Second Eagle prototype / demonstrator. It was loaned to McDonnell Douglas as a company demonstrator in February 1976 and was still a TF-15A at this time (it was redesignated to F-15B on 1 December 1977). Seen here demonstrating at the 1976 Japan International Aerospace Exhibition, in bicentennial colours with the "American Revolution Bicentennial 1776-1976" logo on the fins.