UR-100

UR-100
SS-11 Sego
TypeICBM
Service history
In service21 July 1967 (document №705-235)–1974
Used bySoviet Union
Production history
Manufacturerdesign by OKB-52 of V.N.Chelomey, production by Khrunichev Machine-Building Plant, Omsk aviation facility №166 "Polyot", Orenburg aviation facility №47 "Strela"
Specifications
Mass41.4-42.3 tonnes
Length16,930 mm
Diameter2,000 mm
Warhead1
Blast yield1 Mt by NII-1011, Chelyabinsk-70

Enginetwo-stage liquid fuel
  1. first stage 8S816 with a 15D2 module (three RD-0216 and one RD-0217 engines)
  2. second stage 8S817 with one 15D13 main and one four-nozzle 15D14 (RK-3) engines)
Operational
range
10,600 km
Guidance
system
inertial
Accuracy1000–1400 metres CEP

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.

The similar designation UR-100MR (Russian: УР-100МР) actually refers to an entirely different missile, the MR-UR-100 Sotka (SS-17 Spanker).