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The Aviation Portal

A Boeing 747 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 craft 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. 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

The air flow from the wing of this agricultural plane is made visible by a technique that uses colored smoke rising from the ground. The swirl at the wingtip traces the aircraft's wake vortex, which exerts a powerful influence on the flow field behind the plane.
The air flow from the wing of this agricultural plane is made visible by a technique that uses colored smoke rising from the ground. The swirl at the wingtip traces the aircraft's wake vortex, which exerts a powerful influence on the flow field behind the plane.
Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Understanding the motion of air (often called a flow field) around an object enables the calculation of forces and moments acting on the object. Typical properties calculated for a flow field include velocity, pressure, density and temperature as a function of position and time. By defining a control volume around the flow field, equations for the conservation of mass, momentum, and energy can be defined and used to solve for the properties. The use of aerodynamics through mathematical analysis, empirical approximation and wind tunnel experimentation form the scientific basis for heavier-than-air flight.

External aerodynamics is the study of flow around solid objects of various shapes. Evaluating the lift and drag on an airplane, the shock waves that form in front of the nose of a rocket is an example of external aerodynamics. Internal aerodynamics is the study of flow through passages in solid objects. For instance, internal aerodynamics encompasses the study of the airflow through a jet engine.

The ratio of the problem's characteristic flow speed to the speed of sound comprises a second classification of aerodynamic problems. A problem is called subsonic if all the speeds in the problem are less than the speed of sound, transonic if speeds both below and above the speed of sound are present (normally when the characteristic speed is approximately the speed of sound), supersonic when the characteristic flow speed is greater than the speed of sound, and hypersonic when the flow speed is much greater than the speed of sound. Aerodynamicists disagree over the precise definition of hypersonic flow; minimum Mach numbers for hypersonic flow range from 3 to 12. Most aerodynamicists use numbers between 5 and 8. (Full article...)

Selected image

USAF aircraft of the 335th Fighter Squadron (F-16, F-15C and F-15E) fly over Kuwaiti oil fires, set by the retreating Iraqi army during Operation Desert Storm in 1991.

Did you know

...that a Fairchild C-119 Flying Boxcar was used in the 2004 film Flight of the Phoenix? ...that Pepsi offered a Harrier fighter jet in their Pepsi Billion Dollar Sweepstakes game and the Pepsi Stuff game for people accumulating a certain number of points? ... that Soviet test pilot Vladimir Kokkinaki set twenty aviation world records?

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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Selected biography

AIR VICE-MARSHAL GEORGE JONES
Air Marshal Sir George Jones KBE, CB, DFC (18 October 1896 – 24 August 1992) was a senior commander in the Royal Australian Air Force (RAAF). He rose from being a private soldier in World War I to Air Marshal in 1948. He served as Chief of the Air Staff from 1942 to 1952, the longest continuous tenure of any RAAF chief. Jones was a surprise appointee to the Air Force’s top role, and his achievements in the position were coloured by a divisive relationship during World War II with his head of operations and nominal subordinate, Air Vice Marshal William Bostock.

Jones first saw action as an infantryman in the Gallipoli campaign of 1915, before transferring to the Australian Flying Corps the following year. Initially an air mechanic, he undertook flying training in 1917 and was posted to a fighter squadron in France, achieving seven victories to become an ace. After a short spell in civilian life following World War I, he joined the newly-formed RAAF in 1921, rising steadily through training and personnel commands prior to World War II.

He did not actively seek the position of Chief of the Air Staff before being appointed in 1942, and his conflict with Bostock—with whom he had been friends for 20 years—was partly the result of a divided command structure, which neither man had any direct role in shaping. After World War II Jones had overall responsibility for transforming what was then the world's fourth largest air force into a peacetime service that was also able to meet overseas commitments in Malaya and Korea. Following his retirement from the RAAF he continued to serve in the aircraft industry and later ran unsuccessfully for political office.

