July 1, 1933 Because United Air Lines tied up rights to all Boeing 247 production, TWA asks Douglas aircraft to develop a competitive aircraft. Douglas's response, the DC-1, makes its first flight on this date.
July 1, 1933 Roscoe Turner sets a westbound transcontinental record of 11 hours, 30 minutes, in a Wedell-Williams racer.
July 1-15, 1933 Italo Balbo brings 23 Savoia-Marchetti S.55 flying boats from Rome to Chicago, via New York. This is the first formation flight across the North Atlantic.
July 9-December 19, 1933 Charles and Anne Lindbergh make a 29,000-mile survey flight in their Lockheed Sirius.
July 15-17, 1933 Steponas Darius and Stasys Girenas fly from New York to Soldin, Germany, but are killed in a crash on arrival.
July 15-22, 1933 Wiley Post flies the Lockheed Vega Winnie Mae around the world solo in 7 days, 18 hours, 49 minutes. He had a new radio compass and new autopilot.
July 22-24, 1933 Jim and Amy Mollison become the first husband-wife team to fly east-west across the Atlantic.
August 5-7, 1933 Flying from New York to Syria, French pilots Maurice Rossi and Paul Codes set a world distance record of 5,657 miles.
September 1933 The famous Portuguese flyer General Francesco de Pinedo is killed in a Bellanca on takeoff from Floyd Bennett Field.
September 1933 Jimmy Wedell wins the Thompson Trophy in a Wedell-Williams Special, then sets a world speed record for landplanes of 305.33 miles per hour.
September 7-8, 1933 Six Consolidated P2Y-1 flying boats set a formation distance record, flying nonstop from Norfolk, Virginia, to Coco Solo, Canal Zone.
September 25, 1933 Roscoe Turner sets a west-east transcontinental record of 10 hours, 4 minutes, 55 seconds.
September 28, 1933 Gustave Lemoine sets a new world altitude record of 44,820 feet in a Potez 50.
October 12, 1933 The Macon flies from Lakehurst to Sunnyvale in 70 hours.
December 31, 1933 A prototype of the Polikarpov I-16 makes its first flight; it will be the first monoplane fighter with retractable landing gear and an enclosed cockpit to go into squadron service.