UR-100

UR-100 SS-11 Sego

Type	ICBM
Service history
In service	21 July 1967 (document №705-235)–1974
Used by	Soviet Union
Production history
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"
Specifications
Weight	41.4-42.3 tonnes
Length	16.93 metres
Diameter	2 m
Warhead	1
Blast yield	1 Mt by NII-1011, Chelyabinsk-70

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)
Operational range	10,600 km
Guidance system	inertial

The UR-100 (Russian: УР-100) was an intercontinental ballistic missile (ICBM) developed and deployed by the Soviet Union from 1966 to 1996. УР in its designation stands for " Универсальная Ракета" (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 similar designation UR-100MR actually refers to an entirely different missile, the MR-UR-100 Sotka (SS-17 Spanker).

Description

The UR-100 was a two-stage liquid-propellant lightweight ICBM. Initial versions carried a single warhead of 0.5 to 1.1 Mt yield, while later versions could carry three or six MIRV warheads. The missile was silo-launched. 15P784 silo design (by KBOM, Design Bureau of Common Machinery, of V.P.Barmin) was greatly simplified in comparison to earlier missiles. Facilities consisted of hardened, un-manned silos controlled by a single central command post. This was the first soviet ICBM (8K84M, entered service on 3 October 1971) equipped with missile defense countermeasure "Palma" by NII-108 of V.Gerasimenko.

Variants and developments

UR-100 with 8K84 missile — original development
UR-100 with 8K84M missile — improved variant
UR-100N with 15A30 missile — enlarged UR-100. This variant is the basis of the Rokot space launch system.
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 tactics and technical charactereistics", Russian: УТТХ = улучшенные тактико-технические характеристики)
UR-100MR 15P015 with 15A15 missile — a different missile to replace the original UR-100

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)

External links

8K84 (Russian)

Universal Rocket family

Variants

Main series	UR-100 UR-200 UR-500 UR-700 UR-900

UR-100 family	UR-100 UR-100N Rokot Strela

UR-500 family	UR-500 Proton Proton-K Proton-M

Launch sites

Baikonur	Site 81 Site 175 Site 200

Plesetsk	Site 133

Launches

List of Proton launches

See also: MR-UR-100

NATO designation for Russian and former Soviet Union missiles

Air-to-air missiles
(complete list)

Air-to-surface missiles
(complete list)

Anti-tank missiles
(complete list)

Surface-to-air missiles
(complete list)

Ground based	SA-1 Guild SA-2 Guideline SA-3 Goa SA-4 Ganef SA-5 Gammon SA-6 Gainful SA-7 Grail SA-8 Gecko SA-9 Gaskin SA-10 Grumble SA-11 Gadfly SA-12 Gladiator/Giant SA-13 Gopher SA-14 Gremlin SA-15 Gauntlet SA-16 Gimlet SA-17 Grizzly SA-18 Grouse SA-19 Grison SA-20 Gargoyle SA-21 Growler SA-22 Greyhound SA-23 Gladiator/Giant SA-24 Grinch SA-25 Morfey S-350E

Naval based	SA-N-1 Goa SA-N-2 Guideline SA-N-3 Goblet SA-N-4 Gecko SA-N-5 Grail SA-N-6 Grumble SA-N-7 Gadfly SA-N-8 Gremlin SA-N-9 Gauntlet SA-N-10 Grouse SA-N-11 Grison SA-N-12 Grizzly SA-N-14 Grouse SA-N-20 Gargoyle

ABMs	ABM-1 Galosh ABM-3/53T6 Gazelle S-500

Surface-to-surface missiles
(complete list)

Ground based	SS-1 Scunner/SS-1 Scud (Scud-A/-B/-C/-D) SS-2 Sibling SS-3 Shyster SS-4 Sandal SS-5 Skean SS-6 Sapwood SS-7 Saddler SS-8 Sasin SS-8B Sasin 2 SS-9 Scarp SS-10 Scrag SS-11 Sego SS-12 Scaleboard SS-X-13 Savage SS-13 Savage SS-14 Scamp/Scapegoat SS-15 Scrooge SS-16 Sinner SS-17 Spanker SS-18 Satan SS-19 Stiletto SS-20 Saber SS-21 Scarab SS-22 Scaleboard SS-23 Spider SS-24 Scalpel SS-25 Sickle SS-26 Stone SS-27 Sickle B SS-28 Saber 2 SS-29 Yars SS-X-30 Satan 2 SS-X-31 Rubezh SS-X-32Zh Barguzin

