Two versions of the Sputnik were built, the Sputnik-PS (GRAU index 8K71PS), which was used to launchSputnik 1 and laterSputnik 2, and the Sputnik (8A91), which failed to launch a satellite in April 1958, and subsequently launchedSputnik 3 on 15 May 1958.[1]
A later member of theR-7 family, thePolyot, used the same configuration as the Sputnik rocket, but was constructed fromVoskhod components. Because of the similarity, the Polyot was sometimes known as the Sputnik 11A59.
TheSputnik 8A91 had more powerful 8D76 and 8D77 engines installed,[2] increasing its payload capacity, and allowing it to launch much heavier satellites thanSputnik 1 andSputnik 2. It was launched two times, in 1958.[3] The first launch, on 27 April, failed due to vibrations that unexpectedly occurred during the flight along thelongitudinal axis of the rocket. On 15 May, it successfully launchedSputnik 3.[4][5]
This template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future
Symbol† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)