Air Progress Magazine May 1974

Air Progress September 1974 Maule Rallye Aircraft Magazine Aviation

Air Progress Magazine November 1974 BD5 Aircraft Aviation Flying

Air Progress Magazine December 1974

Air Progress Magazine January 1974 Lightplane Research Reno Races Vintage

Air Progress Magazine August 1974 Aircraft Piloting Sport Directory

Air Progress Magazine August 1974

Air Progress Magazine March 1974 Lightplane Aircraft Fuel Crunch Aviation