In Dakar, Lieutenant-Colonel Tulasne, Captain Gama and Lieutenant Michel complete the first trip across the Sahara desert and back, piloting Breguet-14 airplanes.
The first successful flight around the world starts as four Douglas World Cruisers leave from Seattle, Washington. Of the four, only two complete the circumnavigation as they each fly 27,553 miles (44,340 km) in 175 days, and return to Seattle on September 28. The actual flying time is 371 hours, 11 minutes, and the successful pilots are Lt. Lowell H. Smith and Lt. Erik Nelson.
The Argentinean Marquis de I. Pescara’s helicopter establishes in France a flying record of 2,550 feet (c. 777 meters) in 4 minutes, 11 seconds. This helicopter provides for auto-rotation (free blade rotation) in case of engine failure. This invention is a life-saving device, as it allows for a measure of control and lift.
Imperial Airways inaugurates its London/Paris service.
The first helicopter flight in a closed circle is made in France by Etienne Oehmichen’s helicopter No.2. The previous month, it established a world record by flying 1,182 feet (360 meters).
The first scheduled air service in Canada begins. Laurentide Air Service Ltd. offers flights between Angliers, Lake Fortune and Rouyn, Quebec.
Adrienne Bolland wins the women’s record for looping from Laura Bromwell, performing the feat 212 times in 1 hour, 1 minute in her Caudron 127 in Paris.
The prototype Focke-Wulf A 16 monoplane makes its first flight. Capable of carrying four passengers, it is the first product of Focke-Wulf Flugzeugbau GmbH.
The first recorded flight of a live bull takes place when champion breeder Nico V is flown from Rotterdam, Holland to Paris, France. The bull is carried by KLM in a Fokker F.III transport aircraft.
Two Japanese airmen, Yukichi Goto and his flight engineer Minezo Yonezawo, return to Osaka after completing the first flight around Japan. The flight covers 2,727 miles and takes over 33 hours.
Regular airmail service in Canada begins with flights between Ontario and Quebec.
Two U.S. Army planes land after an around-world flight, Seattle to Seattle, after 57 stops.
Edwin Hubble announces the existence of other galaxies.