Selected Aircraft

The Avro Lancaster was a British four-engine Second World War bomber aircraft made initially by Avro for the British Royal Air Force (RAF). It first saw active service in 1942, and together with the Handley-Page Halifax it was one of the main heavy bombers of the RAF, the RCAF and squadrons from other Commonwealth and European countries serving within RAF Bomber Command. The "Lanc" or "Lankie," as it became affectionately known, became the most famous and most successful of the Second World War night bombers, "delivering 608,612 tons of bombs in 156,000 sorties." Although the Lancaster was primarily a night bomber, it excelled in many other roles including daylight precision bombing, and gained worldwide renown as the "Dam Buster" used in the 1943 Operation Chastise raids on Germany's Ruhr Valley dams.

  • Span: 102 ft (31.09 m)
  • Length: 69 ft 5 in (21.18 m)
  • Height: 19 ft 7 in (5.97 m)
  • Engines: 4× Rolls-Royce Merlin XX V12 engines, 1,280 hp (954 kW) each
  • Maximum Speed: 240 knots (280 mph, 450 km/h) at 15,000 ft (5,600 m)
  • First Flight: 8 January 1941
  • Number built: 7,377
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Today in Aviation

July 19

  • 2011 – A Royal Thai Army Sikorsky UH-60 Black Hawk helicopter crashed killing 9 people. The chopper had been sent out to recover five bodies of victims of another helicopter, a Bell UH-1 Iroquois, that had crashed two days before while looking for illegal loggers over the Tenasserim Hills in the area between Myanmar and Thailand near Phetchaburi. A third helicopter, a Bell 212, also crashed in the same area on Sunday 25 July a few miles further east close to the Kaeng Krachan reservoir killing three.
  • 2010 – A Philippine Air Force SIAI S-211 09005 crashed during a training flight in the Philippines. The crew ejected safely.
  • 2009 – Afghanistan Mil Mi-8 crash: A civilian Mil Mi-8 helicopter chartered by NATO crashed at Kandahar International Airport in southern Afghanistan killing 16 and injuring 5. The aircraft was not shot down, but rather apparently trying to take off.
  • 2009 – A Chinese Air Force Xian JH-7 (FBC-1 Flying Leopard) crashes near the Taonan tactical training base in Jilin province while on a joint counter-terrorism exercises with Russia resulting in the death of 2 crew.
  • 2005 – AH-64D Apache 02-5319 from 1–3rd Aviation Regiment crashes in Iraq, injuring the two pilots. Helicopter is written off.[1]
  • 2004 – (19-24) The 16th FAI World Precision Flying Championship in Herning, Denmark. Individual winners: Krzysztof Wieczorek (Poland) – 3Xtrim, 2. Petr Opat (Czech) – Cessna 152, 3. Wacław Wieczorek (Poland) – PZL Wilga 2000; team winners: 1. Poland, 2. Czech Republic, 3. France.
  • 2004 – near Basra, a British HC.1 Aérospatiale Puma XW221 of 33 RAF Squadron crashes, killing one crewman and injuring two others.[2]
  • 1994 – Alas Chiricanas Flight 00901, an Embraer EMB-110, explodes in mid-air over Panama, killing all 21 people on board. Investigators conclude that a suicide bomber caused the plane to explode, although motives and affiliation of the bomber remain unclear.
  • 1989 – United Airlines Flight 232, a McDonnell Douglas DC-10, suffers a complete hydraulic system failure over Iowa, United States after the tail-mounted engine disintegrates. The crew maintains partial control of the aircraft using differential throttle, bringing it to a crash landing on the runway of the Sioux City, Iowa airport. Of the 296 people on board, 111 die.
  • 1989 – A U.S. Navy McDonnell-Douglas F/A-18 Hornet from Cecil Field, NAS Jacksonville, Florida, loses a 950-pound training bomb over Waldo, Florida, in the afternoon. The ordnance narrowly misses home with four inside, bounces off tree, skips over a second home, and impacts in a field where the spotting charge explodes. No one is injured in the incident. Navy spokesman Bert Byers states that the pilot lost track of the bomb after it fell off the jet.
