Delta 7426-9.5 – McDonnell Douglas Family: Delta Length: 39 meters Diameter: 2.44 meters Launch Mass: 170 The Delta 7426-9.5 was manufactured by McDonnell Douglas with the first launch on 1999-02-07. Delta 7426-9.5 has 0 successful launches and 0 failed launches with a total of 0 launches. Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants (“Light” and “Heavy”). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997. Manufacturer 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.