RT-21 Temp 2S

RT-21 Temp 2S
SS-16 Sinner
RT-21 Temp 2S; SS-16 Sinner
Type	Intercontinental ballistic missile
Service history
In service	1976-1986
Used by	USSR
Production history
Designer	Alexander Nadiradze (Moscow Institute of Thermal Technology)
Manufacturer	Votkinsk Machine Building Plant
Specifications
Mass	43,000 kg
Length	18,500 mm
Diameter	1,790 mm
Warhead	Single 0.65-1.5 Mt warhead
Engine	Three stage, solid-propellant
Operational; range	10,500 km
Guidance; system	Inertial
Accuracy	450-1640 m CEP
Launch; platform	Mobile launcher vehicle

The RT-21 Temp 2S (Russian: Темп-2С, lit. 'pace') was a mobile intercontinental ballistic missile developed by the Soviet Union during the Cold War. It was assigned the NATO reporting name SS-16 Sinner and carried the industry designation 15Zh42 (15Ж42).

The RT-21 was the first mobile ICBM developed in the world.^{[citation needed]} Its innovative concept and design were created by Alexander Nadiradze. The RSD-10 Pioneer and succeeding missile complexes relied on the RT-21 base concept and were used by Nadiradze for many of his later projects. The program became mired in a series of treaty complications, including questions regarding its use of theatre missile launchers. It is unlikely that the RT-21 ultimately reached deployment, and by the mid-1980s, the program had been scrapped. Its maximum period of storage on a launcher was 5 years, and preparation time for launch was 40 minutes.^[1]