| Ordnance RML 10-inch 18-ton gun | |
|---|---|
_10-inch_gun.jpg) Mk I gun on broadside ironclad HMS Sultan in the 1890s | |
| Type | Naval gun Coastal gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1868–1904? |
| Used by | Royal Navy Australian Colonies |
| Wars | Bombardment of Alexandria |
| Production history | |
| Designer | M Robert Fraser, Royal Gun Factory |
| Designed | 1868 |
| Manufacturer | Royal Arsenal |
| Unit cost | £1,006[1] |
| Variants | Mks I – II |
| Specifications | |
| Barrel length | 145.5 inches (3.70 m) (bore)[2] |
| Shell | 400 to 410 pounds (181.4 to 186.0 kg) Palliser, Common, Shrapnel |
| Calibre | 10-inch (254.0 mm) |
| Muzzle velocity | Palliser : 1,364 feet per second (416 m/s) Common & shrapnel : 1,028 feet per second (313 m/s)[3] |
| Maximum firing range | 6,000 yards (5,500 m) |
The RML 10-inch guns Mk I – Mk II were large rifled muzzle-loading guns designed for British battleships and monitors in the 1860s to 1880s. They were also fitted to the Bouncer[4] and Ant-class flat-iron gunboats. They were also used for fixed coastal defences around the United Kingdom and around the British Empire until the early years of the 20th century.
- ^ Unit cost of £1,005 10 shillings 2 pence is quoted in "The British Navy" Volume II, 1882, by Sir Thomas Brassey. Page 38
- ^ Treatise on Construction of Service Ordnance 1877, page 292
- ^ 1,364 feet/second firing 400-pound projectile with "Battering charge" of 70 pound "P" (gunpowder). Treatise on Construction of Service Ordnance 1877, page 348. 1,028 feet/second firing 410-pound common shell with gas-check with 44 pounds "P" (gunpowder). Victorian Navy Handbook 1887, page 211.
- ^ Paloczi-Horvath, George (1996). From Monitor to Missile Boat Coast Defence Ships and Coastal Defence since 1860. Conway Maritime Press. p. 27. ISBN 0-85177-650-7.