The Ordnance QF Hotchkiss 6 pounder gun Mk I and Mk II or QF 6 pounder 8 cwt were a family of long-lived light 57 mm naval guns introduced in 1885 to...

the British QF 3-pounder were largely the same gun. Like the British who paired their 3-pounders with the larger QF 6-pounder Hotchkiss the French often...

The Ordnance QF 6-pounder 6 cwt Hotchkiss Mk I and Mk II was a shortened version of the original QF 6 pounder Hotchkiss naval gun, and was developed specifically...

QF 6 pounder 6 cwt Hotchkiss, a British 57 mm tank gun of 1917 QF 6 pounder Nordenfelt, a 57 mm naval gun of the 1880s very similar to the Hotchkiss Ordnance...

Nordenfelt gun was adopted at the same time as the very similar QF 6 pounder Hotchkiss, but the Navy was not satisfied with the special Nordenfelt ammunition...

warships. It was more powerful than and unrelated to the older QF 3-pounder Hotchkiss, with a propellant charge approximately twice as large, but it initially...

The Ordnance QF 18-pounder, or simply 18-pounder gun, was the standard British Empire field gun of the First World War-era. It formed the backbone of...

The QF 12-pounder 12-cwt gun (Quick-Firing) (abbreviated as Q.F. 12-pdr. [12-cwt.]) was a common, versatile 3-inch (76.2 mm) calibre naval gun introduced...

field guns QF 13-pounder 6 cwt AA gun: WWI improvised anti-aircraft version QF 13-pounder 9 cwt: later WWI anti-aircraft version (18-pounder gun modified...

The QF 1 pounder, universally known as the pom-pom due to the sound of its discharge, was a 37 mm British autocannon, the first of its type in the world...

The 2-pounder gun, officially the QF 2-pounder (QF denoting "quick firing") and universally known as the pom-pom, was a 40 mm (1.6 in) British autocannon...

anti-aircraft guns based on the existing 13-pounder and 18-pounder guns proved inadequate, apart from the QF 13-pounder 9 cwt but even that could not reach high...

The QF principle had proved successful with the much smaller QF 3 pounder Hotchkiss and Nordenfelt QF 3- and 6-pounders from 1885 onwards, and with QF 4...

The QF 12 pounder 18 cwt gun (Quick-Firing) was a 3-inch high-velocity naval gun used to equip larger British warships such as battleships for defence...

made and less powerful Mark I 80-pounder and introduced a 100-pound projectile, which became standard for British 6-inch guns until 1930. It consisted...

intended to be a more powerful alternative to the quick-firing 3-inch QF 12-pounder gun, and a faster-firing replacement for the BL 4-inch gun. It was mounted...

boilers. Armament consisted of one QF 12 pounder gun mounted on a "bandstand" on the forecastle, five QF 6 pounder Hotchkiss guns (two abreast the conning...

60-pounder was a British 5-inch (127 mm) heavy field gun designed in 1903–05 to provide a new capability that had been partially met by the interim QF 4...

protection of Axis tanks improved, the 2-pounder lost effectiveness and it was gradually replaced by the 57 mm QF 6-pounder starting in 1942. It equipped infantry...

The Ordnance QF 12-pounder 8 cwt was a Royal Navy "landing gun" intended for navy use ashore. "8 cwt" refers to the weight of the gun and breech, approximately...

later Gay-class, although their primary armament was a mixture of QF 6-pounder Hotchkiss, Oerlikon 20 mm cannon, and depth charges. Both had left service...

wheels. It replaced the obsolete BL 12-pounder 6 cwt gun in Royal Horse Artillery service until the QF 13-pounder became available from 1904. When the Territorial...

ten BL 6-inch (152 mm) guns, five on each broadside. Protection against torpedo boats was provided by six quick-firing (QF) 6-pounder Hotchkiss guns and...

QF 13 pounder Mk III anti-aircraft gun, also known as 13 pounder 6 cwt, was an early British improvisation in World War I to adapt the QF 13-pounder field...

18-pounder. It is the gun that writers usually mean by "15-pounder gun" in World War I, but can be confused with the earlier Ordnance QF 15-pounder Ehrhardt...

The QF 4 inch Mk V gun was a Royal Navy gun of World War I which was adapted on HA (i.e. high-angle) mountings to the heavy anti-aircraft role both at...

The 12 pounder 12 cwt anti-aircraft gun was a British anti-aircraft gun of the First World War, The guns were QF 12 pounder 12 cwt naval guns taken from...

The QF 14-pounder Mk I & II was a 3-inch high-velocity naval gun used to equip battleships for defence against torpedo boats. It was produced for export...

of the modern quick-firing Ehrhardt QF 15-pounder in 1901, and was replaced by that and later by the QF 13-pounder from 1905. The early No. 56 Fuze burned...

with the Hotchkiss 3-pounder. The Hotchkiss 6-pounder was adopted by the British army for the first tanks. During World War II the 6-pounder was the main...