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 "Sputnik" Space booster.
(Industry designation 8K71PS/8A91, Western designation SL-1 with first satellite, SL-2)
"Sputnik" Space booster was designed at Special Design Bureau #1 on the basis of ICBM R-7 under supervision of Designer General D. Kozlov. Production of the booster was conducted at factory #88 in Kaliningrad city and at "Progress" Plant in Kuibishev city. Engines were designed in Special Design Bureau #486 under supervision of Designer General V. Glushko. R-7 ICBM was re-designed with new aerodynamic shroud and payload. All together there were 4 launches, including 1 accident.
Specification.
Launch weight....................................................272,800 kg
Thrust................................................................398,000 kg
Length..................................................................29,167 m
Diameter of cluster....................................................10,3 m
Payload weight
Low Earth Orbit...........................................1,350 (1,500) kg
Propellant
All stages...................................................... Kerosene+O2
Stage 1........................................................ engine RD-107
Stage 2........................................................ engine RD-108
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