ACY18130: DaVinci Paddleboat (Approx 7"L)

 
Product Description
With Da Vinci's flying machine, he developed a mechanical model to mimick the movements and structure of a bird. Like the bird, his machine uses movement (flapping) of the wings for propulsion. Of course man achieved powered flight though no designs to date have used flapping for propulsion (though you might think otherwise watching the wings in flight during turbulance!).