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The Aviation Portal

A Boeing 747 in 1978 operated by Pan Am

Aviation includes the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships.

Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Clément Ader built the "Ader Éole" in France and made an uncontrolled, powered hop in 1890. This is the first powered aircraft, although it did not achieve controlled flight. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. (Full article...)

Selected article

Microburst schematic from NASA. Note the downward motion of the air until it hits ground level, then spreads outward in all directions. The wind regime in a microburst is completely opposite to a tornado.
Microburst schematic from NASA. Note the downward motion of the air until it hits ground level, then spreads outward in all directions. The wind regime in a microburst is completely opposite to a tornado.
Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with horizontal wind shear seen across weather fronts and near the coast, and vertical shear typically near the surface, though also at higher levels in the atmosphere near upper level jets and frontal zones aloft.

Wind shear itself is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, weather fronts, areas of locally higher low level winds referred to as low level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has a significant effect during take-off and landing of aircraft due to their effects on steering of the aircraft, and was a significant cause of aircraft accidents involving large loss of life within the United States.

Sound movement through the atmosphere is affected by wind shear, which can bend the wave front, causing sounds to be heard where they normally would not, or vice versa. Strong vertical wind shear within the troposphere also inhibits tropical cyclone development, but helps to organize individual thunderstorms into living longer life cycles which can then produce severe weather. The thermal wind concept explains with how differences in wind speed with height are dependent on horizontal temperature differences, and explains the existence of the jet stream. (Full article...)

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A Polish Yakovlev Yak-18; Góraszka Air Picnic 2008

Did you know

...that Swedish adventurer Saloman Andrée died in 1897 while trying to reach the geographic North Pole by hot-air balloon?

...that the Battle of Britain Memorial Flight contains the world's oldest airworthy survivor of the Battle of Britain, alongside ten other historic aircraft - two of which fought over Normandy on D-Day? ... that Coast Aero Center and Norving were the first airlines with scheduled services at Geilo Airport, Dagali located in Hol, Norway?

More Did you know facts

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The following are images from various aviation-related articles on Wikipedia.

In the news

Wikinews Aviation portal
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Associated Wikimedia

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Selected biography

Sophie Blanchard
Sophie Blanchard (25 March 1778 – 6 July 1819) was a French aeronaut and the wife of ballooning pioneer Jean-Pierre Blanchard. Blanchard was the first woman to work as a professional balloonist, and after her husband's death she continued ballooning, making more than 60 ascents. Known throughout Europe for her ballooning exploits, Blanchard entertained Napoleon Bonaparte, who promoted her to the role of "Aeronaut of the Official Festivals", replacing André-Jacques Garnerin. On the restoration of the monarchy in 1814 she performed for Louis XVIII, who named her "Official Aeronaut of the Restoration".

Ballooning was a risky business for the pioneers. Blanchard lost consciousness on a few occasions, endured freezing temperatures and almost drowned when her balloon crashed in a marsh. In 1819, she became the first woman to be killed in an aviation accident when, during an exhibition in the Tivoli Gardens in Paris, she launched fireworks that ignited the gas in her balloon. Her craft crashed on the roof of a house and she fell to her death. She is commonly referred to as Madame Blanchard and is also known by many combinations of her maiden and married names, including Madeleine-Sophie Blanchard, Marie Madeleine-Sophie Blanchard, Marie Sophie Armant and Madeleine-Sophie Armant Blanchard.

Selected Aircraft

The Pregnant Guppy was a large, wide-bodied cargo aircraft built in the USA and used for ferrying outsized cargo items, most notably NASA's components of the Apollo moon program. The Pregnant Guppy was the first of the Guppy line of aircraft produced by Aero Spacelines, Inc. The design also inspired similar designs such as the jet-powered Airbus Beluga, and the Boeing 747 LCF designed to deliver Boeing 787 parts.

  • Span:141 feet, 3 inches.
  • Length: 127 feet.
  • Height: 31 feet, 3 inches.
  • Engines: 4 3500hp P&W R-4360.
  • Cruising Speed: 250 mph
  • First Flight:September 19, 1962
  • Number built: 1
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Today in Aviation

