1911 - 1st flight of The Royal Aircraft Factory S.E.1 (Santos Experimental), British experimental aircraft pusher biplane with large balanced fore-elevators built at the Army Balloon Factory at Farnborough (later the Royal Aircraft Factory). Its place in aviation history is mainly that it was the 1st in the series of Royal Aircraft Factory designs - several of which played an important role in WWI.
1912 - Death of Arthur Laibel "Al" Welsh (born Welcher), Jewish, Russian-born American pioneer aviator, 1st flight instructor for the Wright Brothers, killed in the crash of his Wright Model C along with Leighton Wilson Hazelhurst, Jr., American aviation pioneer.
1928 - 1st flight of the Lippisch Ente, 1st rocket-powered full-size aircraft, designed as a sailplane and flown by Fritz Stamer. This was the 1st rocket-powered manned airplane flight.
1929 - 1st flight of The Vickers Type 143 or Bolivian Scout, British single-seat fighter biplane designed for Bolivia.
1929 - Marine Aircraft Corp is incorporated into Detroit Aircraft to specialise exclusively in all-metal amphibian and flying boat construction for commercial and naval uses.
1929 - Aviation Tool, Co is incorporated into Detroit Aircraft to take over and continue the development of automatic riveting machines and their application to all types of aircraft.
1930 - Death of Emil Thuy, German WWI fighter ace, who was an adviser to the Finnish air force involved in the secret origins of the Luftwaffe within the Soviet Union, Killed in the crash while testing a secret Albatros L 76 reconnaissance airplane.
1931 - The Handley Page HP-42, British four-engine long-range biplane airliner, enters service with the British airline Imperial Airways and sets new standards of passenger service and comfort. It carries 40 passengers.
1932 - 1st flight of the Loire 60, French trimotor parasol wing training seaplane prototype for reconnaissance.
1933 - Spanish aviators Mariano Barberán y Tros de Ilarduya, Joaquín Collar Serra and Modesto Madariaga lands the 'Cuatro Vientos' (a specially built Br.19 TF Super Bidon) in Camagüey, Cuba after a transatlantic flight of 7320 km (39 hours and 55 minutes) from Seville Spain
1936 - 1st flight of the Bloch MB-220, French twin-engine passenger transport airplane.
1937 - 1st flight of The Kawanishi E11K, Japanese night reconnaissance flying boat prototype.
1937 - Death of Reginald Joseph Mitchell,, British aeronautical engineer, best known for his design of the Supermarine Spitfire.
1937 - 1st flight of The Airspeed AS.30 Queen Wasp (landplane version), British pilotless target aircraft prototype.
1940 - The Caudron-Renault CR 760, French prototype lightweight fighter aircraft, is destroyed at Orleans-Bricy to prevent it falling into German hands.
1940 - Following the Italian declaration of war, Sudan-based Vickers Wellesleys carried out the 1st bombing mission of this aircraft against Asmara in Eritrea.
1940 - Beginning of the Siege of Malta, fight for the control of the strategically important island of Malta. The Regia Aeronautica carries out its 1st operation against the RAF of WWII. 35 Savoia Marchetti SM79 Sparviero (Hawk) bombers, escorted by Macchi MC200 Saetta (Lightning) fighters, attack the airfield at Hal Far and the seaplane base at Kalafrana in Malta
1940 - Operation Haddock : Armstrong Whitworth Whitleys of Nos. 10, 51, 58, 77 and 102 Squadrons, a total of 63 aircrafts, take off from Jersey and Guernesey for the 1st RAF bombing of Italy. Heavy storms and severe icing caused the majority of the aircraft to turn back and only 13 reached their targets at Turin and Genoa. Two aircrafts failed to return. Wellingtons from Nos. 99 and 149 Squadrons were blocked at Marseilles as the French Army told them that Italian targets were not to be attacked.
1940 - RCAF No. 1 Fighter Squadron is shipped Overseas with its Hurricanes in time to take part in the Battle of Britain.
1943 - 1st flight of The H.P. 75 Manx, British experimental aircraft, twin-engine tailless design in pusher configuration.
1943 - Operation Corkscrew ends. Italian garrison on Pantellaria surrenders after taking heavy bombing, 1st ground captured by air power alone.
