Japanese Naval Ordnance

4.7"/45 caliber

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

This heavy AA weapon was mounted aboard Akagi, as well as the Furutaka and Kako classes, and other smaller escort vessels.

Bore4.7 inches
Weight2.9 tons
Length OA222.6 inches
Weight Projectile45.0 lbs.
Muzzle Velocity2723 ft/s
Max. Elevation+75/-10 degrees
Max. Range17,500 yards
32,800 ft. max. ceiling.
Rate of Fire10-11/min