Thor Delta C1
Thor family
· built by McDonnell Douglas
· maiden flight 1966-05-25
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17
American orbital launch vehicle family with Thor first stage and a delta second stage.
Specifications
27.5 mLength
2.44 mDiameter
52 tLaunch mass
3Stages
756 kNLiftoff thrust
Payload Capacity
81 kgTo LEO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
3Total launches
3Successful
0Failed
0Upcoming
Launches Tracked on This Site
3In our archive
100.0%Success rate
May 25, 1966 14:00 UTCEarliest tracked
Jan 22, 1969 16:48 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Delta C1 | OSO 5 | Jan 22, 1969 16:48 UTC | Success |
| Thor Delta C1 | OSO 4 | Oct 18, 1967 15:58 UTC | Success |
| Thor Delta C1 | Explorer 32 | May 25, 1966 14:00 UTC | Success |