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Japan's Imperial Navy flag

Japan's 8 " guns

Design

The 7.9" / 20 cm L/50 Type 3 gun was designed by Hata Chiyokichi in 1916 at Kure Navy Yard.1

 

Usage

 

Specifications

  7.9" / 20 cm L/50 Type 3
Caliber 501
Length 10 m1
Weight 17.9 tons1
Grooves 481
Elevation 10,000 m1
Muzzle Velocity 870 m/sec1
Range of Shell - 25° 24,000 m1
Range of Shell - 40 ° 26,700 m1
Range of Shell - 45° 28,000 m1
Shell Weight 110 kg1
Rate of Fire 5 rpm1
Barrel Life 300 rounds1
  8" / 203.2 mm L/50 Type 3
Caliber 501
Length 10.31 m1
Weight 19 tons1
Grooves 481
Elevation  
Muzzle Velocity 835 m/sec1
Range of Shell - 40° 31,606 yards2
28,900 m1
Range of Shell - 45° 32,153 yards2
29,400 m1
Shell Weight 125.85 kg1
Rate of Fire 2 - 3 rpm1,2
Barrel Life 320 rounds1

Sources:

  1. Japanese Cruisers of the Pacific War, Eric Lacroix, Linton Wells II, 1997
  2. The Imperial Japanese Navy in the Pacific War, Mark E. Stille, 2013
20th Century American Military History Crucial Site