Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Soyuz 2.1b Fregat Progress Rocket Space Center × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Kosmos 11K63 Strategic Rocket Forces × remove |
|---|---|---|---|
| Flights | 25 | 714 | 126 |
| Success rate | 92% | 97.2% | 93.7% |
| Thrust | 4,150 kN | — | — |
| Height | 46.3 m | 51.1 m | 31 m |
| Diameter | 2.95 m | 2.95 m | 1.6 m |
| Launch mass | 312 t | 313 t | 48 t |
| LEO capacity | 8,200 kg | 6,900 kg | 300 kg |
| GTO capacity | 3,250 kg | — | — |
| Launch cost | $80M | — | — |
| Reusable | No | No | No |
| Stages | 4 | 3 | 2 |