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 and shore targets since 1938. This article covers the early 45-calibre family of guns up to the 1970s. For the later unrelated 55-calibre Royal Navy gun, see 4.5 inch Mark 8 naval gun. Like all British nominally 4.5 inch naval guns, the QF Mk I has an actual calibre of 4.45 inches (113 mm).
The 2-pounder gun, officially the QF 2-pounder and universally known as the pom-pom, was a 40 mm (1.6 in) British autocannon, used as an anti-aircraft gun by the Royal Navy. The name came from the sound that the original models make when firing. This QF 2-pounder was not the same gun as the Ordnance QF 2-pounder, used by the British Army as an anti-tank gun and a tank gun, although they both fired 2 lb (0.91 kg), 40 mm (1.6 in) projectiles.
A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets.
The Cannone da 90/53 was an Italian-designed cannon used both in an anti-aircraft role and as an anti-tank gun during World War II. It was one of the most successful anti-aircraft guns to see service during the conflict. The naval version of the gun was mounted on Italian battleships of the Littorio-class and the Andrea Doria-class.
The 76-mm air-defense gun M1914/15 was the first Russian purpose-built anti-aircraft gun. Adopted during World War I, the gun remained in production until 1934.
The Breda 20/65 mod.35, also simply known as 20 mm Breda or Breda Model 35, among other variations, was an Italian 20 mm (0.787 in) anti-aircraft gun produced by the Società Italiana Ernesto Breda of Brescia company during the 1930s and early 1940s. It saw heavy usage during the Spanish Civil War and World War II, among other conflicts. It was designed in 1932 and adopted by the Italian armed forces in 1935, becoming one of two major 20 mm caliber anti-aircraft guns used by Italy during World War II, along with the Scotti-Isotta Fraschini 20/70, both of which fired the Swiss 20x138mmB "Solothurn Long" cartridge.
The QF 6-inch 40 calibre naval gun (Quick-Firing) was used by many United Kingdom-built warships around the end of the 19th century and the start of the 20th century.
The QF 12-pounder 12-cwt gun (Quick-Firing) was a common, versatile 3-inch (76.2 mm) calibre naval gun introduced in 1894 and used until the middle of the 20th century. It was produced by Armstrong Whitworth, Elswick and used on Royal Navy warships, exported to allied countries, and used for land service. In British service "12-pounder" was the rounded value of the projectile weight, and "12 cwt (hundredweight)" was the weight of the barrel and breech, to differentiate it from other "12-pounder" guns.
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 defend against new, small and fast vessels such as torpedo boats and later submarines. There were many variants produced, often under license which ranged in length from 40 to 58 calibers, but 40 caliber was the most common version.
The QF 3-pounder Hotchkiss or in French use Canon Hotchkiss à tir rapide de 47 mm were a family of long-lived light 47 mm naval guns introduced in 1886 to defend against new, small and fast vessels such as torpedo boats and later submarines. There were many variants produced, often under license which ranged in length from 32 to 50 calibers but 40 caliber was the most common version. They were widely used by the navies of a number of nations and often used by both sides in a conflict. They were also used ashore as coastal defense guns and later as an anti-aircraft gun, whether on improvised or specialized HA/LA mounts.
The Cannone da 152/45 modello 1911 was an Italian naval gun built by the Ansaldo company. It formed the secondary armament of the two Andrea Doria-class dreadnought battleships built during World War I. A number of guns were also converted to siege artillery and coastal artillery roles and served during both world wars.
The Cannone da 75/27 modello 06 was a field gun used by Italy during World War I and World War II. It was a license-built copy of the Krupp Kanone M 1906 gun. It had seats for two crewmen attached to the gunshield as was common practice for the period. Captured weapons were designated by the Wehrmacht during World War II as the 7.5 cm Feldkanone 237(i).
The Mirabello class were a group of three destroyers(originally scout cruisers) built for the Regia Marina during World War I. Carlo Alberto Racchia was sunk by a mine in the Black Sea during the Allied intervention in the Russian Civil War in 1920. The remaining two ships, obsolescent by 1938, were re-rated as destroyers and participated in World War II. Carlo Mirabello was also lost to a mine while escorting a convoy in 1941. The last surviving ship, Augusto Riboty, was reconfigured as a convoy escort in 1942–1943. The torpedo tubes were removed and depth charges and 20 mm (0.79 in) anti-aircraft guns added. She survived the war and was transferred to the Soviet Union as war reparations in 1946. The ship was scrapped five years later.
The Type 41 3-inch (76 mm) naval gun otherwise known as the 8 cm/40 3rd Year Type naval gun was a Japanese dual-purpose gun introduced before World War I. Although designated as 8 cm (3.15 in), its shells were 76.2 mm (3 in) in diameter.
The Cannon 102/35 Model 1914 was a naval gun of the Royal Italian Navy in World War I and World War II, which was modified for shore based anti-aircraft, field artillery, railway gun and coastal artillery roles.
The Cannone da 76/45 S 1911 was a naval gun used by Italy during World War I and World War II. In addition to its naval role it was also employed in coastal artillery, railway gun and anti-aircraft roles.
Augusto Riboty was one of three Mirabello-class destroyers built for the Regia Marina during World War I.
Carlo Alberto Racchia was one of three Mirabello-class destroyers built for the Regia Marina during World War I.
Carlo Mirabello was one of three Mirabello-class destroyers built for the Regia Marina during World War I.
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