Naval based	SS-N-1 Scrubber SS-N-2 Styx SS-N-3c Shaddock SS-N-3a Shaddock 3b Sepal SS-N-4 Sark SS-N-5 Sark/Serb SS-N-6 Serb SS-N-7 Starbright SS-N-8 Sawfly SS-N-9 Siren SS-N-12 Sandbox SS-NX-13 SS-N-14 Silex SS-N-15 Starfish SS-N-16 Stallion SS-N-17 Snipe SS-N-18 Stingray SS-N-19 Shipwreck SS-NX-20 Sturgeon SS-N-21 Sampson SS-N-22 Sunburn SS-N-23 Skiff R29RM SS-N-23A Skiff SS-N-23B Skiff SS-NX-24 Scorpion SS-N-25 Switchblade SS-N-26 Strobile SS-N-27 Sizzler SS-N-30A 3M-14 SS-NX-28 SS-N-29 SS-N-32 SS-NX-30? SS-NX-34

Russian and former Soviet military designation sequences for radar, missile and rocket systems

Radar
systems

Land-based	A-100 P-3 P-8 P-10 P-12 P-14 P-15 P-18 P-19 P-20 P-30 P-35 P-37 P-40 P-70 P-80 P-100 Kabina 66 Kasta 2E RSN-225 Azov SNR-75 1S91 30N6 36D6 64N6 76N6 96L6E 9S15 9S19 9S32 Duga Dnestr Dnepr Daryal Dunay Volga Don 2N Voronezh Container

Ship-borne

Airborne	N001 N002 N005 N006 N007 N008 N010 N011 N012 N014 N019 N025 N035 N036

Missiles

ICBM	GR-1 R-7 R-9 R-16 R-26 R-36 R-36M R-46 RS-24 RS-26 RT-2 RT-2PM RT-2PM2 RT-20 RT-21 RT-23 RS-28 UR-100 UR-100MR UR-100N UR-200

IRBM	R-14 RSD-10

MRBM	R-5 R-12 RT-15 RT-25

SRBM	2K1 2K6 9K52 9K720 R-1 R-2 R-11 R-11A R-17 OTR-21 OTR-23 TR-1

SLBM	R-13 R-15 R-21 R-27 R-29 R-39 RSM-45 RSM-56

Surface-to-surface (cruise)	Burya RSS-40

Surface-to-surface (naval)	P-1 P-5 P-15 P-70 P-120 P-270 P-500 P-700 P-750 P-800 P-900 P-900A P-1000 RKV-500A RPK-2 RPK-6 RPK-7 URPK-3 URPK-4 URPK-5

Air-to-surface	KSR-2 KSR-5 KS-1 K-10S Kh-11 Kh-15 Kh-20 Kh-22 Kh-23 Kh-25 Kh-26 Kh-28 Kh-29 Kh-31 Kh-35 Kh-38 Kh-41 Kh-55 Kh-58 Kh-59 Kh-80 Kh-90 9M114V

Air-to-air	K-5 R-3 R-4 R-8 R-23 R-27 R-33 R-37 R-38 R-40 R-60 R-73 R-77 R-172

Anti-tank	3M6 9K111 9K112 9K114 9K115 9K115-2 9K121 9M14 9M15 9M17 9M113 9M117 9M119 9M120 9M123 9M133 Kornet-D Hermes

Unguided
rockets

Air-launched	RP-1 RP-5 RP-6 RP-9 RP-15 RP-21 RS-82 RS-132

Surface-launched	BM-14 BM-21 BM-24 BM-25 BM-27 BM-30 TOS-1

Engines

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UR-100

Description

Variants and developments

Operational history

See also

External links