Japanese Naval Ordnance

3.9"/65 caliber


(Scanned from Campbell, "Naval Weapons of World War II")


(Scanned from Campbell, "Naval Weapons of World War II")


(Image provided by Joseph Low, scanned from "Mechanism of Japanese Destroyers & Torpedo Boats")

This superb AA weapon was mounted aboard Taiho, light cruiser Oyodo, and the Akizuki class destroyers.

Bore3.9 inches
Weight3.0 tons
Length OA264.9 inches
Weight Projectile28.7 lbs.
Muzzle Velocity3314 ft/s
Max. Elevation+90/-10 degrees
Max. Range21,300 yards
42,650 ft. max. ceiling.
Rate of Fire20-22/min