Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Firefly Alpha Firefly Aerospace × remove | Voskhod Soviet Space Program × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Tsiklon-3 Yuzhnoye Design Bureau × remove |
|---|---|---|---|---|
| Flights | 7 | 299 | 714 | 122 |
| Success rate | 57.1% | 95.7% | 97.2% | 94.3% |
| Thrust | 736 kN | — | — | 2,713 kN |
| Height | 29.6 m | — | 51.1 m | 39.27 m |
| Diameter | 1.82 m | — | 2.95 m | 3 m |
| Launch mass | 54 t | — | 313 t | 189 t |
| LEO capacity | 1,000 kg | — | 6,900 kg | 4,100 kg |
| GTO capacity | — | — | — | — |
| Launch cost | $15M | — | — | $15M |
| Reusable | No | No | No | No |
| Stages | 2 | — | 3 | 3 |