- Marine Corps Aircraft
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Contractor: Boeing Aircraft Corporation (formerly the McDonnell Douglas Corporation). Service: USN, USMC Speed: 565 mph (Mach 0.86/904 km/h) at 25,000 feet ( 7.500 meters), with maximum takeoff weight. Ceiling: 37,000 feet. Range: More than 2,000 miles (1,739 nautical miles or 3,200 km). Crew: C-9A/C, eight (pilot, copilot, flight mechanic, two flight nurses, three aeromedical technicians); C-9B, two pilots plus cabin attendants.
Adapted from the civilian DC-9 airliner, the C-9 Skytrain is used primarily for personnel transport and aeromedical evacuation. In service for more than 40 years, the U.S. Air Force retired its last C-9 in 2011. The U.S. Navy and Marine Corps still operate 17 C-9 Skytrains.
The Navy is set to replace its fleet of C-9 Skytrains with the C-40 Clipper.