Contents of the Collection The Karl Martinez Dash-80 Film consists of one home movie-style film of Boeing Company test pilot Alvin “Tex” Johnston performing a barrel roll of the Boeing 367-80, a prototype of the Boeing 707, over the 1955 Seafair Gold Cup Hydroplane races.The footage begins with scenes of hydroplanes and boats on Lake Washington, spectators on boats, and a U.S. Navy airship with the text "Join the U.S. Naval Air Reserve / Be a Naval Aviation Cadet" on its gasbag. The barrel roll footage...