mk1 


     Caliber = 7.5 cm (3.0 inch) 
     Shell weight = 5 kg (12 lbs) 
     Muzzle velocity = 902 m/s (2958 fps) 

     Relative ballistic performance: 0.60 

     Muzzle energy = 2.237 megajoules = 824.2 foot-tons 

     Relative muzzle energy: 1.00 

     Barrel length: 50 calibers 


     Elevation          Range         Time      Velocity   Fall Angle 

       2.5 deg        3500 meters     6.5 sec    352 m/s     4.7 deg 
       5.0 deg        4900 meters    11.3 sec    248 m/s    11.4 deg 
       7.5 deg        5800 meters    15.5 sec    202 m/s    19.2 deg 
      10.0 deg        6400 meters    19.1 sec    180 m/s    26.6 deg 
      12.5 deg        6900 meters    22.5 sec    169 m/s    34.0 deg 
      15.0 deg        7300 meters    25.6 sec    163 m/s    40.5 deg 
      20.0 deg        7900 meters    31.4 sec    161 m/s    51.3 deg 
      25.0 deg        8300 meters    36.7 sec    165 m/s    59.3 deg 
      30.0 deg        8600 meters    41.8 sec    170 m/s    65.5 deg 
      35.0 deg        8600 meters    46.5 sec    176 m/s    69.9 deg 
      40.0 deg        8600 meters    51.0 sec    181 m/s    73.5 deg 
      45.0 deg        8400 meters    55.2 sec    185 m/s    76.2 deg 
      50.0 deg        8100 meters    59.1 sec    189 m/s    78.5 deg 


          Armor Penetration - Vertical Belt Armor 

               (Relative armor quality, 1.00) 

               Maximum penetration: 15.29 cm 


     Elevation          Range            Belt       Deck 

       2.0 deg        3100 meters         5 cm


     Maximum range = 8600 meters at 35.7 deg elevation