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 | Vostok 8A92M RKK Energiya × remove | Space Shuttle National Aeronautics and Space Administration × remove |
|---|---|---|---|---|
| Flights | 7 | 299 | 93 | 135 |
| Success rate | 57.1% | 95.7% | 98.9% | 98.5% |
| Thrust | 736 kN | — | 3,996 kN | 28,200 kN |
| Height | 29.6 m | — | 30.84 m | 56.1 m |
| Diameter | 1.82 m | — | 2.99 m | 8 m |
| Launch mass | 54 t | — | 282 t | 2,030 t |
| LEO capacity | 1,000 kg | — | 3,800 kg | 27,500 kg |
| GTO capacity | — | — | — | — |
| Launch cost | $15M | — | — | $450M |
| Reusable | No | No | No | Yes |
| Stages | 2 | — | 2 | 2 |