Reading the autobiography of my idol, Alberto Santos=Dumont.
He was a Brazilian inventor who designed and flew the first practical airplane.
The Wright Bros achieved the first powered, heavier than air flight. A huge deal! Alberto met & collaborated with them, and used their wing warping system for his plane.
But the Wright Bros flyer could only launch from a rail. It had to be retrieved and rolled back to the starting point.
Alberto's could land in any flat field and take off again.
