Make your own free website on Tripod.com
Fantasy Fleet Page
Russian 420mm/53
Home
French Strategic Resources
French Coast Defenses
Russian Coast Defenses
The Fleet of the Republic of France
Port Facilities of the Republic of France
French Atlantic Fleet
French Indian Ocean Flotilla
French Mediterranian Fleet
French Pacific Fleet
French ships under construction
Obsolete French ships
French Ship Designs
French Naval Guns
Russian Federation Port Facilities
Russian Federation Fleet, as of 1/1/1921
Russian Federation Baltic Sea Fleet
Russian Federation Black Sea Fleet
Russian Federation Northern Fleet
Russian Federation Pacific Fleet
Russian Federation Caspian Sea Flotilla
Russian River Flotillas
Russian Federation ships under construction
Obsolete Russian ships
Russian Ship Designs
Russian Naval Guns
Treaty tables

This gun was developed for Russian coast artillery installations.  It cannot be mounted on a warship, due to limitations of Clieto treaty.


          Russian 420mm/53 with 1150 kg heavy shell


     Caliber = 42.0 cm (16.5 inch)
     Shell weight = 1150 kg (2535 lbs)
     Muzzle velocity = 859 m/s (2818 fps)

     Relative ballistic performance: 0.93

     Muzzle energy = 424.5 megajoules = 156437.8 foot-tons

     Relative muzzle energy: 1.08

     Barrel length: 53 calibers


     Elevation          Range         Time      Velocity   Fall Angle

       2.5 deg        5900 meters     7.5 sec    738 m/s     2.8 deg
       5.0 deg       10800 meters    14.6 sec    654 m/s     6.0 deg
       7.5 deg       15000 meters    21.3 sec    595 m/s     9.6 deg
      10.0 deg       18600 meters    27.8 sec    552 m/s    13.4 deg
      12.5 deg       21700 meters    34.1 sec    521 m/s    17.3 deg
      15.0 deg       24600 meters    40.1 sec    500 m/s    21.2 deg
      20.0 deg       29500 meters    51.7 sec    478 m/s    28.8 deg
      25.0 deg       33700 meters    62.7 sec    473 m/s    35.6 deg
      30.0 deg       37100 meters    73.2 sec    479 m/s    41.6 deg
      35.0 deg       39800 meters    83.3 sec    491 m/s    46.8 deg
      40.0 deg       41700 meters    92.9 sec    506 m/s    51.3 deg
      45.0 deg       42700 meters   102.0 sec    522 m/s    55.4 deg
      50.0 deg       42600 meters   110.4 sec    537 m/s    59.2 deg


          Armor Penetration - Vertical Belt Armor

               (Relative armor quality, 0.90)

               Maximum penetration: 103.79 cm


     Elevation          Range            Belt       Deck

       1.0 deg        2600 meters        95 cm
       1.7 deg        4200 meters        90 cm
       2.2 deg        5400 meters         ...        2 cm
       2.5 deg        5800 meters        85 cm
       3.3 deg        7500 meters        80 cm
       4.0 deg        9000 meters         ...        4 cm
       4.3 deg        9500 meters        75 cm
       5.4 deg       11500 meters        70 cm
       5.8 deg       12300 meters         ...        6 cm
       6.7 deg       13700 meters        65 cm
       7.7 deg       15300 meters         ...        8 cm
       8.3 deg       16100 meters        60 cm
       9.8 deg       18300 meters         ...       10 cm
      10.2 deg       18800 meters        55 cm
      12.2 deg       21400 meters         ...       12 cm
      12.6 deg       21800 meters        50 cm
      15.2 deg       24900 meters         ...       14 cm
      15.7 deg       25300 meters        45 cm
      18.1 deg       27700 meters         ...       16 cm
      19.9 deg       29400 meters        40 cm
      20.1 deg       29600 meters         ...       18 cm
      22.2 deg       31400 meters         ...       20 cm
      24.2 deg       33100 meters         ...       22 cm
      25.8 deg       34300 meters        35 cm
      26.3 deg       34600 meters         ...       24 cm
      28.4 deg       36100 meters         ...       26 cm
      30.5 deg       37400 meters         ...       28 cm
      32.6 deg       38600 meters         ...       30 cm
      34.5 deg       39600 meters        30 cm
      34.7 deg       39700 meters         ...       32 cm
      37.0 deg       40700 meters         ...       34 cm
      39.2 deg       41500 meters         ...       36 cm
      41.4 deg       42100 meters         ...       38 cm
      43.7 deg       42500 meters         ...       40 cm
      45.3 deg       42700 meters        25 cm
      46.1 deg       42800 meters         ...       42 cm
      48.6 deg       42700 meters         ...       44 cm


     Maximum range = 42800 meters at 47.1 deg elevation


Enter supporting content here