15,2cm Mk1 


     Caliber = 15.2 cm (6.0 inch) 
     Shell weight = 45 kg (99 lbs) 
     Muzzle velocity = 848 m/s (2781 fps) 

     Relative ballistic performance: 0.58 

     Muzzle energy = 16.179 megajoules = 5962.1 foot-tons 

     Relative muzzle energy: 0.87 

     Barrel length: 45 calibers 


     Elevation          Range         Time      Velocity   Fall Angle 

       2.5 deg        4200 meters     6.8 sec    473 m/s     3.8 deg 
       5.0 deg        6400 meters    12.3 sec    352 m/s     8.9 deg 
       7.5 deg        8000 meters    17.2 sec    293 m/s    14.8 deg 
      10.0 deg        9200 meters    21.7 sec    259 m/s    21.2 deg 
      12.5 deg       10100 meters    25.9 sec    240 m/s    27.5 deg 
      15.0 deg       10900 meters    29.8 sec    229 m/s    33.5 deg 
      20.0 deg       12100 meters    37.0 sec    221 m/s    43.7 deg 
      25.0 deg       12900 meters    43.8 sec    223 m/s    52.1 deg 
      30.0 deg       13600 meters    50.1 sec    229 m/s    58.6 deg 
      35.0 deg       13900 meters    56.1 sec    236 m/s    63.6 deg 
      40.0 deg       14100 meters    61.8 sec    244 m/s    67.6 deg 
      45.0 deg       14000 meters    67.1 sec    251 m/s    70.9 deg 
      50.0 deg       13600 meters    72.2 sec    258 m/s    73.6 deg 


          Armor Penetration - Vertical Belt Armor 

               (Relative armor quality, 1.00) 

               Maximum penetration: 28.22 cm 


     Elevation          Range            Belt       Deck 

       1.8 deg        3400 meters        15 cm
       3.9 deg        5600 meters        10 cm
      10.8 deg        9500 meters         5 cm
      13.5 deg       10400 meters         ...        2 cm 
      30.1 deg       13600 meters         ...        4 cm 


     Maximum range = 14100 meters at 40.5 deg elevation