mk1 


     Caliber = 5.7 cm (2.2 inch) 
     Shell weight = 3 kg (7 lbs) 
     Muzzle velocity = 1012 m/s (3321 fps) 

     Relative ballistic performance: 1.10 

     Muzzle energy = 1.538 megajoules = 566.6 foot-tons 

     Relative muzzle energy: 1.57 

     Barrel length: 70 calibers 


     Elevation          Range         Time      Velocity   Fall Angle 

       2.5 deg        5100 meters     7.6 sec    465 m/s     4.2 deg 
       5.0 deg        7400 meters    13.6 sec    331 m/s    10.3 deg 
       7.5 deg        8900 meters    18.7 sec    273 m/s    17.1 deg 
      10.0 deg       10000 meters    23.3 sec    243 m/s    24.1 deg 
      12.5 deg       10900 meters    27.6 sec    226 m/s    31.0 deg 
      15.0 deg       11600 meters    31.6 sec    218 m/s    37.2 deg 
      20.0 deg       12800 meters    39.1 sec    214 m/s    47.9 deg 
      25.0 deg       13600 meters    46.0 sec    218 m/s    55.9 deg 
      30.0 deg       14200 meters    52.5 sec    225 m/s    61.9 deg 
      35.0 deg       14600 meters    58.8 sec    233 m/s    66.7 deg 
      40.0 deg       14700 meters    64.7 sec    240 m/s    70.3 deg 
      45.0 deg       14600 meters    70.3 sec    247 m/s    73.3 deg 
      50.0 deg       14200 meters    75.6 sec    253 m/s    75.7 deg 


          Armor Penetration - Vertical Belt Armor 

               (Relative armor quality, 1.00) 

               Maximum penetration: 15.67 cm 


     Elevation          Range            Belt       Deck 

       2.9 deg        5600 meters         5 cm
      36.0 deg       14600 meters         ...        2 cm 


     Maximum range = 14700 meters at 40.3 deg elevation