Thor Delta N6 – McDonnell Douglas Family: Thor Length: 33 meters Diameter: 2.44 meters Launch Mass: 102 The Thor Delta N6 was manufactured by McDonnell Douglas with the first launch on 1970-01-23. Thor Delta N6 has 0 successful launches and 0 failed launches with a total of 0 launches. American orbital launch vehicle family with Thor first stage and a delta second stage. 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.