Type 3 12cm AA Gun

Introduced Year : 1943
Caliber : 120 mm
Barrel Length : 6.71 m (L56)
EL Angle of Fire : 8 to +90 Degrees
AZ Angle of Fire : 360 Degrees
Shell Weight : 23.4 Kg
Muzzle Velocity : 853 m/sec
Weight : 19.808 ton
Range : 20,500 m
Altitude : 14,000 m
Production Qty : 120

This AA was developed in order to protect the major cities in Japan proper from the air raid. It was deployed at cities by small numbers, but they were not effective against a large formation of B-29.