R-4 (missile)

Last updated
R-4
AA-5 Ash
Tupolev Tu-128 at Central Air Force Museum Monino pic2.JPG
R-4 missile under wing of Tupolev Tu-128
TypeHeavy air-to-air missile
Place of origin Soviet Union
Service history
In service1963-1990
Used by Soviet Air Forces
Production history
Manufacturer Bisnovat
Specifications (R-4R)
Mass492.5 kg (1,086 lb)
Length5.44 m (17 ft 10 in)
Diameter310 mm (12 in)
Warhead High explosive
Warhead weight53 kg (117 lb)

EngineSolid-fuel rocket
Operational
range
2 to 25 kilometres (1.2 to 15.5  mi)
Maximum speed Mach 1.6
Guidance
system
Semi-active radar homing (R-4R)
Infrared homing (R-4T)
Launch
platform
Tu-128

The Bisnovat (later Molniya ) R-4 (NATO reporting name AA-5 'Ash') was an early Soviet long-range air-to-air missile. It was used primarily as the sole weapon of the Tupolev Tu-128 interceptor, matching its RP-S Smerch ('Tornado') radar.

Contents

History

Development of the R-4 began in 1959, initially designated as K-80 or R-80, entering operational service around 1963, together with Tu-128. Like many Soviet weapons, it was made in both semi-active radar homing (R-4R) and infrared-homing (R-4T) versions. Standard Soviet doctrine was to fire the weapons in SARH/IR pairs to increase the odds of a hit.[ citation needed ] Target altitude was from 8 to 21 km. Importantly for the slow-climbing Tu-128, the missile could be fired even from 8 km below the target.

In 1973 the weapon was modernized to R-4MR (SARH) / MT (IR) standard, with lower minimal target altitude (0.5–1 km), [1] improved seeker performance, and compatibility with the upgraded RP-SM Smerch-M radar.

The R-4 survived in limited service until 1990, retiring along with the last Tu-128 aircraft.

Operators

Flag of the Soviet Union.svg  Soviet Union

Specifications (R-4T / R-4R)

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References

  1. "Russia's Super-Sized Tu-128 Fighter: The Supersonic B-52 Killer". April 2017.