Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Atlas IIIA Lockheed Martin × remove | Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove | Voskhod Soviet Space Program × remove |
|---|---|---|---|
| Flights | 2 | 714 | 299 |
| Success rate | 100% | 97.2% | 95.7% |
| Thrust | 4,149 kN | — | — |
| Height | 52.8 m | 51.1 m | — |
| Diameter | 3.05 m | 2.95 m | — |
| Launch mass | 214 t | 313 t | — |
| LEO capacity | 8,640 kg | 6,900 kg | — |
| GTO capacity | 4,055 kg | — | — |
| Launch cost | — | — | — |
| Reusable | No | No | No |
| Stages | 2 | 3 | — |