mk1 


     Caliber = 4.0 cm (1.6 inch) 
     Shell weight = 1 kg (2 lbs) 
     Muzzle velocity = 930 m/s (3051 fps) 

     Relative ballistic performance: 1.10 

     Muzzle energy = 0.433 megajoules = 159.4 foot-tons 

     Relative muzzle energy: 1.28 

     Barrel length: 60 calibers 


     Elevation          Range         Time      Velocity   Fall Angle 

       2.5 deg        3900 meters     6.8 sec    382 m/s     4.5 deg 
       5.0 deg        5500 meters    11.9 sec    270 m/s    11.0 deg 
       7.5 deg        6600 meters    16.3 sec    221 m/s    18.4 deg 
      10.0 deg        7300 meters    20.2 sec    197 m/s    25.8 deg 
      12.5 deg        7900 meters    23.8 sec    184 m/s    32.9 deg 
      15.0 deg        8400 meters    27.2 sec    177 m/s    39.5 deg 
      20.0 deg        9100 meters    33.4 sec    175 m/s    50.2 deg 
      25.0 deg        9600 meters    39.2 sec    179 m/s    58.4 deg 
      30.0 deg        9900 meters    44.6 sec    184 m/s    64.5 deg 
      35.0 deg       10000 meters    49.7 sec    190 m/s    69.0 deg 
      40.0 deg       10000 meters    54.5 sec    196 m/s    72.6 deg 
      45.0 deg        9800 meters    59.1 sec    201 m/s    75.4 deg 
      50.0 deg        9500 meters    63.4 sec    205 m/s    77.8 deg 


          Armor Penetration - Vertical Belt Armor 

               (Relative armor quality, 1.00) 

               Maximum penetration: 9.59 cm 


     Elevation          Range            Belt       Deck 



     Maximum range = 10000 meters at 36.9 deg elevation