Proposed small test glider for the Dunne-Huntington type, not built. Dunne-Huntington triplane, designed 1907–1908, flown 1910. Triple tandem wing with high-mounted central wing and smaller fore wing, leading some to refer to it as a biplane.[15][16][17] Constructed by Professor A. K. Huntington to Dunne's design, the only type which was not of tailless swept configuration.