Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Project Pilot US Navy × remove | Voskhod Soviet Space Program × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Vostok 8A92M RKK Energiya × remove |
|---|---|---|---|---|
| Flights | 6 | 299 | 714 | 93 |
| Success rate | 0% | 95.7% | 97.2% | 98.9% |
| Thrust | 125 kN | — | — | 3,996 kN |
| Height | 4.4 m | — | 51.1 m | 30.84 m |
| Diameter | 0.76 m | — | 2.95 m | 2.99 m |
| Launch mass | 0 t | — | 313 t | 282 t |
| LEO capacity | 1 kg | — | 6,900 kg | 3,800 kg |
| GTO capacity | — | — | — | — |
| Launch cost | — | — | — | — |
| Reusable | No | No | No | No |
| Stages | 5 | — | 3 | 2 |