Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Thor Delta E1 McDonnell Douglas × remove | Kosmos-3M (11K65M) Russian Space Forces × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|
| Flights | 17 | 445 | 714 |
| Success rate | 94.1% | 95.1% | 97.2% |
| Thrust | 1,450 kN | — | — |
| Height | 28 m | — | 51.1 m |
| Diameter | 2.44 m | — | 2.95 m |
| Launch mass | 68 t | — | 313 t |
| LEO capacity | 540 kg | — | 6,900 kg |
| GTO capacity | 150 kg | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 4 | — | 3 |