Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Firefly Alpha Firefly Aerospace × remove | Tsiklon-3 Yuzhnoye Design Bureau × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove |
|---|---|---|---|
| Flights | 7 | 122 | 110 |
| Success rate | 57.1% | 94.3% | 93.6% |
| Thrust | 736 kN | 2,713 kN | — |
| Height | 29.6 m | 39.27 m | — |
| Diameter | 1.82 m | 3 m | — |
| Launch mass | 54 t | 189 t | — |
| LEO capacity | 1,000 kg | 4,100 kg | — |
| GTO capacity | — | — | — |
| Launch cost | $15M | $15M | — |
| Reusable | No | No | No |
| Stages | 2 | 3 | — |