Thor family
Thor Delta L
American orbital launch vehicle family with Thor first stage and a delta second stage.
Flights flown2
Success rate50%1/2
Payload to LEO300kg
Cost per kg to LEO$55,133$16.5M per launch
Maiden flight1969-08-27
Peak year19691 flight
Thor Delta L is built by McDonnell Douglas of the United States. It first flew on 27 August 1969 and last flew on 31 January 1972.
Flight record
50% success rate1 of 2 flown · 1 failed
1969peak 1969 · 1 flight1972
First flight1969-08-27
Latest flight1972-01-31
Failures1
Consecutive successes1
Fastest turnaround886d 19h
Payload
| Low Earth orbit | 300kg |
|---|---|
| Geostationary transfer orbit | 300kg |
| Launch cost | $16.5M |
| Cost per kg to LEO | $55,133 |
Vehicle
| Stages | 4 |
|---|---|
| Length | 35m |
| Diameter | 2.44m |
| Launch mass | 89t |
| Liftoff thrust | 1,452kN |
| Maiden flight | 1969-08-27 |
| Reusable | No |
Pads used
Orbits delivered
Elliptical Orbit1Heliocentric N/A1
Launch history
| Date | Mission | Pad | Orbit | Outcome |
|---|---|---|---|---|
| 1972-01-31 | Thor Delta L | HEOS 2 | Space Launch Complex 2E | Elliptical Orbit | Success |
| 1969-08-27 | Thor Delta L | Pioneer E | Space Launch Complex 17A | Heliocentric N/A | Failure |
Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.
Further reading: Wikipedia
Fewer than three recorded flights, so this page is marked noindex. It is here for completeness, not for search.