Thor Delta L
Thor family
· built by McDonnell Douglas
· maiden flight 1969-08-27
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
35.0 mLength
2.44 mDiameter
89 tLaunch mass
4Stages
1452 kNLiftoff thrust
Payload Capacity
300 kgTo LEO
300 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
1Successful
1Failed
0Upcoming
Launches Tracked on This Site
2In our archive
50.0%Success rate
Aug 27, 1969 21:59 UTCEarliest tracked
Jan 31, 1972 17:20 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Delta L | HEOS 2 | Jan 31, 1972 17:20 UTC | Success |
| Thor Delta L | Pioneer E | Aug 27, 1969 21:59 UTC | Failure |