Lockheed Martin has won a contract worth $131.6 million for sustainment engineering services for the C-5 military transport aircraft. The C-5 is the US Air Force’s largest plane that can haul twice as much cargo as any other airlifter. It has been in service with the US Air Force since 1969 and supported military operations in all major conflicts. The Air Force currently owns 52 Super Galaxy aircraft. Work is to be completed by January 25, 2019.