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The Voskhod rocket ((ロシア語:Восход), ''"ascent"'', ''"dawn"'') was a derivative of the Soviet R-7 ICBM designed for the human spaceflight programme but later used for launching Zenit reconnaissance satellites. It consisted of the Molniya 8K78M third stage minus the Blok L. In 1966, all R-7 variants were equipped with the uprated core stage and strap-ons of the Soyuz 11A511. All 11A57s launched after 1965 were functionally an 11A511 without the Soyuz's payload shroud and launch escape system. Around 300 were flown from Baikonur and Plesetsk through 1976 (various payloads, but Zenith PHOTINT satellites were the most common). The newer 11A511U core had been introduced in 1973, but the existing stock of 11A57s took another three years to use up. ==Voskhod 11A57== *Stage Number: 0 - Strap-on boosters; 4 x Voskhod 11A57-0 * *Gross Mass: 43,400 kg * *Empty Mass: 3,800 kg. * *Thrust (vac): 4 x 995.4 kN = 3,981.5 kN * *Isp: 314 s (3.08 kN·s/kg) * *Burn time: 119 s * *Isp(sl): 257 s (2.52 kN·s/kg) * *Diameter: 2.68 m * *Span: 8 m * *Length: 19.00 m * *Propellants: Lox/Kerosene * *Engines: 4 x RD-107-8D74K *Stage Number: 1 - Core stage; 1 x Voskhod 11A57-1 * *Gross Mass: 100,500 kg * *Empty Mass: 6,800 kg * *Thrust (vac): 941.4 kN * *Isp: 315 s (3.09 kN·s/kg) * *Burn time: 301 s * *Isp(sl): 248 s (2.43 kN·s/kg) * *Diameter: 2.99 m * *Span: 2.60 m * *Length: 28.00 m * *Propellants: Lox/Kerosene * *Engine: 1 x RD-108-8D75K *Stage Number: 2 - Final Stage; 1 x Voskhod 11A57-2 * *Gross Mass: 24,300 kg * *Empty Mass: 2,000 kg * *Thrust (vac): 294.2 kN * *Isp: 330 s (3.24 kN·s/kg) * *Burn time: 240 s * *Diameter: 2.56 m * *Length: 2.84 m * *Propellants: Lox/Kerosene * *Engine: 1 x RD-0108 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「Voskhod (rocket)」の詳細全文を読む スポンサード リンク
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