Thor family
Thor Delta M
American orbital launch vehicle family with Thor first stage and a delta second stage.
Flights flown12
Success rate83.3%10/12
Payload to LEO355kg
Cost per kg to LEO$62,817$22.3M per launch
Maiden flight1968-09-19
Peak year19705 flights
Thor Delta M is built by McDonnell Douglas of the United States. It first flew on 19 September 1968 and last flew on 3 February 1971.
Flight record
83.3% success rate10 of 12 flown · 2 failed
1968peak 1970 · 5 flights1971
First flight1968-09-19
Latest flight1971-02-03
Failures2
Consecutive successes7
Fastest turnaround26d 12h
Payload
| Low Earth orbit | 355kg |
|---|---|
| Geostationary transfer orbit | 355kg |
| Launch cost | $22.3M |
| Cost per kg to LEO | $62,817 |
Vehicle
| Stages | 3 |
|---|---|
| Length | 34m |
| Diameter | 2.44m |
| Launch mass | 103t |
| Liftoff thrust | 2,140kN |
| Maiden flight | 1968-09-19 |
| Reusable | No |
Pads used
Orbits delivered
Geostationary Orbit12
Launch history
| Date | Mission | Pad | Orbit | Outcome |
|---|---|---|---|---|
| 1971-02-03 | Thor Delta M | NATO IIB | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1970-08-19 | Thor Delta M | Skynet IB | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1970-07-23 | Thor Delta M | INTELSAT III F-8 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1970-04-23 | Thor Delta M | INTELSAT III F-7 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1970-03-20 | Thor Delta M | NATO IIA | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1970-01-15 | Thor Delta M | INTELSAT III F-6 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1969-11-22 | Thor Delta M | Skynet IA | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1969-07-26 | Thor Delta M | INTELSAT III F-5 | Space Launch Complex 17A | Geostationary Orbit | Failure |
| 1969-05-22 | Thor Delta M | INTELSAT III F-4 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1969-02-06 | Thor Delta M | INTELSAT III F-3 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1968-12-19 | Thor Delta M | INTELSAT III F-2 | Space Launch Complex 17A | Geostationary Orbit | Success |
| 1968-09-19 | Thor Delta M | INTELSAT III F-1 | Space Launch Complex 17A | Geostationary Orbit | 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