Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Firefly Alpha Firefly Aerospace × remove | Molniya-M 2BL Russian Space Forces × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|
| Flights | 7 | 272 | 714 |
| Success rate | 57.1% | 95.2% | 97.2% |
| Thrust | 736 kN | — | — |
| Height | 29.6 m | — | 51.1 m |
| Diameter | 1.82 m | — | 2.95 m |
| Launch mass | 54 t | — | 313 t |
| LEO capacity | 1,000 kg | — | 6,900 kg |
| GTO capacity | — | — | — |
| Launch cost | $15M | — | — |
| Reusable | No | No | No |
| Stages | 2 | — | 3 |