1943 - 326 Lancasters, 202 Halifaxes, 143 Wellingtons, 99 Stirlings and 13 Mosquitos raid Dusseldorf. 130 acres were claimed as destroyed, and this proved to be the most damaging raid of the war for this city.
1944 - F/O L. Sherman and crew in Consolidated Canso of No. 162 Squadron sank the German submarine U-980 north of the Shetland Isles.
1944 - Birth of James Dougal Adrianus "Ox" van Hoften, NASA Astronaut.
1950 - 1st flight of the Starck AS-90 'New Look', French Sports single seat monoplane sports aircraft for homebuilt construction.
1951 - Death of John Robertson Duigan, Australian pioneer aviator who built and flew the 1st Australian-made aircraft.
1951 - William "Bill" Barton Bridgeman set a new unofficial airplane speed (over 1,200 mph) and altitude record (70.000ft) at Edwards AFB, Muroc Dry Lake, Calif. flying the Douglas D-558-2 Skyrocket.
1953 - The 2nd Gloster Javelin prototype, British "all-weather" interceptor aircraft, crashes. Gloster test pilot Peter Godfrey Lawrence delayed his ejection too long in order to ensure that the aircraft would land on open ground. Finally ejecting at an altitude of about 400 feet (122 m) his parachute was unable to open in time.
http://en.wikipedia.org/wiki/Gloster_Javelin#Design_and_development - http://aviation-safety.net/wikibase/wiki.php?id=20519
1955 - 1st flight of the SIPA S-1000 'Coccinelle', French light civil utility aircraft prototype, two-seat side-by-side low-winged aircraft with fixed-tricycle undercarriage which incorporated a number of standard automobile parts. It intended to be a very low cost all-metal trainer of very simple construction for aero club use.
1962 - Launch of Rhebar II, Pakistan Sounding Rocket, Experimental Technology mission with a small payload of small weather satellite.
1963 - 1st flight of the Republic Thunderchief F-105F, Two-seat trainer version with lengthened forward fuselage, dual controls, taller fin, fully combat-capable
1965 - Luna 6 (lunik 6), Soviet unmanned spacecraft intending to land on the moon, misses its target. Although the main retro-rocket engine (the S5.5A) ignited on time, it failed to cut off and continued to fire until propellant supply was exhausted.
1965 - 1st flight of the HAL Chetak (Indian Assembled Alouette III, single-engine, light utility helicopter developed by Sud Aviation).
1966 - 1st flight of the Indraéro Aéro 20, French small, 2-seat, single-engined monoplane prototype for general and sports flying.
1967 - Death of Donald Hudson, American WWI flying ace, South American aviation pioneer, 1st to overfly the Andes Mountains, Instructor for the Bolivian Air Force and record setter.
1971 - British pilot Sheila Scott takes off for the 1st flight by a light plane from equator to equator via the North Pole. Flying in a Piper Aztec D, she covers 34,000 miles (54,718 km).
1972 - Death of Louis Mark Thompson, Canadian WWI flying ace (as observer/gunner)
1977 - Death of Paul Albert Pierre Tarascon, French WWI flying ace, known as "l'as à la jambe de bois" (the ace with the wooden leg) after having lost his right foot in a crash.
1978 - Death of Alfred Fleischer, german WWI flying ace who served in WWII
1983 - Launch of Giuseppe Garibaldi (551), Italian aircraft carrier, 1st through deck aviation ship ever built for the Italian Navy, and 1st Italian ship built to operate fixed wing aircraft.
2003 - Launch of Optus (and Defence) C1, Australian communications satellite.
2004 - Cassini–Huygens, flagship-class NASA-ESA-ASI spacecraft sent to the Saturn system, flies by the moon Phoebe, 1st opportunity for close-up studies of this moon of Saturn.
2008 - 1st flight of The Lockheed Martin F-35B Lightning II, STOVL variant of the single-seat, single-engine, 5th generation multirole fighter
2010 - Death of William H. 'Bill' Holloman III, WWII Fighter pilot within the 'Tuskegee Airmen', Commercial pilot who returned to service for the Korean and Vietnam war, becoming the 1st black helicopter pilot in the Air Force.
2013 - Launch of Shenzhou 10, Chinese space flight to the Tiangong-1 space station.