UR-100
| UR-100 SS-11 Sego |
|
|---|---|
 |
|
| 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 | |
| Weight | 41.4-42.3 tonnes |
| Length | 16.93 metres |
| Diameter | 2 m |
| Warhead | 1 |
| Blast yield | 1 Mt by NII-1011, Chelyabinsk-70 |
|
|
|
| Engine |
two-stage liquid fuel |
|
Operational
range |
10,600 km |
|
Guidance
system |
inertial |
two-stage liquid fuel
The UR-100 (Russian: УР-100) was an intercontinental ballistic missile (ICBM) developed and deployed by the Soviet Union from 1966 to 1996. УР in its designation stands for " Универсальная Ракета" (Universal Rocket). It was known during the Cold War by the NATO reporting name SS-11 Sego and internally by the GRAU index 8K84.
The similar designation UR-100MR 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, un-manned 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.
Formations included:
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