Besa machine gun
| Machine Gun, BESA | |
|---|---|
Besa machine gun
|
|
| Type | Tank mounted Medium machine gun |
| Place of origin |  United Kingdom |
| Service history | |
| Used by | United Kingdom  Ireland |
| Wars | Second World War |
| Production history | |
| Designer | Vaclav Holek |
| Designed | 1936 |
| Manufacturer | The Birmingham Small Arms Company Limited |
| Variants | Mark II Mark III, III* 15 mm |
| Specifications | |
| Weight | 47 lb (21 kg) empty |
| Length | 43.5 in (1,100 mm) |
| Barrel length | 29 in (740 mm) |
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|
|
| Cartridge | 7.92×57mm Mauser |
| Calibre | 7.9mm |
| Action | gas automatic |
| Rate of fire | 500-800 round/min |
| Muzzle velocity | 2,700 ft/s (823 m/s) |
| Feed system | 225 metal link belt |
The Besa Machine Gun was a British version of the Czechoslovak ZB-53 air-cooled, belt-fed machine-gun, which in the Czechoslovak army was marked as the TK vz. 37.[note 1] It was used extensively by the armed forces of United Kingdom during the Second World War, as a mounted machine gun for tanks and other armoured vehicles, to replace the heavier, water-cooled Vickers machine gun. Although it required a rather large opening in the tank's armour, it was dependable and reliable. The name came from the Birmingham Small Arms Company (BSA), who signed an agreement with Československá zbrojovka to manufacture the gun in the UK. The War Office ordered the weapon in 1938, and production began in 1939, after modifications.
Development and use
Although Britain's armed forces used the .303 in rimmed round for rifles and machine guns, the ZB-53 had been designed for the German 7.92×57mm Mauser round - referred to by the British as the 7.92mm. Although it had been intended for the British to move from rimmed to rimless ammunition generally, with war imminent wholesale change was not possible. It was considered by BSA and the Ministry of Supply that the industrial, technical, and logistical difficulty of converting the design to the .303 round would be more onerous than retaining the original calibre, especially given that the chain of supply for the Royal Armoured Corps was already separate from the other fighting arms of the British Army. As a consequence, the round was not changed for British production. Since the Besa used the same ammunition as Germany used in its rifles and machine guns, the British could use stocks of captured enemy ammunition.
The Mark II version entered production in 1940. It was modified with a selector to give high (around 800 rounds per minute) or low (around 500) rates of fire. As the war progressed the design was modified to be more rapidly and economically produced, resulting in the Mark III version. This came as either an "L" (for low) or "H" (high) firing rate models.[1] While American-produced armoured cars or tanks would have been fitted with .30 cal Browning machine guns, many British tanks and armoured cars would be equipped with the Besa machine gun.
| Cartridge SA Besa 7.92 | Mark IZ, IIZ |
| Cartridge SA Armour-piercing 7.92 | Mark IZ, IIZ |
| Cartridge SA tracer 7.92 | Mark IZ, IIZ |
| Cartridge SA incendiary 7.92 | Mark I |
15mm Besa machine gun
A larger, heavier - at 57 kg (125 lb) - 15 mm version, also belt-fed, was developed by BSA from the Czechoslovak ZB vz.60 heavy machine-gun as vehicle armament. It could be fired in semi-automatic mode as well as fully automatic. It was used on the Light Tank Mk VIC and on armoured cars such as the Humber Armoured Car Marks I-III. Over 3,200 15mm BESA were manufactured until it was declared obsolete in 1949.[2] It fired a 75 gram bullet from a 15×104mm cartridge with a muzzle velocity of 818.3 m/s (2,685 ft/s) at a rate of 450 rounds per minute.[3] A few of the original ZB-60 guns were also used by the SS although mostly with the ammunition of the MG 151/15, which was slightly shorter having a case length of only 101 mm.[4] The 15 mm Besa was fed from 25-round metal belts, which limited its practical rate of fire, although the weapon was usually used for single shots as it was difficult to fire accurately in automatic mode.[5]
See also
- Bren gun - another ZB design taken up by the UK
References
- Notes
- ↑ "TK" from těžký kulomet "heavy machine gun"; "vz" from vzor "Model"
- Citations
- ↑ http://www.militaryfactory.com/smallarms/detail.asp?smallarms_id=221 accessed 27 December 2007
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Мастер-ружье issue 116, Nov 2006, p. 67
- ↑ David Fletcher (1989). Universal Tank: British Armour in the Second World War - Part 2. HMSO. ISBN 0-11-290534-X. p.20
- Bibliography
- The ZB-53, heavy machine gun model 37 - in Czech
- Tanks equipment page Accessed 29 November 2007
- David Boyd Other British Tank Armaments wwiiequipment.com 1 January 2009
External links
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Wikimedia Commons has media related to Besa. |
