Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Safir Iranian Space Agency × remove | Voskhod Soviet Space Program × remove | Vostok 8A92M RKK Energiya × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|---|
| Flights | 5 | 299 | 93 | 714 |
| Success rate | 80% | 95.7% | 98.9% | 97.2% |
| Thrust | 255 kN | — | 3,996 kN | — |
| Height | 22 m | — | 30.84 m | 51.1 m |
| Diameter | 1.25 m | — | 2.99 m | 2.95 m |
| Launch mass | 26 t | — | 282 t | 313 t |
| LEO capacity | 0 kg | — | 3,800 kg | 6,900 kg |
| GTO capacity | 0 kg | — | — | — |
| Launch cost | — | — | — | — |
| Reusable | No | No | No | No |
| Stages | 2 | — | 2 | 3 |