Encyclopedia Astronautica
UR-100NU


Russian intercontinental ballistic missile. Development of an improved version of the UR-100N was authorised on 16 April 1976 (UR-100NU; U = UTTKh = 'Improved Technical-Tactical Characteristics). Viktor Bugaisk at TsKBM headed the engineering team. The UR-100NU was to have a new warhead dispenser bus and improved guidance system by Vladimir Sergeyev of NII-692. The new system allowed up to six pre-programmed targets to be entered, any one of which could be selected at launch. This allowed deployment of better countermeasures and a considerable improvement in accuracy.

A total of 68 test flights were conducted from 28 September 1977 to 26 July 1979. The missile was accepted for service on 17 December 1980. The first regiment was activated at Khmelnitskiy on 6 November 1979 and became operational in January 1981. By 1984 the UR-100NU had been placed in a total of 360 silos at Kozelsk (70), Pervomaisk (90), Khmelnitskiy (90) and Tatishchevo (110). Eventually all 360 silos were converted to the 'superhardened' standard. Production of the missile itself ended at Khrunichev in 1985 and this was the last ICBM built by the factory.

The silos at Kozelsk and Tatishchevo had been fitted with the final UR-100 series missile modification in 1988-1990 (under the SALT-2 treaty the number of warheads per missile was reduced from six to one). Tatishchevo was also the site of several service and exercise field launches. The purpose of these was to verify the guidance software's ballistic solution when fired from launch sites and impact zones other than the standard Baikonur/Kamchatka range. By 1999 the UR-100NU had been fired 81 times -- 27 trials launches, 25 operational exercises, and 29 for other purposes.

Surplus UR-100NU missiles were the subject of vigorous marketing as space launchers during the 1990's. Concepts promoted included:

  • Rokot, consisting of the UR-100NU plus a 'Briz' upper stage. This actually flew several times.
  • Okean, a sea-launched variant
  • Strela, using the basic UR-100NU as a space launcher
  • Prizyv, a global rapid rescue system proposed by NPO Mashinostroenniye and NIIMash. This envisioned SLA-1 and SLA-2 winged rescue flight vehicles to deliver supplies anywhere on earth within 15 to 180 minutes. The gliders would land 420 to 2500 kg of supplies anywhere on the planet to within 20 to 30 m of the aim point. This looked very much like a civilian version of Chelomei's 'Raketoplan' concept of the 1960's, focussed on attack on the US fleet. Perhaps it had remained on back-burner development all those years…

Failures: 3. Success Rate: 96.20%. First Fail Date: 1983-09-02. Last Fail Date: 1992-12-01. Standard warhead: 4,350 kg (9,590 lb). Maximum range: 10,000 km (6,000 mi). Number Standard Warheads: 6. Warhead yield: 550 KT. CEP: 0.31 km (0.19 mi). Boost Propulsion: Storable liquid rocket. Initial Operational Capability: 1980.

AKA: RS-18B; UR-100NU 15A35; UR-100NU; SS-19 Mod 3; 15A35; UR-100NUTTKh; Stilleto; 15P035.
Status: Active.
Gross mass: 105,600 kg (232,800 lb).
Payload: 4,350 kg (9,590 lb).
Height: 24.30 m (79.70 ft).
Diameter: 2.50 m (8.20 ft).
Span: 2.50 m (8.20 ft).
Thrust: 1,870.00 kN (420,390 lbf).
Apogee: 1,000 km (600 mi).
First Launch: 1977.09.28.
Last Launch: 2007.10.29.
Number: 79 .

More... - Chronology...


Associated Countries
See also
  • UR-100N The UR-100N was designed as a replacement for the UR-100 at the end of its ten year storage life. Although it could be installed in the same silos, it was 50% heavier. The competing design of Yangel, the MR-UR-100, was also put into production when the Soviet hierarchy deadlocked and could not pick one design over the other. More...
  • missile Guided self-propelled military weapon (as opposed to rocket, an unguided self-propelled weapon). More...

