Sean D. Tucker donated his custom-built biplane, the Aviation Specialties Unlimited Challenger III, to the Museum for display in the "Thomas W. Haas We All Fly" gallery.. Displaying Challenger III in the gallery showcases the technological achievements of the aircraft, including its eight ailerons that enhanced maneuverability and the engine’s cold-air induction system and state-of-the art fuel injection. Credit: Emmanuel Canaan