Delta C
The Delta C, or Thor-Delta C was an American expendable launch system used for thirteen orbital launches between 1963 and 1969. It was a member of the Delta family of rockets.
Configuration
The first stage was a Thor missile in the DSV-2A configuration, and the second stage was the Delta D, which was derived from the earlier Delta. The baseline Delta C used an Altair-2 third stage, whilst the Delta C1 had an FW-4D third stage, which provided a higher payload capacity than the Altair. It is unclear whether two or three launches were made using the C1 configuration.Launches
The Delta C was launched from Cape Canaveral Launch Complex 17. Most launches carried NASA research satellites into low Earth orbit.| Variant | S/N | Date | Launch Site | Payload | Result |
| Delta C | 387/D-21 | 27.11.1963 | CC LC-17B | Explorer 18 | Success |
| Delta C | 392/D-26 | 04.10.1964 | CC LC-17A | Explorer 21 | Success |
| Delta C | 393/D-27 | 21.12.1964 | CC LC-17A | Explorer 26 | Success |
| Delta C | 374/D-28 | 22.01.1965 | CC LC-17A | TIROS 9 | Success |
| Delta C | 411/D-29 | 03.02.1965 | CC LC-17B | OSO 2 | Success |
| Delta C | 441/D-31 | 29.05.1965 | CC LC-17B | Explorer 28 | Success |
| Delta C | 415/D-32 | 02.07.1965 | CC LC-17B | TIROS 10 | Success |
| Delta C | 434/D-33 | 25.08.1965 | CC LC-17B | OSO C | Failure |
| Delta C | 445/D-36 | 03.02.1966 | CC LC-17A | ESSA 1 | Success |
| Delta C | 431/D-46 | 08.03.1967 | CC LC-17A | OSO 3 | Success |
| Delta C | 490/D-53 | 18.10.1967 | CC LC-17B | OSO 4 | Success |
| Delta C1 | 436/D-38 | 25.05.1966 | CC LC-17B | Explorer 32 | Success |
| Delta C1 | 487/D-64 | 22.01.1969 | CC LC-17B | OSO 5 | Success |