Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Firefly Alpha Firefly Aerospace × remove | Kosmos 11K63 Strategic Rocket Forces × remove | Tsiklon-2 Yuzhnoye Design Bureau × remove |
|---|---|---|---|
| Flights | 7 | 126 | 105 |
| Success rate | 57.1% | 93.7% | 98.1% |
| Thrust | 736 kN | — | 2,366 kN |
| Height | 29.6 m | 31 m | 39.7 m |
| Diameter | 1.82 m | 1.6 m | 3 m |
| Launch mass | 54 t | 48 t | 182 t |
| LEO capacity | 1,000 kg | 300 kg | 2,820 kg |
| GTO capacity | — | — | — |
| Launch cost | $15M | — | $12M |
| Reusable | No | No | No |
| Stages | 2 | 2 | 3 |