Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Soyuz-U2 Soviet Space Program × remove | Kosmos 11K63 Strategic Rocket Forces × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove |
|---|---|---|---|
| Flights | 71 | 126 | 110 |
| Success rate | 100% | 93.7% | 93.6% |
| Thrust | — | — | — |
| Height | 34.54 m | 31 m | — |
| Diameter | 2.95 m | 1.6 m | — |
| Launch mass | 298 t | 48 t | — |
| LEO capacity | 7,050 kg | 300 kg | — |
| GTO capacity | — | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 2 | 2 | — |