Associated Manufacturers and Agencies
  • Chelomei Russian manufacturer of rockets, spacecraft, and rocket engines. Chelomei Design Bureau, Reutov, Russia. More...

Associated Launch Sites
  • Baikonur Russia's largest cosmodrome, the only one used for manned launches and with facilities for the larger Proton, N1, and Energia launch vehicles. The spaceport ended up on foreign soil after the break-up of Soviet Union. The official designations NIIP-5 and GIK-5 are used in official Soviet histories. It was also universally referred to as Tyuratam by both Soviet military staff and engineers, and the US intelligence agencies. Since the dissolution of the Soviet Union the Russian Federation has insisted on continued use of the old Soviet 'public' name of Baikonur. In its Kazakh (Kazak) version this is rendered Baykonur. More...
  • Tatishchevo Headquarters of an RVSN Division, 1964-present. Base for units deployed with 110 light ICBM silos (UR-100/UR-100N) and later ten RT-23 mobile ICBM launchers. A single live launch was known to have been made from here in 1987, reaching 1000 km altitude. More...

Associated Stages
  • UR-100N MIRV Bus N2O4/UDMH propellant rocket stage. Loaded/empty mass 1,100/725 kg. Thrust 4.90 kN. Vacuum specific impulse 200 seconds. More...
  • UR-100N Stage 1N N2O4/UDMH propellant rocket stage. Loaded/empty mass 77,150/5,695 kg. Thrust 1,778.66 kN. Vacuum specific impulse 310 seconds. More...
  • UR-100N Stage 2N N2O4/UDMH propellant rocket stage. Loaded/empty mass 12,195/1,485 kg. Thrust 214.27 kN. Vacuum specific impulse 322 seconds. Engine has one main engine and four verniers. Verniers continue to burn for 19 seconds after mainstage shutoff. More...

UR-100NU Chronology


1977 September 28 - . LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • First UR-100NU launch. - . Nation: USSR.

1977 October 26 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1977 December 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1979 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1980 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1980 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1980 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1981 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1982 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1982 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1982 June 18 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Combat training launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1982 June 18 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1983 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1983 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1983 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1983 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1983 September 2 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU. FAILURE: Failure.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 0 km ( mi).

1984 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1984 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1984 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1984 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1985 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1986 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • State trials missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1986 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • State trials missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1986 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • State trials missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1987 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • UBP - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1987 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Combat training launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1987 February 12 - . Launch Site: Tatishchevo. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Trajectory Test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1987 June 5 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU. FAILURE: Failure.
  • Combat training launch - . Nation: USSR. Agency: RVSN. Apogee: 0 km ( mi).

1988 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Combat training launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1990 February 28 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1991 August 15 - . 12:05 GMT - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1992 December 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU. FAILURE: Failure.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km ( mi).

1993 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1994 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1995 June 8 - . 12:45 GMT - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1996 June 6 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1997 June 9 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1998 October 7 - . 12:00 GMT - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1998 December 10 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1999 October 20 - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. Launch Pad: LC175/pad?. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2000 November 1 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. LV Family: UR-100N. Launch Vehicle: UR-100NU. LV Configuration: UR-100NU 15A35 87.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2001 June 27 - . 04:35 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC132. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • OT (KGCh-2?) operational test launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2001 October 26 - . 12:33 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. Launch Pad: LC175/pad?. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2002 December 10 - . 05:15 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC132. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • OT 6RVs operational test launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi). Summary: Suborbital ICBM test with dummy warhead. Test delayed from November 1, December 5..

2004 February 18 - . 09:00 GMT - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi). Summary: Launched during a nationwide military exercise..

2004 August 11 - . 10:25 GMT - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2005 October 20 - . 07:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. Launch Pad: LC175/pad?. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • OT Kura - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

2006 November 9 - . 11:35 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. Launch Pad: LC175/pad?. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational missile test - . Nation: Kazakhstan. Agency: RVSN. Apogee: 1,000 km (600 mi).

2007 October 29 - . 09:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC175/2. Launch Pad: LC175/pad?. LV Family: UR-100N. Launch Vehicle: UR-100NU.
  • Operational test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

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