The Vickers K machine gun, known as the Vickers Gas Operated (Vickers G.O.) or Gun, Machine, Vickers G.O. .303-inch in British service, was a rapid-firing

machine gun A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles) ar ...

developed and manufactured for use in aircraft by

Vickers-Armstrongs Vickers-Armstrongs Limited was a British engineering conglomerate formed by the merger of the assets of Vickers Limited and Sir W G Armstrong Whitworth & Company in 1927. The majority of the company was nationalised in the 1960s and 1970s, w ...

. The high rate of fire was needed for the short period of time when the gunner would be able to fire at an attacking aircraft. The weapon was adopted for land use during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

Development

The Vickers K was a development of the Vickers-Berthier (VB)

light machine gun A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the sa ...

, adopted in 1932 by the

Indian Army The Indian Army is the land-based branch and the largest component of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Army, and its professional head is the Chief of Army Staff (COAS), who is a four- ...

.Weeks, John, ''World War II Small Arms'', New York: Galahad Books (1979), , p. 88-89 The VB, like the

Bren light machine gun The Bren gun was a series of light machine guns (LMG) made by Britain in the 1930s and used in various roles until 1992. While best known for its role as the British and Commonwealth forces' primary infantry LMG in World War II, it was also used ...

, used a locking tilting breechblock. However, unlike the Bren, the VB locked its breech only at the last moment of forward travel and this enabled the development of the Vickers K also known as the "Vickers Gas Operated" (VGO) or "Vickers GO" . With lighter moving parts and the VB locking design, the Vickers K had an adjustable rate of fire between 950 and 1,200 rounds per minute; faster than the German

MG34 The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a German recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely ne ...

. The weapon was adopted for British service as the VGO. It was test-flown with a large 300-round

pan magazine A magazine is an ammunition storage and feeding device for a repeating firearm, either integral within the gun (internal/fixed magazine) or externally attached (detachable magazine). The magazine functions by holding several cartridges withi ...

, and beat the .303 Browning in reliability. However, the wide pan would have caused problems to accommodate, since it would have interfered with wing structures. When the belt-fed Browning Mark II was selected as the standard machine-gun armament for RAF aircraft, the VGO became redundant for the RAF. It continued to be used by the

Fleet Air Arm The Fleet Air Arm (FAA) is one of the five fighting arms of the Royal Navy and is responsible for the delivery of naval air power both from land and at sea. The Fleet Air Arm operates the F-35 Lightning II for maritime strike, the AW159 Wil ...

until 1945.

Variants

Some were made in 7.7mm for the Belgians before the war and at least one example of the ground variant survives in a Brussels museum.

VGO No.1 Mk.1.

The Vickers class K/Vickers G.O. machine gun is a gas-operated weapon, firing from an open bolt (thus making it non- synchronizable for firing through a spinning propeller) in full automatic mode only. Its gas cylinder is located below the barrel, and a long-stroke gas piston operates a vertically tilting bolt. Feed is from top-mounted flat pan magazines with a nominal capacity of 100 rounds, although it was customary to load only 96 or 97 rounds to ensure reliable feeding. The gun is fitted with a single spade grip at the rear of receiver, with trigger to control fire. In ground use, it was normally

mounted Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Co ...

on single or twin pintle mounts on various jeeps and trucks.

Vickers GO No.2 Mk.1 Land Service

Originally intended for RAF airfield defence units, these guns were remanufactured from original Vickers G.O. No.1 Mk.1 aircraft guns. A number of these ‘Vickers G.O. Land Service’ machine guns found their way to a variety of British commando and reconnaissance units which operated in Europe during 1944 and 1945. The Land variant has the spade grip replaced with a "semi bullpup" short stock at the rear and a pistol grip with trigger below the receiver. A short forend or a folding carrying handle are added below the gas cylinder, and a folding bipod is attached to the gas block. New iron sights are provided on folding bases.

Vickers G.O. Camera Gun

A camera gun version was made for training. The body was of cast metal. The grip and trigger mechanism were realistic. Gunners in training exposed film when "shooting" at attacking aircraft and these images were analysed later. This was a technique developed in World War I with Lewis Camera Guns.

Combat use

Special Air Service in North Africa E 21337

Royal Air Force Coastal Command, 1939-1945

The Vickers K was fitted to light and medium bombers in RAF service such as the

Fairey Battle The Fairey Battle is a British single-engine light bomber that was designed and manufactured by the Fairey Aviation Company. It was developed during the mid-1930s for the Royal Air Force (RAF) as a monoplane successor to the Hawker Hart and ...

and

Handley Page Hampden The Handley Page HP.52 Hampden is a British twin-engine medium bomber that was operated by the Royal Air Force (RAF). It was part of the trio of large twin-engine bombers procured for the RAF, joining the Armstrong Whitworth Whitley and Vickers ...

