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Fantasy Fleet Page
French 381mm/50 Model 1931
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This gun was developed for the Richelieu class battleships.  It is much more powerful than the 381mm/40 Model 1922 mounted by the France class, to reflect the differences in the intended tactical employment of the different ships.


          French 381mm/50, on the Richelieu class

     Caliber = 38.1 cm (15.0 inch)
     Shell weight = 925 kg (2039 lbs)
     Muzzle velocity = 796 m/s (2612 fps)
     Relative ballistic performance: 1.00
     Muzzle energy = 293.2 megajoules = 108052.8 foot-tons
     Relative muzzle energy: 1.00
     Barrel length: 50 calibers

     Elevation          Range         Time      Velocity   Fall Angle
       2.5 deg        5200 meters     7.0 sec    701 m/s     2.8 deg
       5.0 deg        9600 meters    13.6 sec    633 m/s     5.8 deg
       7.5 deg       13400 meters    20.0 sec    581 m/s     9.3 deg
      10.0 deg       16700 meters    26.2 sec    543 m/s    12.9 deg
      12.5 deg       19700 meters    32.1 sec    515 m/s    16.6 deg
      15.0 deg       22400 meters    37.9 sec    495 m/s    20.4 deg
      20.0 deg       27000 meters    48.9 sec    473 m/s    27.7 deg
      25.0 deg       30900 meters    59.4 sec    467 m/s    34.4 deg
      30.0 deg       34000 meters    69.5 sec    471 m/s    40.5 deg
      35.0 deg       36400 meters    79.0 sec    480 m/s    45.7 deg
      40.0 deg       38000 meters    88.1 sec    493 m/s    50.4 deg
      45.0 deg       38800 meters    96.7 sec    507 m/s    54.7 deg
      50.0 deg       38600 meters   104.6 sec    520 m/s    58.6 deg

          Armor Penetration - Vertical Belt Armor
               (Relative armor quality, 1.00)
               Maximum penetration: 77.68 cm

     Elevation          Range            Belt       Deck
       1.5 deg        3100 meters        70 cm
       2.6 deg        5400 meters        65 cm
       2.8 deg        5800 meters         ...        2 cm
       4.0 deg        7900 meters        60 cm
       5.1 deg        9800 meters         ...        4 cm
       5.6 deg       10500 meters        55 cm
       7.5 deg       13400 meters         ...        6 cm
       7.6 deg       13500 meters        50 cm
      10.0 deg       16800 meters        45 cm
      10.1 deg       16800 meters         ...        8 cm
      13.2 deg       20500 meters         ...       10 cm
      13.3 deg       20600 meters        40 cm
      17.4 deg       24700 meters         ...       12 cm
      17.8 deg       25000 meters        35 cm
      20.0 deg       27000 meters         ...       14 cm
      22.6 deg       29100 meters         ...       16 cm
      24.1 deg       30200 meters        30 cm
      25.2 deg       31000 meters         ...       18 cm
      27.8 deg       32700 meters         ...       20 cm
      30.5 deg       34300 meters         ...       22 cm
      33.2 deg       35600 meters         ...       24 cm
      33.8 deg       35900 meters        25 cm
      35.9 deg       36800 meters         ...       26 cm
      38.7 deg       37700 meters         ...       28 cm
      41.6 deg       38400 meters         ...       30 cm
      44.5 deg       38800 meters         ...       32 cm
      46.2 deg       38900 meters        20 cm
      47.5 deg       38800 meters         ...       34 cm

     Maximum range = 38900 meters at 46.5 deg elevation


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