Gryazev-Shipunov GSh-6-30

Last updated
Gryazev-Shipunov GSh-6-30
GSh-6-30 Hu Szolnok 1.jpg
Type Rotary cannon
Place of originSoviet Union
Service history
In service1975–present
Production history
Designer KBP
ManufacturerKBP
Specifications
Mass149 kg (328 lb)
Projectile: 390 g (13¾ oz)
Length2,040 mm

Shell 30×165mm
Caliber 30 mm (1.18 in)
Barrels6
Action Gas actuated, electrically fired
Rate of fire 4,000–6,000 rounds/min [1]
Muzzle velocity 845 m/s (2,770 ft/s)[ citation needed ]

The Gryazev-Shipunov GSh-6-30 (Russian: Грязев-Шипунов ГШ-6-30) [2] is a Russian 30 mm rotary cannon aircraft-mounted and naval autocannon used by Soviet and later CIS military aircraft. The GSh-6-30 fires a 30×165mm, 390 g (13+34 oz) projectile. [3]

Contents

Description

The GSh-6-30, designed in the early 1970s and entering service in 1975, has a six barrel design that is similar to the Gryazev-Shipunov GSh-6-23. It was based on the naval AO-18 used in the AK-630 system. Unlike most modern rotary cannons, it is gas-operated rather than hydraulically driven, allowing it to "spin up" to maximum rate of fire more quickly, allowing more rounds to be placed on target in a short-duration burst. This makes the weapon advantageous in dogfights, where pilots often have a very small window for engaging the enemy. Ignition is electrical, as with the smaller GSh-6-23.

On the MiG-27 "Flogger" the GSh-6-30 had to be mounted obliquely to absorb recoil. The gun was noted for its high (often uncomfortable) vibration and extreme noise. The airframe vibration led to fatigue cracks in fuel tanks, numerous radio and avionics failures, the necessity of using runways with floodlights for night flights (as the landing lights would often be destroyed), tearing or jamming of the forward landing gear doors (leading to at least three crash landings), cracking of the reflector gunsight, an accidental jettisoning of the cockpit canopy and at least one case of the instrument panel falling off in flight. The weapons also dealt extensive collateral damage, as the sheer numbers of fragments from detonating shells was sufficient to damage aircraft flying within a 200-meter radius from the impact center, including the aircraft firing. [4]

The principal application for the GSh-6-30 is the MiG-27, which carries the weapon in a gondola under the fuselage, primarily for strafing and ground attack. It was fitted to some Su-25TM aircraft, but subsequently replaced with the GSh-30-2 twin-barreled autocannon of the original Su-25. It is also used as the gun component of the CADS-N-1 Kashtan Close-in weapon system.

Variants

Users

See also

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Gryazev-Shipunov may refer to:

References

  1. "KBP Instrument Design Bureau - GSh-6-30".
  2. 1 2 "Born in the USSR: Russia's most vicious Soviet mini-artillery guns - Russia Beyond".
  3. http://atomictoasters.com/2012/02/the-gryazev-shipunov-gsh-6-30-a-destructive-force/
  4. Kruszelnicki, Dr Karl (November 2013). Game of Knowns: Science is Coming - Dr Karl Kruszelnicki - Google Books. ISBN   9781743514375.

General references