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French 4.7" gun
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This is the gun used on the Arabe and Audaciaux class destroyers.

          French 4.7"/50

     Caliber = 12.0 cm (4.7 inch)
     Shell weight = 28 kg (62 lbs)
     Muzzle velocity = 809 m/s (2653 fps)
     Relative ballistic performance: 0.83
     Muzzle energy = 9.162 megajoules = 3376.0 foot-tons
     Relative muzzle energy: 1.00
     Barrel length: 50 calibers

     Elevation          Range         Time      Velocity   Fall Angle
       2.5 deg        4300 meters     6.7 sec    532 m/s     3.3 deg
       5.0 deg        7000 meters    12.5 sec    414 m/s     7.8 deg
       7.5 deg        9000 meters    17.7 sec    350 m/s    12.9 deg
      10.0 deg       10500 meters    22.6 sec    311 m/s    18.5 deg
      12.5 deg       11800 meters    27.1 sec    288 m/s    24.1 deg
      15.0 deg       12800 meters    31.4 sec    274 m/s    29.5 deg
      20.0 deg       14500 meters    39.4 sec    262 m/s    39.4 deg
      25.0 deg       15800 meters    46.9 sec    261 m/s    47.6 deg
      30.0 deg       16700 meters    53.9 sec    267 m/s    54.1 deg
      35.0 deg       17400 meters    60.6 sec    275 m/s    59.5 deg
      40.0 deg       17700 meters    66.9 sec    284 m/s    63.7 deg
      45.0 deg       17700 meters    72.9 sec    293 m/s    67.3 deg
      50.0 deg       17300 meters    78.5 sec    302 m/s    70.3 deg

          Armor Penetration - Vertical Belt Armor
               (Relative armor quality, 0.90)
               Maximum penetration: 28.16 cm

     Elevation          Range            Belt       Deck
       1.3 deg        2600 meters        20 cm
       2.9 deg        4900 meters        15 cm
       6.3 deg        8100 meters        10 cm
      10.7 deg       10900 meters         ...        2 cm
      17.1 deg       13600 meters         5 cm
      23.9 deg       15500 meters         ...        4 cm
      39.7 deg       17700 meters         ...        6 cm

     Maximum range = 17700 meters at 42.5 deg elevation


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