Delta (rocket family)
The Delta rocket family was a versatile range of American rocket-powered expendable launch systems that provided space launch capability in the United States from 1960 to 2024. Japan also launched license-built derivatives (N-I, N-II, and H-I) from 1975 to 1992. More than 300 Delta rockets were launched with a 95% success rate. The series was phased out in favor of the Vulcan Centaur, with the Delta IV Heavy rocket's last launch occurring on April 9, 2024.
| Delta Family | |
|---|---|
| Delta II through Delta IV | |
| Role | Expendable launch system with various applications |
| Manufacturer | United Launch Alliance |
| First flight | May 13, 1960 |
| Introduction | 1960 |
| Retired | 2024 |
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