Delta 0900 (McDonnell Douglas)

The Delta 0900 is a non-reusable, inactive launch vehicle manufactured by McDonnell Douglas. It undertook its inaugural launch on 07/23/1972.

The Delta 0100 series, also Delta 100, 0300 or 300 series, was an American expendable launch system which conducted orbital launches between 1968 and 1972. It was a member of the Delta family of rockets, and the first to be designated using a four digit numerical code. Two variants were flown, individually designated Delta 0300 and Delta 0900.