In opening demonstration flights before the U.S. Army at Fort Myer, Virginia, Orville Wright makes the first flight with the new Wright A built to replace the one destroyed in September 1908.
Glenn Curtiss takes up nine passengers in New York in his seaplane America, built for Rodman Wanamaker, to make an attempt on the £10,000 prize offered by the Daily Mail for the first transatlantic crossing in a heavier-than-air machine.
The Air Parcel Post Bill becomes U.S. law, establishing domestic air parcel post and raising first class postage rates for air mail from five cents to six cents.
The Boeing B-52 enters operational service with the 93rd Bomb Wing.
The English Electric Lightning enters operational service with No. 74 Squadron RAF at RAF Coltishall.
First flight of the Vickers VC-10.
First flight of the Saab 105.
Italian Professor Enrico Forlanini’s steam-powered helicopter is tested at Alexandria, Egypt.