RML 9-inch Armstrong Gun

RML 9-inch Armstrong Gun
Big model of gun turret on HNLMS Prins Hendrik,
showing RML 9-inch Armstrong Gun.
TypeNaval gun
Coast defence gun
Place of originUnited Kingdom
Service history
In service1867
Used by
Production history
ManufacturerElswick Ordnance Company
Specifications
Mass12,300 kg
Length3.962 m

Calibre9-inch (229 mm)
Muzzle velocity1,476 feet per second (450 m/s)

The RML 9-inch Armstrong Gun was a rifled muzzle loading gun, used in substantial numbers by the Dutch navy, the Spanish Navy, and other navies. It should not be confused with the RML 9-inch 12-ton gun, used in the British Royal Navy.