Initial Operational Capability (IOC):
21 August 1957
Also Known As: 8K71, 8K74, R-7A, R-7M and SS-6 Sapwood
Parent System: R-7
Initial Operational Capability (IOC): 1960
Maiden Flight: 21 August 1957
Total Production: ?
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Description: R-7, also known as the SS-6 Sapwood, was the first silo-based Intercontinental Ballistic Missile (ICBM) developed in the former Soviet Union. Its propulsion system is based on a two-stage layout with liquid propellant which allows a maximum range of 6,500 nautical miles (12,000+ kilometers) carrying a 5-megaton thermonuclear warhead. R-7A and R-7M were variants featuring increased range than early R-7s but with less payload ranging from 5.5-t for R-7 to 2.2 tons in the R-7M variant. R-7 model had a maximum range of 8,800 kilometers fitted out with a 5.5-ton payload.
Number of Stages: 2
Number of Warheads: 1
Diameter: 2.95 meter (116 inch)
Length: 33 meter (1,299 inch)
CEP: 5,000 meter
Max Range: 12,000 kilometer (6,479 nautical mile)
Warhead: 5,500 kilogram (12,125 pound)
Weight: 283 ton (623,898 pound)
Yield: 5,000 kiloton
CEP: Circular Error Probable
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
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on 28 Dec 2013
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