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Japan's Imperial Navy flag

Japan's 25 mm Type 96 Antiaircraft gun

Design

The 25 mm Type 96 was the standard Japanese Navy light anti-aircraft gun used in World War II and was based on the French Hotchkiss 25 mm.

Initially it was a dual mount but then the triple mount entered service in 1941. Then a single mount was deployed. The dual and triple mounts had a backup sight, and the single mount had and open ring sight.

There was a 15 round clip that fed the 25 mm and it had to stop firing when a new one was loaded.

There was a Type 95 director but it could also be controlled manually.

Usage

The 25 mm Type 96 was mounted on many of the Japanese warships. However, the 25 mm Type 96 wasn't very effective as it was slow to follow a target and the 25 mm shell didn't have enough of a punch to bring down the sturdier Allied aircraft.

Specifications

  25 mm Type 96
Caliber  
Length of gun  
Length of bore  
Rifling  
Length of rifling  
Weight traveling  
Weight in action  
Elevation -10° - 85°
Traverse  
Muzzle Velocity 2,953'/sec
Ceiling  
Range of shell 3,815 yards
Shell weight 0.6 lb
Rate of Fire 130/minute
Breech mechanism  

Sources:

  1. The Imperial Japanese Navy in the Pacific War, Mark E. Stille, 2013
20th Century American Military History Crucial Site