Thor Delta D
Thor family
· built by McDonnell Douglas
· maiden flight 1964-08-19
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-18
American orbital launch vehicle family with Thor first stage and a delta second stage.
Specifications
32.0 mLength
2.44 mDiameter
63 tLaunch mass
4Stages
1571 kNLiftoff thrust
Payload Capacity
450 kgTo LEO
104 kgTo GTO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
2Total launches
2Successful
0Failed
0Upcoming
Launches Tracked on This Site
2In our archive
100.0%Success rate
Aug 19, 1964 12:15 UTCEarliest tracked
Apr 06, 1965 23:47 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Delta D | Early Bird | Apr 06, 1965 23:47 UTC | Success |
| Thor Delta D | Syncom 3 | Aug 19, 1964 12:15 UTC | Success |