Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Delta II 6925 McDonnell Douglas × remove | Molniya-M 2BL Russian Space Forces × remove | Kosmos 11K63 Strategic Rocket Forces × remove |
|---|---|---|---|
| Flights | 13 | 272 | 126 |
| Success rate | 100% | 95.2% | 93.7% |
| Thrust | 3,981 kN | — | — |
| Height | 38.1 m | — | 31 m |
| Diameter | 2.44 m | — | 1.6 m |
| Launch mass | 218 t | — | 48 t |
| LEO capacity | 3,981 kg | — | 300 kg |
| GTO capacity | 1,446 kg | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 4 | — | 2 |