Santos-Dumont Makes Powered Flight a Public Spectacle

In the autumn of 1906, Brazilian aeronaut Alberto Santos-Dumont brought his experimental biplane, the 14-bis, before gathering spectators and official judges in Paris. Already widely known in Europe for designing and piloting agile non-rigid airships, Santos-Dumont turned toward heavier-than-air machines following encounters with contemporaries like Gabriel Voisin. Seeking to claim prizes offered by the Aero-Club de France to stimulate domestic aviation, Santos-Dumont devised a machine framed from pine and bamboo, jointed with aluminium sockets, and enclosed in Japanese silk.

The architecture of the 14-bis employed Hargrave cells, box-kite structures arranged at the rear with pronounced upward dihedral to provide lateral stability. At the nose, Santos-Dumont mounted an adjustable cellular unit on a universal joint, operated by control cables to manage pitch and yaw in what later became known as a canard configuration. The pilot stood upright in an open wicker basket directly ahead of an Antoinette 8V liquid-cooled engine, which drove an aft-mounted pusher propeller. Initial suspended tests underneath his No. 14 airship nearly damaged the envelope, prompting Santos-Dumont to shift to cable-slung trials and subsequent unassisted runway runs.