Air Progress Magazine October 1986

Air Progress Magazine October 1977

Air Progress Magazine October 1974 General Aviation Survey Planes

Air Progress Magazine October 1973 Bede BD-5 Experimental Aircraft Aviation

Air Progress October 1969 Travel Air D4D Biplane Aviation History Magazine

Air Progress Magazine October 1972 BD-5 First Flight Test Results Aviation

Air Progress Magazine October 1970 Bede 4 Kit Plane Aviation

Air Progress Magazine October 1975