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 | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Molniya-M 2BL Russian Space Forces × remove |
|---|---|---|---|
| Flights | 6 | 714 | 272 |
| Success rate | 100% | 97.2% | 95.2% |
| Thrust | 8,847 kN | — | — |
| Height | 59 m | 51.1 m | — |
| Diameter | 4.15 m | 2.95 m | — |
| Launch mass | 708 t | 313 t | — |
| LEO capacity | 6,000 kg | 6,900 kg | — |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 4 | 3 | — |