Egged on by adoring fans who demanded more aircraft videos ... By winding a rubber band, it could store enough energy to turn a propeller for a short duration. With a 10 foot model taking ...

An airplane with no propeller and wings that ... which is just one reason we love [Hobi Cerdas]’s build of the Pterothopter, a rubber band-powered ornithopter modeled after a pterodactyl.