UR-100

Also known as 8K84, SS-11 Sego, Sego

The UR-100 () was an intercontinental ballistic missile (ICBM) developed and deployed by the Soviet Union from 1966 to 1996. UR () in its designation stood for 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 Strela and Rokot carrier rockets were based on it.

Key facts

Weapon.is_missile: yes
Weapon.name: UR-100SS-11 Sego
Weapon.image: 15A20 - RS-10 - SS-11 mod.2 Sego ICBM in 15Ya42 transport launching container at Park Patriot 02.jpg
Weapon.type: ICBM
Weapon.vehicle_range: 10,600 km
Weapon.filling: 1
Weapon.yield: 1 Mt by NII-1011, Chelyabinsk-70
Weapon.engine: two-stage liquid fuel first stage 8S816 with a 15D2 module (three RD-0216 and one RD-0217 engines) second stage 8S817 with one 15D13 main and one four-nozzle 15D14 (RK-3) engines)
Weapon.guidance: inertial
Weapon.accuracy: 1000–1400 metres CEP
Weapon.length: 16,930 mm
Weapon.diameter: 2,000 mm
Weapon.weight: 41.4-42.3 tonnes
Weapon.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"
Weapon.service: 21 July 1967 (document №705-235)–1974
Weapon.used_by: Soviet Union