Editing Lockheed C-5 Galaxy (section)

===C-5D===
Proposed during the 1990s Non-Developmental Airlift Aircraft (NDAA) program as an alternative to further purchases of the [[McDonnell Douglas C-17 Globemaster III]] as well as a replacement for older C-5As. The C-5D was to have [[GE-Aviation|General Electric]] [[General Electric CF6|F138-GE-100]] (CF6-80C2) engines, improved avionics and significantly improved reliability and maintainability, although it could not use austere runways or conduct [[airdrop]] operations and had a higher expected operating cost. The plan was canceled in favor of the purchase of more C-17s. The specifications of the C-5D were later used in the C-5M upgrade program.<ref>FlightGlobal.[https://www.flightglobal.com/lockheed-chooses-cf6-80c2-for-c-5d/17021.article "Lockheed chooses CF6-80C2 for C-5D"]. Flightglobal.com </ref>