Air Progress Magazine October 1974 General Aviation Survey Planes

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

Air Progress Magazine October 1975

Air Progress Magazine October 1970 Bede 4 Kit Plane Aviation

Air Progress October 1971 American Trainer Magazine Mitchell B-25 Aviation

Air Progress Magazine October 1968 Red Baron Hanriot HD-1 Aviation History

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

Air Progress Magazine October 1972