Japanese 37mm Ho-204 Cannon


37 x 144 with HE round
Projectile weight     
1.05 lb
475 g
Velocity 1480 feet per second
450 meters per second
Rate of fire     
400 rounds per minute
Gun weight
287 lbs
130 kg
Gun power

The Ho-204 cannon may also possibly have been known as the Type 4 37mm Machine Cannon. It seems to have been installed only on the Ki-46-III KAI "Dinah", an unsuccessful night fighter variant.

The gun was the largest short-recoil Browning-type action autocannon to ever see combat. It was fed from a disintegrating belt and had an impressive rate of fire for so large a caliber.


Mikesh (2004)

Williams and Gustin (2003)

Valid HTML 4.01 Transitional