head to head
Delta II vs Soyuz U
Verdict
- Taller
- Soyuz U
- 38.9 m vs 51.1 m
- Flown more
- Soyuz U
- 36 vs 714
- Flew first
- Soyuz U
- 1990-11-26 vs 1973-05-18
Delta II
- Country / maker
- United Launch Alliance
- Height
- 38.9 m
- Diameter
- 2.4 m
- Launch mass
- 232 t
- LEO capacity
- —
- GTO capacity
- 1,840 kg
- Stages
- 3
- Maiden flight
- 1990-11-26
Soyuz U
- Country / maker
- Russian Federal Space Agency (ROSCOSMOS)
- Height
- 51.1 m
- Diameter
- 3.0 m
- Launch mass
- 313 t
- LEO capacity
- 6,900 kg
- GTO capacity
- —
- Stages
- 3
- Maiden flight
- 1973-05-18
Every number
| Field | Delta II | Soyuz U |
|---|---|---|
| Country / maker | United Launch Alliance | Russian Federal Space Agency (ROSCOSMOS) |
| Height | 38.9 m | 51.1 m |
| Diameter | 2.4 m | 3.0 m |
| Launch mass | 232 t | 313 t |
| LEO capacity | — | 6,900 kg |
| GTO capacity | 1,840 kg | — |
| Stages | 3 | 3 |
| Maiden flight | 1990-11-26 | 1973-05-18 |
| Launches | 36 | 714 |
| Success rate | 94.4% | 97.2% |
| Reusable | no | no |
| Status | retired | retired |