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UR-100U
Part of UR-100 Family
Russian intercontinental ballistic missile. The UR-100U was a development of the UR-100K with improved shock isolation in the silo.

AKA: 15A20U;15P020;MRV;RS-10MUTTKh;Sego;SS-11 Mod.4. Status: Retired 1976. First Launch: 1971-01-01. Last Launch: 1976-01-01. Number: 20 . Payload: 1,208 kg (2,663 lb). Gross mass: 50,100 kg (110,400 lb). Height: 18.95 m (62.17 ft). Diameter: 2.00 m (6.50 ft). Span: 2.00 m (6.50 ft). Apogee: 1,000 km (600 mi).

A competition for an improved silo design was held in 1969 and won by Vladimir Baryshev's team at OKB-52 Filial 2. Tests began in this period of improved silo designs at the Semipalatinsk nuclear proving ground. These improvements included plastic shock absorbers to isolate the missile from blast, shielded command antennae, and 'cold absorbers' that could absorb the heat of nearby nuclear explosions. The resulting silo/container was the subject of 15 new patents and was considered by the Americans as the most blast-resistant in the world. Flight trials were conducted from 1 June 1971 to January 1973. The missile was accepted by the military on 26 September 1974 and finally retired in 1993. In service a regiment consisted of a control point and ten silos. By 1987 440 UR-100K and UR-100U's had been deployed to missiles fields at Kozelsk, Teikovo, Bershet, Gladkaya, Drovyanaya, Svobodniy, and Yasnaya. Of these a total of 120 were in silos re built to the new design. These were later filled with UR-100N and UR-100NU missiles before being retired in the 1990's.

Maximum range: 10,600 km (6,500 mi). Number Standard Warheads: 3. Standard RV: MRV. Warhead yield: 350 KT. CEP: 1.09 km (0.67 mi). Alternate warhead: 1,200 kg (2,600 lb). Maximum range with alternate warhead: 12,000 km (7,000 mi). Number Alternate Warheads: 1. Alternate warhead yield: 1,300 KT. Alternate warhead CEP: 1.09 km (0.67 mi). Boost Propulsion: Storable liquid rocket, N2O4/UDMH. Initial Operational Capability: 1972. Total Number Built: 220.



Family: ICBM. Country: Russia. Launch Sites: Baikonur. Stages: 8S816, 8S817. Agency: Chelomei bureau.

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1971 June 16 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • Phase 1 state trials flight - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1972 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • SLI missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1976 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).


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