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100mm/56
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This weapon serves as secondary armament Admiral Ushakov class cruisers.  It will be retrofitted to Sviatoslav and General-Admiral Apraxin class cruisers as opportunity permits. 
 
 

           Russian 100mm/56


     Caliber = 10.0 cm (3.9 inch)
     Shell weight = 17 kg (37 lbs)
     Muzzle velocity = 852 m/s (2794 fps)

     Relative ballistic performance: 0.93

     Muzzle energy = 6.166 megajoules = 2272.3 foot-tons

     Relative muzzle energy: 1.16

     Barrel length: 56 calibers


     Elevation          Range         Time      Velocity   Fall Angle

       2.5 deg        4700 meters     7.0 sec    537 m/s     3.4 deg
       5.0 deg        7400 meters    13.0 sec    412 m/s     8.1 deg
       7.5 deg        9400 meters    18.3 sec    348 m/s    13.4 deg
      10.0 deg       11000 meters    23.3 sec    309 m/s    19.2 deg
      12.5 deg       12200 meters    27.9 sec    285 m/s    25.0 deg
      15.0 deg       13300 meters    32.2 sec    272 m/s    30.4 deg
      20.0 deg       15000 meters    40.4 sec    261 m/s    40.5 deg
      25.0 deg       16300 meters    48.0 sec    261 m/s    48.6 deg
      30.0 deg       17300 meters    55.1 sec    268 m/s    55.1 deg
      35.0 deg       17900 meters    62.0 sec    276 m/s    60.3 deg
      40.0 deg       18300 meters    68.4 sec    285 m/s    64.5 deg
      45.0 deg       18300 meters    74.5 sec    295 m/s    67.9 deg
      50.0 deg       17900 meters    80.3 sec    303 m/s    70.9 deg


          Armor Penetration - Vertical Belt Armor

               (Relative armor quality, 0.90)

               Maximum penetration: 25.95 cm


     Elevation          Range            Belt       Deck

       2.1 deg        4100 meters        15 cm
       4.8 deg        7200 meters        10 cm
      13.1 deg       12500 meters         ...        2 cm
      13.6 deg       12700 meters         5 cm
      27.8 deg       16900 meters         ...        4 cm
      49.2 deg       18000 meters         ...        6 cm


     Maximum range = 18300 meters at 42.7 deg elevation
     Maximum altitude = 13130 meters at 85 deg elevation


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