Tags: Aircraft.
The McDonnell Douglas C-9 is a military version of the McDonnell Douglas DC-9 airliner. It was produced as the C-9A Nightingale for the United States Air Force and the C-9B Skytrain II for the U.S. Naval Reserve and Marine Corps. The final active-duty flight of the C-9A Nightingale was in September 2005. The Boeing C-40 Clipper is replacing the Navy Reserve’s aging C-9B fleet.
