Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Safir Iranian Space Agency × remove | Space Shuttle National Aeronautics and Space Administration × remove | Tsiklon-2 Yuzhnoye Design Bureau × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|---|
| Flights | 5 | 135 | 105 | 714 |
| Success rate | 80% | 98.5% | 98.1% | 97.2% |
| Thrust | 255 kN | 28,200 kN | 2,366 kN | — |
| Height | 22 m | 56.1 m | 39.7 m | 51.1 m |
| Diameter | 1.25 m | 8 m | 3 m | 2.95 m |
| Launch mass | 26 t | 2,030 t | 182 t | 313 t |
| LEO capacity | 0 kg | 27,500 kg | 2,820 kg | 6,900 kg |
| GTO capacity | 0 kg | — | — | — |
| Launch cost | — | $450M | $12M | — |
| Reusable | No | Yes | No | No |
| Stages | 2 | 2 | 3 | 3 |