ItÕs the classic, worldÕs bestselling paper airplane book, grounded in the aerodynamics of paper and abounding with fun. The World Record Paper Airplane Book raises paper airplane making to a unique, unexpected art. This new edition boasts four brand-new models: Stiletto, Spitfire, Galactica, and Sting Ray. Added to its hangar of proven fliersÑincluding Valkyrie, Hammerhead, Vortex, Condor, Pterodactyl, and, of course, the famous World Record Paper AirplaneÑthat makes twenty airworthy designs. Each is swathed in all-new, attention-grabbing graphics and is ready to tear out, fold, and fly. There are at least five models for each design and all-important instructions for how to adjust and throw each plane for best flight.But the planes are just the beginning. The book features tons of cool information on aerodynamics, competitions, and designing your own high-performing models. Readers will learn why paper airplanes fly (and why they crash), the history of Ken BlackburnÕs world record, and how to organize and win contests. Also included is a flight log and pull-out runway for practicing accuracy.