Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Vulcan VC4S United Launch Alliance × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove | Vostok 8A92M RKK Energiya × remove |
|---|---|---|---|
| Flights | 2 | 110 | 93 |
| Success rate | 100% | 93.6% | 98.9% |
| Thrust | — | — | 3,996 kN |
| Height | — | — | 30.84 m |
| Diameter | — | — | 2.99 m |
| Launch mass | — | — | 282 t |
| LEO capacity | — | — | 3,800 kg |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | — | — | 2 |