The Atlas-Able was an American expendable launch system derived from the SM-65 Atlas missile.
It was a member of the Atlas family of rockets, and was used to launch several Pioneer spacecraft towards the Moon.
[2] The first Atlas-Able used an Atlas C as the first stage,[3] and was intended to carry Pioneer P-1, but exploded during a static fire test on 24 September 1959.
[4] The remaining Pioneer launches used Atlas D missiles.
Launches were conducted from Launch Complexes 12 and 14 at the Cape Canaveral Air Force Station.