the MC-12 Liberty is the U.S. Air Force’s newest manned surveillance aircraft to support joint commanders in combat environments. The MC-12W is a medium- to low-altitude, twin-engine turboprop ...

But there were still no aircraft for them to fly ... 4 - British-designed de Havilland bombers with American-built Liberty V-12 engines - with the RAF's No. 218 Squadron on Oct. 2, U.S. Marine ...