1894 - Birth of Lothar-Siegfried Freiherr von Richthofen, German WWI fighter ace, younger brother of top-scoring ace Manfred von Richthofen.
1899 - Birth of Thomas Melling "Tommy" Williams, British WWI flying ace, High ranking officer during and post WWII.
1908 - Thérèse Peltier makes a flight of 200 metres (656 feet) at a height of approximately 2.5 meters (8 feet) at the Military Square in Turin, Italy. Photos of Peltier with the aeroplane are published on 27 September. Unofficially, it is the first flight by a female aviator.
1909 - 1st flight of the Short No.2, early British biplane aircraft built for Moore-Brabazon, similar to the Wright Model A with a forward elevator and rear-mounted tailplane driven by a pair of pusher propellers chain driven by the single centrally-mounted engine.
1910 - Death of Jorge Chávez Dartnell, also known as Géo Chávez, Franco – Peruvian aviator, of injuries sustained from his crash upon landing after the 1st air crossing of the Alps.
1910 - 1st United Kingdom aircraft radio is tested when the distinguished actor Robert Loraine reads of the Dickson exploit. He takes steps to fly his Bristol Boxkite to support the 'Blue Army'. The aircraft wass fitted with a 14 pound radio fitted by Thorne Baker, which Loraine uses to transmit simple one and two word messages using a Morse key strapped to his left knee, while controlling the aircraft with the other hand. The equipment had a range of about one mile and communications from ground to air achieved with hand-held lamp signals.
1916 - Birth of José Falcó Sanmartín, Spanish Republican flying ace of the civil war.
1918 - Death of Fritz Rumey, German WWI fighter ace, killed in action in his Fokker D.VII.
1918 - Death of Captain Samuel Frederick Henry "Siffy" Thompson, WWI two-seater fighter ace, killed in his Bristol F.2b near Cambrai by Otto Schmidt with a Fokker D.VII.
1918 - Death of Clifford John Tolman, British WWI flying ace, killed in action in his Bristol F.2b.
1918 - Death of Thomas Proctor, Irish WWI flying ace, killed in action in his Bristol F.2b.
1918 - Canadian WWI flying ace Lewis Hector "Hec" Ray with his Sopwith Dolphin shot down 3 Fokker D.VII and a Balloon on a single mission.
1922 - Dr. Albert Taylor and Leo Young, scientists at the US Naval Aircraft Radio Laboratory, make the 1st successful detections of objects by "radio observation". They use wireless waves to detect objects not visible due to weather or darkness. This insight leads to the advent of radar.
1922 - US Navy conducts the 1st large-scale torpedo bombing exercises. Eighteen Naval Aircraft Factory PTs attack three battleships and score 8 hits in 25 minutes.
1924 - The Two-Seater Dual Control Light Aeroplane Competition begins at Lympne Aerodrome. The rules required competing aircraft to have engines with a capacity of no more than 1,100 cc, to have full dual controls and one or two airspeed visible from either cockpit. All tests were to be flown with a load of 340 lb (154 kg), excluding fuel but including the pilot's weight.
1927 - Otto Könnecke takes off from Cologne with a Caspar C 32, German agricultural single-bay biplane with staggered, equal-span wings, in an attempt ro reach the USA on an eastern flight via India and Japan.
1928 - The Under Secretary of State for Air, Sir Philip Sassoon, and the Director of Equipment, Air Commodore Longmore, begin a 9,900 mile flight from Felixstowe to Karachi and back, by Blackburn Iris II flying boat, to inspect Royal Air Force units in Malta, Egypt and Iraq
1929 - French Dieudonne Costes and Maurice Bellonte takes off from Paris Le Bourget to Moullart, Manchuria in a Breguet 19 Super Bidon named 'Question Mark', for a new distance record.
1933 - 1st flight of the Leopoldoff L-3 'Colibri', French-built light sporting and trainer biplane.
1935 - 1st flight of The Loire 250, French single-seat prototype fighter monoplane.
1940 - S/L Ernest Archibald "Ernie" McNab became the 1st RCAF ace during WWI, shooting down a Me 110 and a Ju 88 that day.
