Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Safir 1B Iranian Space Agency × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Voskhod Soviet Space Program × remove | Kosmos 11K63 Strategic Rocket Forces × remove |
|---|---|---|---|---|
| Flights | 3 | 714 | 299 | 126 |
| Success rate | 0% | 97.2% | 95.7% | 93.7% |
| Thrust | 255 kN | — | — | — |
| Height | 22 m | 51.1 m | — | 31 m |
| Diameter | 1.25 m | 2.95 m | — | 1.6 m |
| Launch mass | 26 t | 313 t | — | 48 t |
| LEO capacity | 0 kg | 6,900 kg | — | 300 kg |
| GTO capacity | 0 kg | — | — | — |
| Launch cost | — | — | — | — |
| Reusable | No | No | No | No |
| Stages | 2 | 3 | — | 2 |