Delta 3914 – McDonnell Douglas Family: Delta meters Length: 35 meters Diameter: 2.44 meters Launch Mass: 185 Low Earth Orbit Capacity: 951 The Delta 3914 was manufactured by McDonnell Douglas with the first launch on 1975-12-13. Delta 3914 has 0 successful launches and 0 failed launches with a total of 0 launches. The Delta 3000 series was an American expendable launch system which was used to conduct 38 orbital launches between 1975 and 1989. It was a member of the Delta family of rockets. Several variants existed, which were differentiated by a four digit numerical code. McDonnell Douglas is a Commercial USA entity that was founded in and is administered by . McDonnell Douglas has 0 successful launches and 0 failed launches with a total of 0 launches.