11 May 1911 (France) — Edouard Niéport, a racing cyclist before he went into aircraft construction, sets a new speed record of 74.4 mph flying his “Nieuport” monoplane powered by a 28-hp engine.

11 May 1918 (France) — AEF received a DH-4, its first American-made airplane.

11 May 1926 (North Pole) — The first airship flight over the North Pole and the first crossing of the Arctic Ocean is made by Roald Amundsen of Norway, Umberto Nobile of Italy, Lincoln Ellsworth of the United States, and their crew in an Italian-built semi-rigid airship, N-1, “Norge”.

11 May 1927 (USA) — Charles Lindbergh lands his new Ryan airplane, the “Spirit of St. Louis,” in St. Louis after a record non-stop overnight flight from San Diego of 14 hours, 25 minutes.