Retired· United States Air Force

Thor DM-21 Ablestar

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.

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Launches

since Apr 1960

Success rate

68.4%

13 of 19 successful

In a row

successful launches

Launches per Year

Full year2026 so far

Specifications

Height: 29 m
Diameter: 1.44 m
Liftoff mass: 51 t
Liftoff thrust: 760 kN
To low Earth orbit: 150 kg
Stages: 2
First flight: April 13, 1960
Manufacturer: United States Air Force

Next Launches

No Upcoming Launches

No launch is scheduled for this vehicle right now.

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