Flying Robot Bird Unveiled
mikejuk writes "Festo, well known for their biologically inspired robots, have a new creation called SmartBird. It is amazing to watch and all the more amazing when you realize that it flaps its wings and all of the control is via a torsion drive which twists the wings during each flap. The whole thing depends on the constant intervention of the software to keep it under control."
Why do no ornithopters employ feather analogs? They all have solid wings. Flight feathers form a check valve, letting air through the wing on the upstroke, and capturing it on the downstroke. This arrangement allows the bird to put a lot less energy into the upstroke (and thus not lose as much altitude). With a solid wing, you wind up pushing the craft down on the upstroke almost as much as you lift it on the downstroke.
When our name is on the back of your car, we're behind you all the way!