Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Proton-K/17S40 Khrunichev State Research and Production Space Center × remove | Tsiklon-2 Yuzhnoye Design Bureau × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|
| Flights | 6 | 105 | 714 |
| Success rate | 100% | 98.1% | 97.2% |
| Thrust | 8,847 kN | 2,366 kN | — |
| Height | 59 m | 39.7 m | 51.1 m |
| Diameter | 4.15 m | 3 m | 2.95 m |
| Launch mass | 708 t | 182 t | 313 t |
| LEO capacity | 6,000 kg | 2,820 kg | 6,900 kg |
| GTO capacity | — | — | — |
| Launch cost | — | $12M | — |
| Reusable | No | No | No |
| Stages | 4 | 3 | 3 |