Scale model for electric .02 power. Ring-wing oldie. Refs: Aeroplane Monthly magazine, Sept. & Oct. 1976, Science Museum, London, Phif; Annular monoplane no. 3, 1914.
Scale model for electric .02 power. Ring-wing oldie. Refs: Aeroplane Monthly magazine, Sept. & Oct. 1976, Science Museum, London, Phif; Annular monoplane no. 3, 1914.
