Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Scout X-4 Vought × remove | Kosmos 11K63 Strategic Rocket Forces × remove | Molniya-M 2BL Russian Space Forces × remove |
|---|---|---|---|
| Flights | 12 | 126 | 272 |
| Success rate | 91.7% | 93.7% | 95.2% |
| Thrust | 513 kN | — | — |
| Height | 25 m | 31 m | — |
| Diameter | 1.01 m | 1.6 m | — |
| Launch mass | 17 t | 48 t | — |
| LEO capacity | 103 kg | 300 kg | — |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 4 | 2 | — |