Citations:aëroplanes

Noun: optional spelling of

 * 1915, Frederick A. Talbot, Aëroplanes and Dirigibles of War, J. B. Lippincott and William Heinemann; Chapter XIII, page #178:
 * Looking round, they observed three French aëroplanes soaring around and above them at high speed. Scarcely had they realised the situation before a spirited mitrailleuse fire was rained upon them. One of the German aëroplanes was speedily disabled.