. "6"^^ . . "2.44"^^ . "26.9"^^ . . "The Thor-Able was an American expendable launch system and sounding rocket used for a series of re-entry vehicle tests and satellite launches between 1958 and 1960. It was a two stage rocket, consisting of a Thor IRBM as a first stage, and a Vanguard-derived Able second stage. On some flights, an Altair solid rocket motor was added as a third stage. It was a member of the Thor family, and an early predecessor of the Delta."@en . . "16"^^ . "5.1608e+07"^^ . . . "1960-04-01Z"^^ . . "2"^^ . . . . "1958-04-24Z"^^ . . . "10"^^ .