Elliot Seguin is a homebuilder, engineer, and test pilot. He is a member of the Society of Experimental Test Pilots and each year he competes at the Reno National Championship Air Races.
John W. Thorp has had a profound influence on both homebuilding and on aviation in general. If you've flown Piper Cherokees or know of the all-flying tail, you're familiar with his design principles, and his T-18 is still a favorite worldwide; by Amy Laboda.