RML 8 inch 9 ton gun
The British RML 8-inch 9-ton guns Mark I – Mark III were medium rifled muzzle-loading guns used to arm smaller ironclad warships and coast defence batteries in the later 19th century.
RML 8 inch 9 ton gun
R. Ellis, Malta · "Navy and Army Illustrated", May 28th 1897. page 7. Scanned by Steve Johnson. Downloaded from Steve Johnson's cyber-heritage website at · Public domain
- Name
- RML 8-inch 9-ton gun
- Field
- rifled muzzle loader · coastal artillery weapon · naval artillery
- Region
- United Kingdom of Great Britain and Ireland
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Documentary summary
The British RML 8-inch 9-ton guns Mark I – Mark III were medium rifled muzzle-loading guns used to arm smaller ironclad warships and coast defence batteries in the later 19th century.
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wikidata · Q7277053 · wikipedia · RML 8-inch 9-ton gun
In this article
Key facts
Key facts
• Name — RML 8-inch 9-ton gun • Origin — United Kingdom • Type — Naval gun Coast defence gun • Is Ranged — YES • Is Artillery — YES • Is Uk — YES • Service — 1866–190? • Used By — Royal Navy • Manufacturer — Royal Arsenal • Unit Cost — £568 • Variants — Mk I – Mk III • Weight — 9 long ton • Part Length — 118 in bore + chamber • Cartridge — 174 lb • Caliber — 8 in • Velocity — 1420 ft/s
Design
Design
In common with other Royal Ordnance RML designs of the 1860s, Mark I used the strong but expensive Armstrong system of a steel tube surrounded by a complex system of multiple wrought-iron coils, which was progressively simplified in Marks II and III to reduce costs: Mark III consisted only of A tube, B tube, breech coil and cascabel screw. Rifling was of the "Woolwich" pattern of a small number of broad shallow grooves: 4 grooves with twist increasing from 0 to 1 turn in 40 calibres (i.e. in 320 in) at the muzzle.
Ammunition
Ammunition
The ammunition was mainly studded, with the studs engaging in the Woolwich rifling grooves. However, a studless pointed common shell with automatic gas-check also became available later in the gun's life.
Identity
Identity
RML 8 inch 9 ton gun is classified as a rifled muzzle loader, coastal artillery weapon or naval artillery. Associated with United Kingdom of Great Britain and Ireland.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
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