Tags: Rocket.
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. Of the five Atlas-Able rockets built two failed during static firings and the other three failed to reach orbit.The Atlas-Able was a three and a half stage rocket with a stage and a half Atlas missile as the first stage an Able second stage and an Altair third stage.