1) The authors built a paper airplane launcher to test which paper airplane design would fly the farthest with consistent launch conditions. 2) They tested 7 different paper airplane designs, including the Moth, Dart, Arrow, Kite, and Champ. 3) Contrary to their hypothesis that the Moth would win, the Dart flew the farthest average distance of 649.3 centimeters based on 3 launches with the custom launcher.