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UR-200

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Not to be confused with Nord AviationSS.10 anti-tank missile.
Intercontinental ballistic missile
UR-200
SS-10 Scrag
TypeIntercontinental ballistic missile
Place of originSoviet Union
Service history
In service1963-1964
Production history
DesignerOKB-52
Designed1962
Specifications (8K81[3])
Mass135,710 kg (299,190 lb)
Height34.65 m (113.7 ft)
Diameter3 m (9.8 ft)
Wingspan4.2 m (14 ft)
WarheadNuclear warhead

EngineFirst stage,RD-0202 liquid-fuel rocket
Second stage,RD-0205 liquid-fuel rocket
First stage, 2,236 kN (503,000 lbf)[1]
Second stage, 606.4 kN (136,300 lbf)[2]
PropellantN2O4 /UDMH
Operational
range
12,000 kilometres (7,500 mi)
Flight ceiling185 km (115 mi)apogee
Maximum speedMach 20 (24,500 km/h; 15,200 mph; 6.81 km/s)
Guidance
system
Inertial

TheUR-200 was anintercontinental ballistic missile (ICBM) developed byVladimir Chelomey'sOKB-52 in theSoviet Union. It was known during theCold War by theNATO reporting nameSS-10Scrag and internally by theGRAU index8K81. The design was authorized by the Decisions of the Central Committee of the CPSU of March 16 and August 1, 1961, and the draft project was finished in July[clarification needed] 1962. It first flew on November 4, 1963, from theBaikonur Cosmodrome. The ninth and final flight was conducted on October 20, 1964.

Description

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TheUR-200 was a two-stage liquid-propellant universalICBM for delivery of replaceable[clarification needed] payloads to the range up to 12000 km, launch of interceptor satellites for space defense, naval recon satellites, andorbital maneuvering warheads. It was capable of carrying around 3,175 kilograms (7,000 lb) of payload, and could be launched from flat pads, or missile silos built for theR-16 missile. Unusually for a Soviet missile, the first stage provided attitude control by means ofthrust vectoring.Nitrogen tetroxide andUDMH were used as propellants.

FOBS

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Main article:Fractional Orbital Bombardment System

The FOBS, orFractional Orbital Bombardment System, was a Soviet programme to place a nuclear warhead into a 150 kmlow Earth orbit, in order to allow the warhead to approach the enemy from any direction, below missile tracking radar systems. The UR-200 was one of several rockets proposed for this purpose, along with the8K713 andR-36. The use of the UR-200 for FOBS deployment was cancelled in October 1964, whenNikita Khrushchev was removed from power.

Operational history

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The UR-200 was never deployed operationally. The successful development of the storable hypergolic-fuelledR-36 silo-launched missile led to the cancellation of the UR-200 in 1965.

Operators

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Related developments

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See also

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References

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  1. ^RD-0202.Encyclopedia Astronautica. Accessed 2014-09-28.
  2. ^RD-0205.Encyclopedia Astronautica. Accessed 2014-09-28.
  3. ^UR-200.Encyclopedia Astronautica. Accessed 2014-09-28.
Variants
Main series
UR-100 family
UR-500 family
Launch sites
Baikonur
Plesetsk
Launches
Air-to-air
(full list)
Air-
to-surface

(full list)
Anti-tank
guided

(full list)
Surface-
to-air

(full list)
Ground-
based
Naval-
based
Anti-
ballistic
Surface-
to-surface

(full list)
Ground-
based
Naval-
based
Ship-
to-ship
Russian and former Soviet military designation sequences for radar, missile and rocket systems
Radar
systems
Land-based
Ship-borne
Airborne
Missiles
ICBM
IRBM
MRBM
SRBM
SLBM
Surface-to-surface
(cruise)
Surface-to-surface
(naval)
Surface-to-air
Air-to-surface
Air-to-air
Anti-tank
Unguided
rockets
Air-launched
Rocket artillery
Engines


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