| 词条 | Vostok-2 (rocket) |
| 释义 |
|image = Vostok 8A92.svg |caption = Vostok-2 rocket |imsize = 85 |name = Vostok-2 |function = Carrier rocket |manufacturer = OKB-1 |country-origin = USSR |stages = Two |capacities = |location = LEO |kilos = {{convert|4730|kg}} |family = R-7 |derivatives = Vostok-2M |status = Retired |sites = Baikonur Site 1/5 & 31/6 Plesetsk Site 41/1 |launches = 45 |success = 40 |fail = 5 |first = 1 June 1962 |last = 12 May 1967 |payloads = Zenit |stagedata = |type = booster |number = 4 |engines = 1 RD-107-8D74K |thrust = {{convert|995.3|kN}} |burntime = 118 seconds |fuel = RP-1/LOX }} {{Infobox Rocket/Stage|type = stage |stageno = First |engines = 1 RD-108-8D75K |thrust = {{convert|940|kN}} |burntime = 301 seconds |fuel = RP-1/LOX }} {{Infobox Rocket/Stage|type = stage |stageno = Second |engines = 1 RD-0109 |thrust = 54.5 kN |burntime = 365 seconds |fuel = RP-1/LOX }} The Vostok-2 ({{lang-ru|Восток}} meaning "East"), GRAU index 8A92 was an expendable carrier rocket used by the Soviet Union between 1962 and 1967. Forty five were launched, of which five failed.[1] It was derived from the earlier Vostok-K, with uprated engines. It was a member of the Vostok family of rockets. The Vostok-2 made its maiden flight on 1 June 1962, from Site 1/5 at the Baikonur Cosmodrome. One of the booster engines failed 1.8 seconds after launch, and the rocket came down {{convert|300|m}} away from the pad. The resulting explosion damaged the launch complex, and necessitated delays to several other launches that had been scheduled from that complex, including Vostok 3 and Vostok 4.[1] Thirteen months later, on 10 July 1963, an almost identical failure occurred. The other three failures were caused by a second stage malfunction, a second stage guidance problem, and a problem with the first stage. The Vostok-2 was used exclusively to launch Zenit-2 reconnaissance satellites. Launches occurred from sites 1/5 and 31/6 at Baikonur, and Site 41/1 at Plesetsk. In 1967, it was retired in favour of the Voskhod. References1. ^1 {{cite web|url=http://www.astronautix.com/lvs/soyuz.htm|title=Soyuz|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=2009-04-15|deadurl=yes|archiveurl=https://www.webcitation.org/5mqiUXlX2?url=http://www.astronautix.com/lvs/soyuz.htm|archivedate=2010-01-17|df=}} {{Russian launch vehicles}}{{Expendable launch systems}}{{R-7 rockets}} 2 : Space launch vehicles of the Soviet Union|R-7 (rocket family) |
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