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U.S. 4”/50 Mark 9 Gun


Photograph of U.S. 4"/50 gun

Naval Historical Center #41976

Specifications:


Bore
4"
101.6mm
Ammunition Type
Contact fused HE fixed shell
Projectile weight 33 lbs
15 kg
Velocity 2900 feet per second
884 meters per second
Maximum elevation    25 degrees
Range 15,920 yards
14,560 meters
Firing cycle 7 seconds


This obsolescent weapon, which had no antiaircraft capability, was still employed on the Clemsons, a few submarines, and some auxiliaries and armed merchantment early in the war.  It came in several slightly different marks.

References

Campbell (1985)


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