Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Delta II 7320 United Launch Alliance × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove | Voskhod Soviet Space Program × remove |
|---|---|---|---|
| Flights | 6 | 110 | 299 |
| Success rate | 100% | 93.6% | 95.7% |
| Thrust | — | — | — |
| Height | 38.9 m | — | — |
| Diameter | 2.44 m | — | — |
| Launch mass | 168 t | — | — |
| LEO capacity | 2,800 kg | — | — |
| GTO capacity | — | — | — |
| Launch cost | $51M | — | — |
| Reusable | No | No | No |
| Stages | 2 | — | — |