  • 1981 – The USS Guam, while operating 50 km SE of Morehead City, North Carolina (USA), a Sikorsky CH-53 Sea Stallion helicopter crashes into another CH-53 and a Bell UH-1N Twin Huey upon landing. Four crewmen die and 10 are injured.
  • 1967 – Piedmont Airlines Flight 22, a Boeing 727 departing from Asheville, North Carolina, crashes shortly after takeoff after a mid-air collision with a twin-engine Cessna 310 on instrument approach to Asheville; all 82 passengers and crew on both aircraft die.
  • 1962 – United Arab Airlines Flight 869 (1962), a de Havilland DH-106 Comet 4 C on an international scheduled flight from Hong Kong to Cairo via Bangkok, crashes into the Khao Yai mountain while descending to Bangkok; all 26 die.
  • 1961 – Aerolíneas Argentinas Flight 644, a Douglas DC-6, crashed a half hour after takeoff from Ministro Pistarini International Airport in Bueno Aires, Argentina. All 67 passengers and crew on board were killed.
  • 1960 – In the wake of the Congo Crisis, a Belgian Air Force (BAF) Fairchild C-119G Flying Boxcar, CP36, c/n 11083, crashes into a mountain in Rushengo near Goma after an engine caught fire. 41 died.
  • 1958 – The NATO Training Plan ended this date after having trained 5575 pilot and navigators from Euopean partners to wing standard.
  • 1947 – RAF Bristol Brigand TF.1, RH742, assigned to the A&AEE, piloted by F/L T. Morren, failed to pull out of firing pass during exercise in the Lyme Bay area off the Dorset coast, entered slow roll and lost speed while inverted, into spiral dive into sea, killing both crew. It was thought that one of the dive brakes may have failed. This was the first fatal accident in the type
  • 1945 – U. S. Army Air Forces B-29 Superfortresses strike Hitachi, Japan.
  • 1944 – 1,200+ 8th Air Force bombers bomb targets in SW Germany.
  • 1944 – Boeing B-17G Flying Fortress 42-102937 crashed at RAF Duxford, Cambridgeshire, United Kingdom when attempting to buzz the airfield at too low an altitude. The aircraft clipped a hangar and crashed into a barracks block killing all thirteen on board and one person on the ground.
  • 1943 – 500 allied air forces raid Rome during WW II.
  • 1943 – Soviet Air Forces fighter pilot Yekaterina Budanova, along with Lydia Litvyak, one of only two female aces in history, is shot down and killed in a dogfight with Messerschmitt Bf 109 s over Luhansk Oblast. Although her victory total is unclear, she is commonly credited with 11 kills.
  • 1937 – The official search for missing flyers Amelia Earhart and Fred Noonan was abandoned.
  • 1930 – Death of Frank Goldsborough in a crash in Vermont.
  • 1921 – USAAS pilot 1st Lt. Willard S. Clark is killed at Ellington Field, Texas, when his Orenco D enters a spin at low altitude and plunges to the ground. All aircraft manufactured in this batch are grounded.
  • 1920 – The Vickers R. 80 airship, designed in an innovative streamlined shape by company designer Barnes Wallis, makes its first flight.
  • 1918 – Seven Sopwith 2 F.1 Camels from the Royal Navy aircraft carrier Furious attack the Imperial German Navy airship base at Tondern, destroying the Zeppelins L 54 and L 60. It is the most successful attack by shipboard aircraft of World War I.
  • 1913 – First example of skywriting by Milton J Bryant over Seattle WA, in forming a business of aerial advertising.
  • 1912 – Winnipeg Manitoba was the sight of the first mile-high altitude flight in Canada, 6000 ft.
  • 1909 – Hubert Latham makes the first attempt to cross the English Channel. He flies 11.2 km (7 mi) from Calais in an Antoinette IV and lands in the water. He becomes the first aviator to be rescued from the English Channel when a French warship picks him up.
  • 1867 – James W. Butler and Edmund Edwards are awarded His Majesty's Patent 2115 for their delta wing jet design the Steam Dart.[3]
  • 1812, lamp gas used to fill a Montgolfière (Green).

References

  1. ^ "2002 USAF Serial Numbers". Retrieved 2010-02-17.
  2. ^ "Aircraft accident to Royal Air Force Puma XW221" (PDF). Ministry of Defence. 2004-07-19. Retrieved 2009-01-30.
  3. ^ http://www.flyingmachines.org/buted.html
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