March 19

  • 2012 – A Ecuador Air Force Embraer A-29B crashed on a training flight near Manta Air Base, Ecuador. The two crew ejected safely.
  • 2010 – A Turkish Army TAI/AgustaWestland T-129 (registration CSX81723) helicopter prototype lost its tail rotor at 15,000 ft (4,600 m). height at 16:30. Two people on board survived.
  • 2009 – Quito B200 King Air crash: A Beechcraft B200 King Air of the Ecuadorian Air Force crashes at Guápulo while attempting to land at Mariscal Sucre International Airport in thick fog, killing all five people on board and a further two on the ground.
  • 2007 – Airbus A380 makes first flights to the United States, with one touching down in New York at John F. Kennedy International Airport and another in California at Los Angeles International Airport.
  • 2003 – MH-53M Pave Low 67-14993 of 20th SOS carrying special forces crashes in southern Iraq. No one is killed. The craft was later destroyed to prevent capture.[5]
  • 2001 – Comair Flight 5054, an Embraer EMB 120 Brasilia, experiences severe atmospheric icing in flight near West Palm Beach, Florida. After a rapid loss of altitude, the crew regains control of the aircraft and makes an emergency landing at West Palm Beach Airport without injury to any of the 27 people on board. The plane suffers permanent deformation of its stabilizer and elevator.
  • 1990 – An McDonnell-Douglas F-15 Eagle from the 3rd Wing stationed at Elmendorf AFB, Alaska accidentally fired an AIM-9M Sidewinder missile at another F-15. The damaged aircraft was able to make an emergency landing; it was subsequently repaired and returned to service.
  • 1982 – Boeing Boeing KC-135A-BN Stratotanker, 58-0031, assigned to the 108th Air Refueling Squadron, 126th Air Refueling Wing, Illinois Air National Guard, crashed near Greenwood, Illinois. The KC-135 was returning from K.I. Sawyer AFB, Michigan to its home base at Chicago O'Hare International Airport when an explosion occurred at 13,700 feet due to an overheated fuel pump. All four crew members and 23 passengers in the KC-135 were killed.
  • 1972 – EgyptAir Flight 763, a Douglas DC-9, crashes on approach to Aden International Airport, killing all 30 passengers and crew.
  • 1969 – The first scheduled jet air service inside the Arctic Circle begins as Nordair inaugurates a weekly return service between Montreal, Canada and Resolution Bay, Cornwallis Island, Canada.
  • 1965 – Final Hawker Siddeley P.1127 prototype (of six), XP984, first with new swept wing with leading edge extensions and steel cold nozzles, first flown in October 1963, is damaged in a forced landing at Thorney Island. Repaired.
  • 1964 – Geraldine Mock, in a Cessna 180, becomes the first woman to fly around the world.
  • 1961 – Eleventh Lockheed U-2A, 56-6684, Article 351, delivered to the CIA 18 May 1956, modified to U-2C by July 1959; returning from a night celestial nav training sortie, crashes on landing at Taoyuan Air Base, Taiwan, killing Republic Of China Air Force pilot Chih Yao Hua. During a touch-and-go landing, he applied power but lost control, the aircraft veering left, crashing and exploding. Unit was the CIA's Detachment H, ROCAF 35th Squadron.
  • 1956 – Fire at Dorval destroyed 426 Squadron’s hangars forcing 426 to relocate to Trenton.
  • 1954 – A USAF Fairchild C-119F-FA Flying Boxcar, 51-7993, c/n 10732, of the 774th Troop Carrier Squadron, Ardmore Air Force Base, Oklahoma, en route from Maxwell Air Force Base, Alabama, to Mitchel Air Force Base, Long Island, New York, crashes into a rain-swept cornfield 19 miles S of Annapolis, Maryland, killing all 18 on board. It had departed Bolling Air Force Base, Washington, D.C., after refueling at 2212 hrs. A watch found in the wreckage had stopped at 2229 hrs. A spokesman at Bolling said that there were twelve passengers and six crewmen aboard. There were 11 Air Force personnel, five U.S. Navy, and one Marine on board. Witnesses reported that the aircraft was on fire before the crash and appeared to have exploded. The plane grazed the edge of a wooded area just off Maryland Route 2 before it impacted. Twisted wreckage and bodies were strewn over a ten-acre area. A heavy rain aided firemen in preventing the fire from getting out of hand. A detachment of sailors and Marines from the U. S. Naval Academy at Annapolis stood guard over the area as a group of investigators from Andrews Air Force Base, Maryland, examined the wreckage for clues to the cause of the tragedy.
  • 1946 – Col. George Vernon Holloman, (1902–1946), a native of Rich Square, North Carolina, aviation instrument inventor and early experimenter with guided missiles, is killed in a Boeing B-17 Flying Fortress accident on Formosa, while en route from China to the Philippines. Holloman had received the DFC for conducting the first instrument-only landing of an aircraft. Alamogordo Army Air Base, New Mexico, renamed Holloman AFB, 13 January 1948.
  • 1921 – The Douglas Cloudster broke the Pacific Coast altitude record by climbing 19,160 feet. The Cloudster was the first Douglas product. It was also the first airplane in history to airlift a useful load exceeding its own weight.
  • 1918 – U. S. airplanes in France make the first operational flights.
  • 1912 – The first of the U. S. Signal Corps Scout series capable of meeting a specification issued February 8, 1912, the S. C. No.8 is delivered to Augusta, Georgia by Curtiss pilot Charles F. Walsh. It finally passes all tests at College Park, Maryland in May with Lincoln Beachey at the controls.
  • 1909 – The International Aero and Motor-Boat Exhibition opens in London. Among the exhibits is a Wright airplane for sale at $7,000.

References

  1. ^ Marcus, Jonathan, "Libya: French Plane Fires on Military Vehicle," BBC News, 19 March 2011, 15:57 ET
  2. ^ "Libyan Private and State Media Slant Protest Coverage". BBC News. 17 February 2011. Retrieved 28 March 2011.
  3. ^ Rayment, Sean, "Libya: Moment a Rebel Jet Crashed to Earth in Flames," The Daily Telegraph, 19 March 2011.
  4. ^ "Gaddafi Forces Encroaching on Benghazi," Al Jazeera, 19 March 2011.
  5. ^ "H53 History" (PDF). Retrieved 2010-07-15.
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