Thor Delta M – McDonnell Douglas Family: Thor Length: 34 meters Diameter: 2.44 meters Launch Mass: 103 Low Earth Orbit Capacity: 355 The Thor Delta M was manufactured by McDonnell Douglas with the first launch on 1968-09-19. Thor Delta M 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.