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British 5.5"/50 BL Mark 1 Gun


Specifications:


Bore
5.5"
139.7mm
Ammunition Type
CPC and HE shells with bagged propellant
Weight of round 82 lb
37.19 kg
Velocity 2790 feet per second
850 meters per second
Maximum elevation       30 degrees
Range 17,770 yards
16,250 meters

Originally designed for the Greek Navy, this gun was found only on the Hermes and a couple of armed merchantmen, where it served little useful purpose, having no antiaircraft capability.


References

Campbell (1985)



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