Engineering:UR-100
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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).
Description
Variants and developments
- UR-100N UTTH with 15A35 missile — improved UR-100N (The "UTTH" (or "UTTKh") abbreviated suffix is often used in missile names. This means literally "improved tactical and technical characteristics", Russian: УТТХ = улучшенные тактико-технические характеристики)

Operational history
Soviet Union: The UR-100 reached initial operational capability with the Strategic Rocket Forces in 1966, and by 1972, 990 launchers had been deployed. An additional 420 launchers of newer version missiles were added by 1976. The missile was deployed as a counterpart to the United States' LGM-30 Minuteman, and relied on numbers for effectiveness. Original versions were phased out during the 1970s, but 326 of the newer missiles (8K84M, UR-100N, UR-100NUTTH) remained in service by 1991. These were phased out completely by 1996. Strategic Rocket Forces was the only operator of the UR-100. Formations included:
- 4th Rocket Division (Drovyanaya, Chita Oblast) (53rd Rocket Army)
Some maintenance, storage, and issuing was carried out by the 29th Arsenal at Balezino-3, Udmurtiya.[1]
As a space launcher
The Strela and Rokot carrier rockets are based on the UR-100.[2]
See also
References
External links
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- 8K84 (in Russian)
