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Japan's Imperial Navy flag

Japan's 4" guns

Design

 

Usage

 

Specifications

  4.7" L/32
Manufacturer Armstrong1
Caliber 321
Weight 1.66 tons1
Elevation  
Muzzle Velocity 1,938'/sec1
Range of Shell  
Shell Weight - AP 36 lb1
Rate of Fire 8.61
  4.7" L/40
Manufacturer Armstrong1
Caliber 401
Weight 2 tons1
Elevation  
Muzzle Velocity 2,150'/sec1
Range of Shell  
Shell Weight - AP 45 lb1
Rate of Fire 81
Penetration - 3,000 yards 2.5"1
  4.7" / 120 mm L/45
Manufacturer  
Caliber 451,2
Weight  
Elevation 80°2
Muzzle Velocity  
Range of Shell 15,600 m2
Height of Shell 8,450 m2
Shell Weight 45 lb2
20.5 kg2
Rate of Fire 10 - 12 rpm2
  4.7" / 120 mm L/45 Type 10
Manufacturer  
Caliber 454
Length 5.604 m4
Weight 2,980 kg4
Elevation 75°4
Muzzle Velocity 2,706'/sec3
825 m/sec4
Range of Shell 17,060 yards3
15,600 m4
Height of Shell 11,007 yards3
10,065 m4
Shell Weight 45.08 lb3
20.45 kg4
Rate of Fire 10 - 11 rpm3,4
Life of Barrel 700 - 1,000 rounds4

Sources:

  1. Janes' Fighting Ships of World War II, 1989
  2. The Imperial Japanese Navy, A. J. Watts and B. G. Gordon, 1971
  3. The Imperial Japanese Navy in the Pacific War, Mark E. Stille, 2013
  4. Japanese Cruisers of the Pacific War, Eric Lacroix, Linton Wells II, 1997
20th Century American Military History Crucial Site