Sputnik 8A91
The Sputnik rocket was an uncrewed orbital carrier rocket designed by Sergei Korolev in the Soviet Union, derived from the R-7 Semyorka ICBM. The Sputnik 8A91 had more powerful 8D76 and 8D77 engines installed, increasing its payload capacity, and allowing it to launch much heavier satellites than Sputnik 1 and Sputnik 2.
Missions: 2
Successes: 1
Partial Failures: 0
Failures: 1
Success Streak: 1
Success Rate: 50.0%