With the twist of a rubber band tomorrows aircraft engineers can learn the art & science of aviation. Loaded with everything needed to build three amazing rubber-b&-powered contraptions including a high-performance plane a high-flying helicopter & the fantastic flap-a-copter (also known as a ornithopter) this title comes with easy-to-follow instructions a troubleshooting section & tips on how to improve your planes performance & make it circle oar & loop-the-loop.