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Japanese 5.5"/40 QF Gun


Photograph of 5.5"/40 gun on I-400

U.S. Navy? Via navweaps.org


Specifications:


Bore diameter
5.512"
140mm
Ammunition type
Semifixed rounds

Weight of round

83.3 lbs
38.0 kg

Velocity

2297-2313 feet per second
700-705 meters per second

Maximum elevation     

30 degrees

Range

17,500 yards
16,000 meters

Firing cycle

12 seconds


This weapon was mounted on submarines and was designed specifically for use against destroyers, with an unusually large burster charge. The mount was hand operated but used a pneumatic hoist. A twin mounting was used on I-7 and I-8 that had a maximum elevation of 40 degrees.

References

Campbell (1985)


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