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Soviet ICBM From Wikipedia, the free encyclopedia
The UR-100 (Russian: УР-100) was an intercontinental ballistic missile (ICBM) developed and deployed by the Soviet Union from 1966 to 1996. UR (УР) in its designation stood for Universal Rocket (Russian: Универсальная Ракета). It was known during the Cold War by the NATO reporting name SS-11 Sego and internally by the GRAU index 8K84. The Strela and Rokot carrier rockets were based on it.
This November 2022 needs additional citations for verification. (November 2022) |
UR-100 SS-11 Sego | |
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![]() | |
Type | ICBM |
Service history | |
In service | 21 July 1967 (document №705-235)–1974 |
Used by | Soviet Union |
Production history | |
Manufacturer | design by OKB-52 of V.N.Chelomey, production by Khrunichev Machine-Building Plant, Omsk aviation facility №166 "Polyot", Orenburg aviation facility №47 "Strela" |
Specifications | |
Mass | 41.4-42.3 tonnes |
Length | 16,930 mm |
Diameter | 2,000 mm |
Warhead | 1 |
Blast yield | 1 Mt by NII-1011, Chelyabinsk-70 |
Engine | two-stage liquid fuel |
Operational range | 10,600 km |
Guidance system | inertial |
Accuracy | 1000–1400 metres CEP |
The similar designation UR-100MR (Russian: УР-100МР) actually refers to an entirely different missile, the MR-UR-100 Sotka (SS-17 Spanker).
The UR-100 was a two-stage liquid-propellant lightweight ICBM. Initial versions carried a single warhead of 0.5 to 1.1 Mt yield, while later versions could carry three or six MIRV warheads. The missile was silo-launched. 15P784 silo design (by KBOM, Design Bureau of Common Machinery, of V.P.Barmin) was greatly simplified in comparison to earlier missiles. Facilities consisted of hardened, unstaffed silos controlled by a single central command post. This was the first soviet ICBM (8K84M, entered service on 3 October 1971) equipped with missile defense countermeasure "Palma" by NII-108 of V.Gerasimenko.[citation needed]
Formations included:
The Strela and Rokot carrier rockets are based on the UR-100.[citation needed]
![]() | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (December 2014) |
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