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British 4.7"/45 QF Mark 9 Gun


Photograph of 4.7"/45 gun turrets on British destroyer

uboat.net. Fair use may apply.


Specifications:


Bore
4.724"
120mm
Ammunition type
SAP or contact fused HE semi-fixed shells.
VT and star shells were also available.

Weight of round

50 lbs
22.68 kg

Velocity

2650 feet per second
808 meters per second

Maximum elevation     

40 degrees

Range

16,970 yards
15,520 meters

Firing cycle

5 seconds

This was the most common main armament for British destroyers. It suffered from the considerable disadvantage of no antiaircraft capability, unlike its American counterpart, the 5"/38, which was a superb antiaircraft weapon.


References

Campbell (1985)



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