Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Project Pilot US Navy × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove |
|---|---|---|---|
| Flights | 6 | 110 | 714 |
| Success rate | 0% | 93.6% | 97.2% |
| Thrust | 125 kN | — | — |
| Height | 4.4 m | — | 51.1 m |
| Diameter | 0.76 m | — | 2.95 m |
| Launch mass | 0 t | — | 313 t |
| LEO capacity | 1 kg | — | 6,900 kg |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 5 | — | 3 |