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Japanese 3"/40 Antiaircraft Gun


Photograph of early version of 3"/40 gun on battleship Mikasa

Wikimedia Commons


Specifications:


Bore diameter
3.0"
76.2mm
Ammunition type
Fixed nose-fused HE or common rounds.
Shrapnel, tracer, and antisubmarine rounds were also available.
Projectile weight
13 lbs
5.7 kg

Velocity

2240 feet per second
680 meters per second

Maximum elevation     

75 degrees

Range

11,800 yards
10,800 meters

Altitude

23,600 feet
7200 meters

Firing cycle

3 to 5 seconds


This gun was used by light warships and submarines. Loosely based on a Vickers design from 1908, it was normally mounted singly and was worked by hand.

References

Campbell (1985)



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