Ferdinand Marie Léon Delagrange was a sculptor and pioneering French aviator who was one of the top aviators in the world.

The 1907 Voisin biplane, was Europe's first successful powered aircraft, designed by aeronautical engineer and manufacturer Gabriel Voisin. It was used by the French aviator Henri Farman to make the first heavier-than-air flight lasting more than a minute in Europe, and also to make the first full circle. The first examples of the aircraft were known by the name of their owners, for instance the Delagrange I, or the Henri Farman n°1. Farman made many modifications to his aircraft, and these were incorporated into later production aircraft built by Voisin. The type enjoyed widespread success, and around sixty were built.