bulkhead: 311 tons, 2.0 %
      - Armament: 62 tons, 0.4 %
      - Armour Deck: 1,192 tons, 7.7 %
      - Conning Tower: 26 tons, 0.2 %
   Machinery: 2,497 tons, 16.2 %
   Hull, fittings & equipment: 5,107 tons, 33.2 %
   Fuel, ammunition & stores: 1,950 tons, 12.7 %
   Miscellaneous weights: 3,472 tons, 22.5 %
      - Hull below water: 1,700 tons
      - Hull above water: 1,700 tons
      - Above deck: 72 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     30,337 lbs / 13,761 Kg = 452.6 x 5.1 " / 130 mm shells or 3.6 torpedoes
   Stability (Unstable if below 1.00): 1.34
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has low forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.560 / 0.569
   Length to Beam Ratio: 8.52 : 1
   'Natural speed' for length: 24.23 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   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:   25.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Forward deck:   30.00 %,  32.81 ft / 10.00 m,  32.81 ft / 10.00 m
      - Aft deck:   39.00 %,  32.81 ft / 10.00 m,  32.81 ft / 10.00 m
      - Quarter deck:   6.00 %,  32.81 ft / 10.00 m,  32.81 ft / 10.00 m
      - Average freeboard:      28.71 ft / 8.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105.2 %
      - Above water (accommodation/working, high = better): 258.2 %
   Waterplane Area: 28,504 Square feet or 2,648 Square metres
   Displacement factor (Displacement / loading): 139 %
   Structure weight / hull surface area: 99 lbs/sq ft or 484 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.88
      - Overall: 1.00
   Adequate 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

3400t - 40 Aircraft
25t - LR Radio
10t - Additional SR Radio (for air group control)
12t - 1918 FC
25t - NF Devices

Fo'cstle deck is take-off deck leading into Hangar.
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