BL 9.2-inch Mk IX – X naval gun
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The BL 9.2-inch Mk IX and Mk X guns[note 1] were British breech loading 9.2-inch (234 mm) guns of 46.7 calibre, in service from 1899 to the 1950s as naval and coast defence guns. They had possibly the longest, most varied and successful service history of any British heavy ordnance.
Quick Facts Ordnance BL 9.2-inch gun Mk IX, Mk X, Type ...
Ordnance BL 9.2-inch gun Mk IX, Mk X | |
---|---|
Type | Naval gun Coast defence gun |
Place of origin | United Kingdom |
Service history | |
In service | 1899–1956 |
Used by | Royal Navy Royal Garrison Artillery, Royal Artillery from 1922 Royal Australian Artillery |
Production history | |
Manufacturer | Elswick Ordnance Company Vickers Beardmores[1] |
Variants | Mk IX, Mk X, Mk XIV |
Specifications | |
Mass | Mk IX: 27 tons barrel & breech Mk X: 28 tons[2] |
Barrel length | Mk IX: 35 ft 10 in (10.922 m) Mk X: 35 ft 9 in (10.897 m) bore (46.7 cal)[2] |
Shell | 380 lb (170 kg)[2] |
Calibre | 9.2-inch (233.7 mm) |
Breech | Welin interrupted screw |
Elevation | -20° to 15° (on Mark V Barbette mount) |
Traverse | 360° (on Mark V Barbette mount) |
Muzzle velocity | 2,643 ft/s (806 m/s)[3] |
Maximum firing range | 29,200 yd (26,700 m)[4] |
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