Global Rocket 1

The Global Rocket 1 (GR-1) was a Fractional Orbital Bombardment System (FOBS) intercontinental ballistic missile (ICBM) developed but not deployed by the Soviet Union during the Cold War. The system also was given the NATO reporting name SS-X-10 Scrag, and carried a Soviet industry designation of 8K713.

Development

In 1961, faced with the prospect of development in the United States of an anti-ballistic missile (ABM) system to intercept conventional ICBMs, the Soviet Union began development of a fractional orbital bombardment system (FOBS) to defeat these interceptors. The concept was to include launching a missile into orbit (150 km), from where a warhead could be dropped to its targets in a non-ballistic manner, and without giving away its target until final descent. Three Soviet design centers developed proposals for the system, with OKB-1 (S. P. Korolev) proposing the Global Rocket 1.

The GR-1 was a liquid cryogenic propellant fuelled rocket which was intended to utilize the launch pads of the R-9 Desna which was being phased out of service. The project was cancelled in 1964 citing engine delays, a fate which became permanent for all of the FOBS designs with the signing of the Anti-Ballistic Missile Treaty which removed the need for such a weapon.

Operator

Soviet Union: The Soviets cancelled the GR-1 before it entered operational service with the Strategic Rocket Forces.

ICBM	GR-1 R-2 R-7 R-9 R-12 R-13 R-16 RS-16 RS-24 RS-26 RSS-40 R-26 R-36 R-36M R-46 RT-2 RT-2PM RT-2PM2 RT-20 RT-21 RT-23 Sarmat UR-100 UR-100MR UR-100N UR-200

Tactical Surface to Surface	9K720 R-1 R-2 R-5 R-11 R-11A R-12 R-14 RT-15 R-17 RT-23 RT-25 TR-1 OTR-21 OTR-23 P-1000

Sub-surface to Surface	P-5 P-20M/P-70 R-15 R-17 R-21 R-27 R-29 R-39 R-81 RSM-56

Surface to Surface (Naval)	P-1 P-15 P-120 P-270 P-500K P-500B P-700 P-750 P-800

Air to surface	KSR-5 RKV-500A / RK-55 KS-1 K-10S Kh-11 Kh-15 Kh-20 Kh-22 Kh-23 Kh-25 Kh-25MP Kh-26 Kh-28 Kh-29 Kh-31 Kh-35 Kh-58 Kh-55 Kh-59 Kh-59M Kh-90 P-750 9M114V 3M25A

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

Anti-Tank	R-103

Unguided Rockets

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

Surface launched rockets

Engines

RD-8
RD-9
R-11
R-13
R-15
R-25
R-29
RK-55
RD-33
RD-45
RD-58
RD-107
RD-117
RD-120
RD-124
RD-146
RD-170
RD-180
RD-191
RD-500

Global Rocket 1

Development

Operator

See also