The 105th Airlift Wing is the host unit for Stewart Air National Guard Base. Located in Newburgh, New York, the 105th has been located at Stewart since 1983. The C-17 Globemaster III is the most flexible cargo aircraft to enter the airlift force. The C-17 is capable of rapid strategic delivery of troops and all types of cargo to bases. The aircraft can perform tactical airlift and airdrop missions. The inherent flexibility and performance of the C-17 force improves the ability of the total airlift system to fulfill the worldwide air mobility requirements of the United States. The C-17 measures 174 feet long with a wingspan of 169 feet, 10 inches. The aircraft is powered by four Pratt & Whitney F117-PW-100 turbofan engines and operated by a crew of three (pilot, co-pilot, and loadmaster).