<hi style=afpcap>During the early seventies the Air Force issued a request for manufacturers to design an Advanced Medium STOL (Short Take Off and Landing) Transport or AMST, with Boeing competing with their YC-14 against the McDonnell Douglas YC-15. These featured majority of the technological advances in aviation design, including the latest turbofan engine designs, along with radical wing design. Both companies produced a pair of prototypes which were funded in 1962, with the YC-14 making its first flight in August 1976, one year after the first YC-15. The AMST programme was plagued with problems with cost over runs, which force the entire project to be abandoned. In its place the Air Force elected to fund additional batches of C-130Hs for the reserves, pending a review of its transport needs. </hi>
