View source for RML 11 inch 25 ton gun

{{Infobox Weapon
|name= Ordnance RML 11 inch 25 ton gun
|image=[[File:HMS Temeraire (1876) 11-inch gun.jpg|300px]]
|caption=[[Disappearing gun]] on [[HMS Temeraire (1876)|HMS ''Temeraire]] in firing position
|type= [[Naval gun]]<br>Coast defence gun
<!-- Type selection -->
|is_ranged=YES
|is_bladed=
|is_explosive=
|is_artillery=YES
|is_vehicle=
|is_UK=YES
<!-- Service history -->
|service=1867-190?
|used_by=[[Royal Navy]]
|wars=[[Bombardment of Alexandria (1882)]]
<!-- Production history -->
|designer=
|design_date=
|manufacturer=[[Royal Arsenal]]
|production_date=
|number=
|variants=Mk I, Mk II
<!-- General specifications -->
|weight={{convert|25|long ton|kg}}
|length= 
|part_length={{convert|145|in|m}} (bore + chamber)<ref name=TOC1877page292>Treatise on Construction of Service Ordnance 1877, page 292</ref>
|width=
|height=
|crew=
<!-- Ranged weapon specifications --> 
|cartridge={{convert|532|to|543|lb|kg|sigfig=4}} [[Palliser shot|Palliser]], [[British ordnance terms#Common Shell|Common]], [[Shrapnel shell|Shrapnel]]
|caliber={{convert|11|in|mm|sing=on|sigfig=4}}
|action= 
|rate=
|velocity={{convert|1360|ft/s|m/s}}<ref>MV of 1,360 feet/second firing 543-pound 2-oz projectile with "Battering charge" of 85 pounds "P" (gunpowder) is quoted in "Text Book of Gunnery 1887" Table XVI.</ref>
|range= 
|max_range=
|feed= 
|sights= 
<!-- Artillery specifications -->
|breech=
|recoil=
|carriage=
|elevation=
|traverse=
}}
'''[[British ordnance terms#RML|RML]] 11 inch 25 ton guns''' were large [[Muzzle-loading rifle|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.

==Design==
[[File:RML 11 inch 25 ton gun diagrams.jpeg|thumb|left|<center>Mark I & II gun construction</center>]]
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 gun|RML 9 inch 12 ton Mk IV gun]].
<ref>Treatise on Construction of Service Ordnance, 1879, page 281-282</ref>

==Naval service==
Guns were mounted on :
*[[HMS Alexandra_(1875)|HMS Alexandra]] commissioned 1877
*[[HMS Temeraire (1876)|HMS Temeraire]] commissioned 1877

==Ammunition==
The gun's primary projectile was 536 - 543 pound "[[Palliser shot|Palliser]]" armour-piercing shot, which were fired with a "Battering charge" of 85 pounds of [[British ordnance terms#Gunpowder|"P" (gunpowder)]] or 70 pounds of [[British ordnance terms#Gunpowder|"R.L.G." (gunpowder)]] for maximum velocity and hence penetrating power. [[Shrapnel shell|Shrapnel]] and [[British ordnance terms#Common Shell|Common]] (exploding) shells weighed 532 - 536 pounds and were fired with a "Full charge" of 60 pounds "P" or 50 pounds [[British ordnance terms#Gunpowder|"R.L.G."]]<ref>Treatise on Ammunition 1877, pages 191,194, 205, 220</ref>.

==See also==
*[[List of naval guns]]

==Surviving examples==
[[File:11inch muzzle loading rifled gun(1871)mk2.jpg|thumb|left|Mk II gun at [[Fort Nelson, Portsmouth]], UK]]
* A Mark II gun at [[Fort Nelson, Portsmouth]], UK

==Notes==
{{reflist}}

==References==
*[http://download404.mediafire.com/lwwy9ytbtzeg/5zhwmwn41lg/Treatise+on+ammunition+1877.pdf Treatise on Ammunition. War Office, UK, 1877]
*[http://www.archive.org/details/treatiseonconst00offigoog Treatise on the Construction and Manufacture of Ordnance in the British service. War Office, UK, 1877]
*[http://www.archive.org/details/treatiseonconst00owengoog Treatise on the Construction and Manufacture of Ordnance in the British Service. War Office, UK, 1879]
*[http://cgsc.cdmhost.com/u?/p4013coll11,222 Text Book of Gunnery, 1887. LONDON : PRINTED FOR HIS MAJESTY'S STATIONERY OFFICE, BY HARRISON AND SONS, ST. MARTIN'S LANE]

==External links==
{{commonscat|RML 11 inch 25 ton gun}}

{{artillery-stub}}

{{VictorianEraBritishNavalWeapons}}

[[Category:Naval guns of the United Kingdom]]
[[Category:280 mm artillery]]

[[Category:2Fix]]