The QF 3-inch 20 cwt anti-aircraft gun became the standard anti-aircraft gun used in the home defence of the United Kingdom against German Zeppelins airships...

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...

The QF 4.5 inch gun has been the standard medium-calibre naval gun used by the Royal Navy as a medium-range weapon capable of use against surface, aircraft...

The QF 4 inch Mk XVI gun was the standard British Commonwealth naval anti-aircraft and dual-purpose gun of World War II. The Mk XVI superseded the earlier...

The 4.7 inch QF Mark IX and Mark XII were 45-calibre, 4.7-inch (120 mm) naval guns which armed the majority of Royal Navy and Commonwealth destroyers in...

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...

defence of England (against German heavy bombers) by the more powerful QF 3 inch 20 cwt gun, but continued in all other theatres. It was usually deployed mounted...

The QF 5.25-inch Mark I gun was the heaviest dual-purpose gun used by the Royal Navy during the Second World War. Although considered less than completely...

eventually adopted the QF 3-inch 20 cwt as the most commonly used type. Shortly before the end of the war, a new QF 3.6 inch gun was accepted for service...

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...

The British QF (quick-firing) 6-pounder 10 cwt gun was a 57 mm twin-mount light coast defence and naval gun from the 1930s to 1950s. Following the emergence...

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...

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...

Ordnance, QF 3.7-inch howitzer is a mountain gun, used by British and Commonwealth armies in the First and Second World Wars, and between the wars. The...

The QF 4-inch gun Mk IV was the main gun on most Royal Navy and British Empire destroyers in World War I. It was introduced in 1911 as a faster-loading...

Ordnance 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...

7 inch QF Mark XI was a 50-calibre, 4.7-inch (120 mm) naval gun mounted on Royal Navy (RN) and Allied destroyers during World War II. The QF 4.7-inch Mk...

The BL 15-inch Mark I succeeded the BL 13.5-inch Mk V naval gun. It was the first British 15-inch (380 mm) gun design and the most widely used and longest...

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...

gun 3"/50 caliber gun - US dual purpose naval gun 3"/23 caliber gun - US dual purpose naval gun QF 3 inch 20 cwt - British anti-aircraft gun 3-inch Gun...

The QF 4-inch Mk XIX gun was a British low-velocity 4-inch 40-calibre naval gun used to arm small warships such as Bathurst and Castle-class corvette and...

much lighter than the QF 3 inch 20 cwt AA gun, for anti-aircraft use it lacked its range and shell weight. Hence the 3 inch 20 cwt gun became the preferred...

The Ordnance QF 3-pounder Vickers (47 mm / L50) was a British artillery piece first tested in Britain in 1903. It was used on Royal Navy warships. It was...

The QF 4.7 inch Gun Mark VIII was a British naval anti-aircraft gun designed in the 1920s for the Royal Navy. This was the largest caliber fixed ammunition...

inches (45 calibres long). Weight of gun (without breech or counterbalance: 77 tons 14 cwt 84 lbs. Weight of gun with counterbalance: 89 tons 2 cwt 84...

the 1950s. The gun superseded the QF six-inch gun of the 1890s, a period during which the Royal Navy had evaluated QF technology (i.e. loading propellant...

The QF 4-inch gun Mks I, II, III were early British QF (quick-firing) naval guns originating in 1895. They all had barrels of 40 calibres length. The gun...

Ordnance QF 4.5-inch howitzer was the standard British Empire field (or "light") howitzer of the First World War era. It replaced the BL 5-inch howitzer...

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...

3-inch/23-caliber gun - US Navy AA gun 3-inch/50-caliber gun - US Navy dual-purpose gun United States home front during World War I British QF 3-inch...