Compare rockets
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| Specification | Conestoga 1620 Space Services Inc. × remove | Kosmos 11K63 Strategic Rocket Forces × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|
| Flights | 1 | 126 | 714 |
| Success rate | 0% | 93.7% | 97.2% |
| Thrust | — | — | — |
| Height | — | 31 m | 51.1 m |
| Diameter | — | 1.6 m | 2.95 m |
| Launch mass | — | 48 t | 313 t |
| LEO capacity | 1,179 kg | 300 kg | 6,900 kg |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 4 | 2 | 3 |