. It was also used in

gun turret A gun turret (or simply turret) is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechani ...

s, such as the dorsal turret in the

Bristol Blenheim The Bristol Blenheim is a British light bomber aircraft designed and built by the Bristol Aeroplane Company (Bristol) which was used extensively in the first two years of the Second World War, with examples still being used as trainers until ...

, the nose turret in the

Armstrong Whitworth Whitley The Armstrong Whitworth A.W.38 Whitley was a British medium bomber aircraft of the 1930s. It was one of three twin-engined, front line medium bomber types that were in service with the Royal Air Force (RAF) at the outbreak of the Second World ...

and the rear of the cockpit in the

. It was the standard

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against ...

"Telegraphist Air Gunner" machine gun, on British built carrier (Torpedo Strike Reconnaissance) aircraft - the

Fairey Swordfish The Fairey Swordfish is a biplane torpedo bomber, designed by the Fairey Aviation Company. Originating in the early 1930s, the Swordfish, nicknamed "Stringbag", was principally operated by the Fleet Air Arm of the Royal Navy. It was also us ...

, the

Fairey Albacore The Fairey Albacore is a single-engine biplane torpedo bomber designed and produced by the British aircraft manufacturer Fairey Aviation. It was primarily operated by the Royal Navy Fleet Air Arm (FAA) and was heavily used during the Second ...

and the

Fairey Barracuda The Fairey Barracuda was a British carrier-borne torpedo and dive bomber designed by Fairey Aviation. It was the first aircraft of this type operated by the Royal Navy's Fleet Air Arm (FAA) to be fabricated entirely from metal. The Barracuda ...

. As supplies of air-cooled .303 in (7.7 mm) Browning machine guns increased the Vickers G.O. was phased out of use with the RAF. These machine guns were then reallocated from RAF stocks to units of the British and Commonwealth armies. The gun continued in service with the Fleet Air Arm and its last recorded use by the navy was by 812 Squadron RNAS Barracudas in anti piracy patrols off Hong Kong in October 1945. The

Long Range Desert Group The Long Range Desert Group (LRDG) was a reconnaissance and raiding unit of the British Army during the Second World War. Originally called the Long Range Patrol (LRP), the unit was founded in Egypt in June 1940 by Major Ralph Alger Bagnold, acti ...

was supplied with large numbers of the Vickers G.O. for use on its vehicles. They were used in single or custom built twin mountings. The Special Air Service adopted it for their hit and run tactics, mounting it in pairs on their jeeps. Over the years, it was assumed by some that the latter services took the phased-out VGO because they could obtain no other suitable machine guns but with its high rate of fire and low-friction locking design (which proved resistant to jams from sand), the LRDG and SAS found the G.O. markedly superior to either the .303 in (7.7 mm) water-cooled Vickers or the Bren gun. In a similar manner, the Airborne Reconnaissance Squadron of the

Reconnaissance Corps The Reconnaissance Corps, or simply Recce Corps, was a corps of the British Army, formed during the Second World War whose units provided reconnaissance for infantry divisions. It was formed from infantry brigade reconnaissance groups on 14 Janu ...

mounted the VGO on jeeps when they were attached to the 1st Airborne Division during

Operation Market-Garden Operation Market Garden was an Allied military operation during the Second World War fought in the Netherlands from 17 to 27 September 1944. Its objective was to create a salient into German territory with a bridgehead over the River Rhine, ...

in September 1944. Royal Marine and Army Commandos used the VGO for infantry support/

squad automatic weapon A squad automatic weapon (SAW), also known as a section automatic weapon or light support weapon (LSW), is a man-portable automatic firearm attached to infantry squads or sections as a source of rapid direct firepower. Weapons fulfilling th ...

briefly around D-Day. In the

Coastal Forces of the Royal Navy Coastal Forces was a division of the Royal Navy initially established during World War I, and then again in World War II under the command of Rear-Admiral, Coastal Forces. It remained active until the last minesweepers to wear the "HM Coastal F ...

, the Vickers K began to replace the Lewis gun on board Motor Torpedo Boats,

Motor Launch A Motor Launch (ML) is a small military vessel in Royal Navy service. It was designed for harbour defence and submarine chasing or for armed high-speed air-sea rescue. Some vessels for water police service are also known as motor launches. ...

es and other light craft, from 1942 onwards.John Lambert and Al Ross, Allied Coastal Forces of World War II: Vol III Vosper MTBs and US Elcos, Conway Marine Press 1993, (p. 25)

References

External links

Vickers K (Vickers machine gun site)

a 1939 ''Flight'' article on the Vickers K Machine Gun. {{WWIIBritishAircraftWeapons Aircraft guns World War II machine guns World War II infantry weapons of the United Kingdom K Machine guns of the United Kingdom Medium machine guns Military equipment introduced in the 1930s