The Goupy No.1 a.k.a. Goupy Ibis was an experimental aircraft built in France in 1908 which on 5 September that year became the first triplane to fly. Designed by Ambroise Goupy and built by Voisin it was a conventional tractor design with fixed tailwheel undercarriage and an open cockpit. The only unorthodox aspects of the design were its triplane tail unit which was used by A.V. Roe in triplanes 1-3 in 1909.
Made by Voisin (aircraft).