U.S. Centennial of Flight Commission home page

please see caption below

The Demoiselle was the world's first ultra-light airplane. It was largely constructed of bamboo. It was the first really successful plane built by Alberto Santos-Dumont and was popular with flying enthusiasts of the time. The prototype Demoiselle appeared in November 1907. The popular version of the plane debuted on March 6, 1909.

Credits - Gary Bradshaw; To Fly Is Everything