|
|family = R-7 |comparable = Vanguard Juno I |status = Retired |sites = LC-1/5, Baikonur |launches = 4 (2 8K71PS, 2 8A91) |success = 3 |fail = 1 (8A91) |first = 8K71PS: 4 October 1957 8A91: 27 April 1958 |last = 8K71PS: 3 November 1957 8A91: 15 May 1958 |payloads = Sputnik 1 Sputnik 2 Sputnik 3 |stagedata = }} The Sputnik rocket was an unmanned orbital carrier rocket designed by Sergey Korolyov, derived from the R-7 Semyorka ICBM. On 4 October 1957, it was used to perform the world's first satellite launch, placing ''Sputnik 1'' into a low Earth orbit. Two versions of the Sputnik were built, the Sputnik-PS (GRAU index 8K71PS), which was used to launch ''Sputnik 1'' and later ''Sputnik 2'', and the Sputnik (8A91), which failed to launch a satellite in April 1958, and subsequently launched ''3'' on 15 May 1958.〔 (Sputnik Rocket )〕 A later member of the R-7 family, the Polyot, used the same configuration as the Sputnik rocket, but was constructed from Voskhod components. Because of the similarity, the Polyot was sometimes known as the Sputnik 11A59. ==Specifications== *Stage number: 0 - Strap-on boosters; 4 x 8K71PS-0 * *Gross mass: 43.0 tons * *Empty mass: 3.400 tons * *Thrust (vac): 4 × 99,000 kgf = 396 Mgf (3.89 MN) * *Isp: 306 s (3,000 N·s/kg) * *Burn time: 120 s (2 min) * *Isp(sl): 250 s (2,450 N·s/kg) * *Diameter: * *Span: * *Length: * *Propellants: LOX/RP-1 * *Engines: 1 x RD-107-8D74PS per booster = 4 *Stage number: 1 - Core stage; 1 x 8K71PS-1 * *Gross mass: 94.0 tons * *Empty mass: 7.495 tons * *Thrust (vac): 99,000 kgf (970 kN) * *Isp: 308 s (3,020 N·s/kg) * *Burn time: 310 s (5 min 10 s) * *Isp(sl): 241 s (2,360 N·s/kg) * *Diameter: * *Span: * *Length: * *Propellants: Lox/RP-1 * *Engine: 1 x RD-108-8D75PS *Total mass: 267 tons (534,000 lb) *LEO payload: 500 kg *Total liftoff thrust: 3.89 MN 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sputnik (rocket)」の詳細全文を読む スポンサード リンク
|