The Lockheed C-5 Galaxy is a large military transport aircraft designed and built by Lockheed, and now maintained and upgraded by its successor, Lockheed Martin. It provides the United States Air Force (USAF) with a heavy intercontinental-range strategic airlift capability, one that can carry outsized and oversized loads, including all air-certifiable cargo. The Galaxy has many similarities to the smaller Lockheed C-141 Starlifter and the later Boeing C-17 Globemaster III. The C-5 is among the largest military aircraft in the world.
The C-5 Galaxy's development was complicated, including significant cost overruns, and Lockheed suffered significant financial difficulties. Shortly after entering service, cracks in the wings of many aircraft were discovered and the C-5 fleet was restricted in capability until corrective work was completed. The C-5M Super Galaxy is an upgraded version with new engines and modernized avionics designed to extend its service life to 2040 and beyond.
The USAF has operated the C-5 since 1969. In that time, the airlifter supported US military operations in all major conflicts including Vietnam, Iraq, Yugoslavia, and Afghanistan, as well as allied support, such as Israel during the Yom Kippur War and operations in the Gulf War. The Galaxy has also distributed humanitarian aid, provided disaster relief, and supported the US space program.
Westover Air Reserve Base (IATA: CEF, ICAO: KCEF, FAA LID: CEF) is an Air Force Reserve Command (AFRC) installation located in the Massachusetts communities of Chicopee and Ludlow, near the city of Springfield, Massachusetts. Established at the outset of World War II, today Westover is the largest Air Force Reserve base in the United States, home to approximately 5,500 military and civilian personnel, and covering 2500 acres (10 km²). Until 2011, it was a backup landing site for the NASA Space Shuttle and in the past few years has expanded to include a growing civilian access airport (Westover Metropolitan Airport) sharing Westover's military-maintained runways. The installation was named for Major General Oscar Westover who was commanding officer of the Army Air Corps in the 1930s.
The host unit is the 439th Airlift Wing (439 AW) of the Fourth Air Force (4 AF), Air Force Reserve Command. Outside of the AFRC command structure, the 439 AW and Westover are operationally gained by the Air Mobility Command (AMC).
Due to its location as one of the few remaining active military air bases in the northeast United States, Westover ARB is transitted by many different U.S. military aircraft of all the services.
Westover ARB has the longest runway in Massachusetts.