The C-17 (Globemaster III) is an American cargo and troop transport aircraft built by the McDonnell Douglas Corporation and first deployed in 1993. It is powered by four Pratt and Whitney F117-PW-100 turbofan engines giving a maximum speed of 500 mph and a service Ceiling of 45,000 feet at cruising speed. It carries a crew of three, two pilots and one loadmaster and a cargo of 102 troops/paratroops; or 48 litter and 54 ambulatory patients and attendants or 76,644 kg of cargo in 18 pallet positions. Research C-17
 
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