Thor DM-21 Ablestar
Thor familyUnited States Air ForceRetired
The Thor-Ablestar, or Thor Able-Star, also known as Thor-Epsilon was an early American expendable launch system consisting of a PGM-17 Thor missile, with an Ablestar upper stage. It was a member of the Thor family of rockets, and was derived from the Thor-Able.
Specifications
- Thrust
- 760 kN
- Height
- 29 m
- Diameter
- 1.44 m
- Launch mass
- 51 t
- Stages
- 2
- LEO capacity
- 150 kg
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
19flightswith a definitive outcome
68.4%success rate13 of 19
6failuresincluding partial failures
5success streakcurrent
First flight April 13, 1960 · latest August 13, 1965
Counted from padside's own launch record, the same basis as the stats page.
Flights per year
- Successful
- Failed
Show the numbers for Thor DM-21 Ablestar flights per year
| Year | Successful | Failed | Total |
|---|---|---|---|
| 1960 | 3 | 2 | 5 |
| 1961 | 2 | 1 | 3 |
| 1962 | 1 | 2 | 3 |
| 1963 | 2 | 0 | 2 |
| 1964 | 2 | 1 | 3 |
| 1965 | 3 | 0 | 3 |