Thor Able I – McDonnell Douglas Family: Thor Length: 30 meters Diameter: 2.44 meters Launch Mass: 51 Low Earth Orbit Capacity: 120 The Thor Able I was manufactured by McDonnell Douglas with the first launch on 1958-04-24. Thor Able I has 0 successful launches and 0 failed launches with a total of 0 launches. American orbital launch vehicle. Thor with Able stage derived from Vanguard 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.