Vickers .50 machine gun

The Vickers .50 machine gun, also known as the 'Vickers .50' was similar to the .303 inches (7.70 mm) Vickers machine gun but enlarged to use a larger-calibre 0.5-inch (12.7 mm) round. It saw some use in tanks and other fighting vehicles but was more commonly used as a close-in anti-aircraft weapon on Royal Navy and Allied ships, typically in a four-gun mounting. The Vickers fired British .50 Vickers (12.7×81mm) ammunition, not the better known American .50 BMG (12.7×99mm).

Vickers .50 machine gun
MWP Vickers HMG
A Vickers .50 machine gun, Polish Army Museum, Warsaw (2006)
TypeMachine gun
Anti-aircraft gun
Place of originUnited Kingdom
Service history
In service1932–1954
Used byUnited Kingdom
Ireland
WarsWorld War II
Production history
ManufacturerVickers
VariantsMarks I–V[note 1]
Specifications (Vickers .5 Mk V)
Mass63 pounds (29 kg) (includes 10 pounds (4.5 kg) cooling water)
Length52.4 inches (1,330 mm)
Barrel length31 inches (790 mm)

Cartridge12.7×81mmSR
Calibre0.5 inches (12.7 mm)
Rate of fire500–600 rounds per minute
Muzzle velocity2,540 feet per second (770 m/s)
Maximum firing rangeAltitude: 9,500 feet (2,900 m)
Range: 4,265 yards (3,900 m)
Feed systembelt

Mark I

The Mark I was the development model.

Mark II, IV and V

The Mark II entered service in 1933 and was mounted in some British tanks. Marks IV and V were improved versions and were also used on trucks in the North Africa Campaign. It was superseded for use in armoured fighting vehicles (AFVs) during World War II by the 15 mm (0.59 in) Besa.[1]

Mark III

HMS Vanity Vickers .50 guns 1940 IWM A 1249
A four-gun, naval anti-aircraft mounting, on board the destroyer HMS Vanity (1940)

The Mark III was a naval version used as an anti-aircraft weapon, mostly by the Royal Navy and allied navies in World War II, typically in mountings of 4 guns. It proved insufficiently powerful at short-range against modern all-metal aircraft and was superseded during World War II by the Oerlikon 20 mm cannon. The naval quad mount featured a 200-round magazine per barrel, which wrapped the ammunition belt around the magazine drum and provided a maximum rate of fire of 700 rounds per minute, per gun.[2] The four-barrel mounting had its guns adjusted to provide a spread of fire, amounting to 60 ft (18 m) wide and 50 ft (15 m) high at 1,000 yd (910 m).[1] Vickers claimed that it could fire all 800 rounds in 20 seconds and could then be reloaded in a further 30 seconds.[1] During the Second World War it was also mounted on power-operated turrets in smaller craft such as Motor Gun Boats and Motor Torpedo Boats.

See also

Notes

  1. ^ i.e. Marks 1, 2, 3, 4, 5. Britain used Roman numerals to denote Marks (models) of ordnance until after World War II.

References

  1. ^ a b c Williams, Anthony G. "THE .5" VICKERS GUNS AND AMMUNITION". www.quarry.nildram.co.uk. Retrieved 20 May 2013.
  2. ^ DiGiulian.

Bibliography

Fuze Keeping Clock

The Fuze Keeping Clock (FKC) was a simplified version of the Royal Navy's High Angle Control System analogue fire control computer. It first appeared as the FKC MkII in destroyers of the 1938 Tribal class, while later variants were used on sloops, frigates, destroyers, aircraft carriers and several cruisers. The FKC MkII was a non-tachymetric anti-aircraft fire control computer. It could accurately engage targets with a maximum speed of 250 knots (460 km/h; 290 mph).

HMIS Bihar (J247)

HMIS Bihar (J247) was a Bangor-class minesweeper built for the Royal Navy. It transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Deccan (J129)

HMIS Deccan (J129) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Indus (U67)

HMIS Indus was a Grimsby-class sloop of the Royal Indian Navy launched in 1934 and sunk during the Second World War in 1942. She was a slightly enlarged version of other vessels in the Grimsby class. She was named after the Indus River. Indus served mainly as an escort vessel, and she was therefore lightly armed. Her pennant number was changed to U67 in 1940.

HMIS Konkan (J228)

HMIS Konkan (J228) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Malwa (J55)

HMIS Malwa (J55) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Orissa (J200)

HMIS Orissa (J200) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Oudh (J245)

HMIS Oudh (J245) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMIS Rajputana (J197)

HMIS Rajputana (J197) was a Bangor-class minesweepers built for the Royal Navy, but transferred to the Royal Indian Navy (RIN) during the Second World War.

HMS Cromer (J128)

HMS Cromer was a Bangor-class minesweepers built for the Royal Navy during the Second World War.

HMS Felixstowe (J126)

HMS Felixstowe was a Bangor-class minesweepers built for the Royal Navy during the Second World War.

HMS Gleaner (J83)

HMS Gleaner was one of 21 Halcyon-class minesweepers built for the Royal Navy in the 1930s.

HMS Hebe (J24)

HMS Hebe was one of 21 Halcyon-class minesweepers built for the Royal Navy in the 1930s.

HMS Peterhead (J59)

HMS Peterhead was a Bangor-class minesweepers built for the Royal Navy during the Second World War.

HMS Speedy (J17)

HMS Speedy was one of 21 Halcyon-class minesweepers built for the Royal Navy in the 1930s.

HMS Valentine (L69)

HMS Valentine was a V and W-class destroyer, built in 1917 for the Royal Navy. She fought in both world wars, serving in several capacities. She was heavily damaged by air attack and beached in 1940 near Terneuzen. Her hulk remained there until it was broken up in 1953.

HMS Woolwich (F80)

HMS Woolwich was a depot ship and destroyer tender built for the Royal Navy during the 1930s. The ship was initially deployed to support destroyers of the Mediterranean Fleet. During World War II, she was assigned to the Home, Mediterranean and Eastern Fleets. She briefly returned home in 1946, but rejoined the Mediterranean Fleet the following year. Woolwich permanently returned to the United Kingdom in 1948 where she became a maintenance and accommodation ship. The ship was sold for scrap in 1962.

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Matilda I (tank)

The Tank, Infantry, Mk I, Matilda I (A11) was a British infantry tank of the Second World War. Despite being slow, cramped and only armed with a single machine gun, the Matilda I had some success in the Battle of France in 1940, owing to its heavy armour which was proof against the standard German anti-tank guns. It is not to be confused with the later model Tank, Infantry Mk II (A12), also known as the "Matilda II", which took over the "Matilda" name after the Matilda I was withdrawn from combat service in 1940. They were completely separate designs.

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