RML 11 inch 25 ton gun
Encyclopedia
RML 11 inch 25 ton guns were large rifled muzzle-loading guns used as primary armament on British battleships and for coastal defence. They were effectively the same gun as the RML 12 inch 25 ton gun
, bored to 11 inches instead of 12.
.
" armour-piercing shot, which were fired with a "Battering charge" of 85 pounds of "P" (gunpowder) or 70 pounds of "R.L.G." (gunpowder) for maximum velocity and hence penetrating power. Shrapnel and Common (exploding) shells weighed 532 - 536 pounds and were fired with a "Full charge" of 60 pounds "P" or 50 pounds "R.L.G.".
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RML 12 inch 25 ton gun
The RML 12 inch 25 ton guns were large rifled muzzle-loading guns used as primary armament on British ironclad turret battleships and coastal monitors, and also ashore for coast defence...
, bored to 11 inches instead of 12.
Design
Mark I was introduced in 1867. Mark II was introduced in 1871 using the simpler and cheaper "Fraser" gun construction method which had proved successful with the RML 9 inch 12 ton Mk IV gunRML 9 inch 12 ton gun
The RML 9 inch guns Mark I - Mark VI were large rifled muzzle-loading guns used as primary armament on smaller British ironclad battleships and secondary armament on larger battleships, and also ashore for coast defence.-Design:...
.
Naval service
Guns were mounted on :- HMS AlexandraHMS Alexandra (1875)HMS Alexandra was a central battery ironclad of the Victorian Royal Navy, whose seagoing career was from 1877 to 1900. She spent much of her career as a flagship, and took part in operations to deter Russian aggression against Turkey in 1878 and the bombardment of Alexandria in 1882.-Background:At...
commissioned 1877 - HMS TemeraireHMS Temeraire (1876)HMS Temeraire was an ironclad battleship of the Victorian Royal Navy which was unique in that she carried her main armament partly in the traditional broadside battery, and partly in barbettes on the upper deck.-Design and construction:...
commissioned 1877
Ammunition
The gun's primary projectile was 536 - 543 pound "PalliserPalliser shot
Palliser shot was invented by Sir William Palliser and hence its name. It was an early British armour-piercing artillery projectile, intended to pierce the armour protection of warships being developed in the second half of the 19th century.-History:...
" armour-piercing shot, which were fired with a "Battering charge" of 85 pounds of "P" (gunpowder) or 70 pounds of "R.L.G." (gunpowder) for maximum velocity and hence penetrating power. Shrapnel and Common (exploding) shells weighed 532 - 536 pounds and were fired with a "Full charge" of 60 pounds "P" or 50 pounds "R.L.G.".
Surviving examples
- A Mark II gun at Fort Nelson, PortsmouthFort Nelson, PortsmouthFort Nelson, in the civil parish of Boarhunt in the English county of Hampshire, is one of five defensive forts built on the summit of Portsdown Hill in the 1860s, overlooking the important naval base of Portsmouth. It is now part of the Royal Armouries, housing their collection of...
, UK