1940 - 1st convoy of aircraft to use the West African Reinforcement Route, six Hawker Hurricanes, led by a Bristol Blenheim carrying a navigator en route across the African Continent, arrives at Abu Sueir in Egypt, from Takoradi in the Gold Coast.
1941 - Death of Riccardo Helmut Seidl and Bartolomeo Tomasino, Italian WWII pilots, Killed while attacking convoy Halberd (British convoy from Gibraltar to Malta) in their Savoia-Marchetti S.M.84 .
1942 - Death of George Hedley Stainforth AFC RAF, British Royal Air Force pilot and 1st man in the world to exceed 400 miles per hour. killed in action whilst piloting His Bristol Beaufighter at Gharib, near the Gulf of Suez.
1943 - Death of Hans-Dieter Frank, German Luftwaffe WWII night fighter ace, killed in a mid-air collision with another Messerschmitt Bf 110 night fighter.
1946 - Death of Joseph Denis Bernard Robert De Bonnefoy, French WWI flying ace
1946 - Death of Geoffrey de Havilland Jr, British test pilot and the son of the English aviation pioneer and aircraft designer of the same name, killed when his de Havilland DH.108 breaks up in mid-air.
1949 - 1st flight of the Arsenal VG-90, French Single seat Carrier born jet fighter prototype.
1952 - Birth of Dumitru-Dorin Prunariu, Romanian Aviator, Engineer, Diplomat and Cosmonaut.
1956 - 1st piloted airplane to exceed Mach 3 (three times the speed of sound) is the rocket-powered Bell X-2. Unfortunately, The X-2 began a series of diverging rolls and tumbled out of control. The pilot tried to regain control of the aircraft. Unable to do so, he separated the escape capsule. Too late, he attempted to bail out. Milburn G. "Mel" Apt was killed when the capsule hit the Edwards bombing range. The rest of the X-2 crashed five miles away.
1959 - Death of René Caudron, french aviation pioneer and aircraft designer along with his brother Gaston.
1964 - 1st flight of The British Aircraft Corporation TSR-2, British Cold War strike and reconnaissance aircraft prototype.
1966 - Birth of Stephanie Diana Wilson, American engineer and NASA astronaut.
1967 - A Lockheed SP-2H Neptune of VP-30, collided with a US Navy Vought RF-8G Crusader assigned to VFP-62 during a heavy rainstorm, near Jacksonville Beach, Florida. All 6 on both planes were killed.
1973 - Launch of Soyuz 12, Soviet manned test flight by the Soviet Union of the newly-redesigned Soyuz 7K-T spacecraft that was intended to provide greater crew safety in the wake of the Soyuz 11 tragedy.
1973 - Texas International Airlines Flight 655 Convair 600 crashed in bad weather into Black Fork Mountain, Arkansas, killing all 11
1976 - Birth of Luca Parmitano, Italian Air force pilot, test pilot and ESA spationaut.
1977 - Japan Airlines Flight 715 McDonnell Douglas DC-8 crashed on final approach into the side of a hill 4 miles from Sultan Abdul Aziz Shah Airport, killing 34 over 79.
1990 - United Airlines becomes the 1st commercial operator to use satcoms (satellite data communications) on a flight between San Francisco and Hong Kong.
1993 - Death of James Harold "Jimmy" Doolittle, American aviation pioneer and USAF pilot.
1997 - Communications are suddenly lost with the Mars Pathfinder space probe.
2003 - Launch of SMART-1, Swedish-designed European Space Agency satellite, designed to orbit around the moon and Eurobird 3, European communications satellite with launcher Ariane 5.
2007 - Launch of Dawn, spacecraft sent by NASA with international cooperation on a space exploration mission to the two largest members of the asteroid belt — Vesta and the dwarf planet Ceres.
2008 – CNSA astronaut Zhai Zhigang becomes the 1st Chinese person to perform a spacewalk while flying on Shenzhou 7.
2011 - Launch of TacSat-4, 4th in a series of U.S. military experimental reconnaissance and communication satellites.