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Portal:Aviation

Portal:Aviation


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A Boeing 747

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

Hot air balloon
Hot air balloon
The hot air balloon is the oldest successful human-carrying flight technology. On November 21, 1783, in Paris, France, the first manned flight was made by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes in a hot air balloon created by the Montgolfier brothers.

A hot air balloon consists of a bag called the envelope that is capable of containing heated air. Suspended beneath is the gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule) which carries the passengers and a source of heat. The heated air inside the envelope makes it buoyant since it has a lower density than the relatively cold air outside the envelope. Unlike gas balloons, the envelope does not have to be sealed at the bottom since the air near the bottom of the envelope is at the same pressure as the surrounding air. In today's sport balloons the envelope is generally made from nylon fabric and the mouth of the balloon (closest to the burner flame) is made from fire resistant material such as Nomex.

Recently, balloon envelopes have been made in all kinds of shapes, such as hot dogs, rocket ships, and the shapes of commercial products. Hot air balloons that can be propelled through the air rather than just being pushed along by the wind are known as airships or, more specifically, thermal airships. (Full article...)

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JF-17 at the IDEAS 2008 defence exhibition in Karachi, Pakistan
JF-17 at the IDEAS 2008 defence exhibition in Karachi, Pakistan
Credit: Paki90
JF-17 at the IDEAS 2008 defence exhibition in Karachi, Pakistan

Did you know

...that Chris Phatswe committed suicide by crashing his Air Botswana plane into two other planes belonging to the airline, effectively crippling operations? ..that Elm Farm Ollie in 1930 became the first cow to be milked while flying in an airplane? ... that Walter Borchers was one of three brothers, all three received the Knight's Cross of the Iron Cross during World War II?

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

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Selected biography

Frank Whittle speaking to employees of the Flight Propulsion Research Laboratory (now known as the NASA Glenn Research Center), USA, in 1946
Air Commodore Sir Frank Whittle (1 June 1907 – 9 August 1996) was a Royal Air Force officer and was one of the inventors of jet propulsion. By the end of the war, Whittle's efforts resulted in engines that would lead the world in performance through the end of the decade.

Born in Earlsdon, Coventry, England on June 1, 1907, Whittle left Leamington College in 1923 to join the Royal Air Force (RAF). Through his early days as an Aircraft apprentice he maintained his interest in the Model Aircraft Society where he built replicas, the quality of which attracted the eye of his commanding officer, who was so impressed that he recommended Whittle for the Officer Training College at Cranwell in Lincolnshire in 1926, a rarity for a "commoner" in what was still a very class-based military structure. A requirement of the course was that each student had to produce a thesis for graduation. Whittle decided to write his thesis on future developments in aircraft design, in which he described what is today referred to as a motorjet.

Whittle and Hans von Ohain met after the war and initially Whittle was angry with him as he felt Ohain had stolen his ideas. Ohain eventually convinced him that his work was independent and after that point the two became good friends.

Selected Aircraft

The Boeing 777 is a long-range, wide-body twin-engine jet airliner manufactured by Boeing Commercial Airplanes. It is the world's largest twinjet and is commonly referred to as the "Triple Seven". The aircraft has seating for over 300 passengers and has a range from 5,235 to 9,380 nautical miles (9,695 to 17,372 km) depending on model. Its distinguishing features include the largest diameter turbofan engines of any aircraft, six wheels on each main landing gear, a circular fuselage cross-section, and blade-shaped tail cone. Developed in consultation with eight major airlines, the 777 was designed to replace older wide-body airliners and bridge the capacity difference between the 767 and 747. As Boeing's first fly-by-wire airliner, it has computer mediated controls; it is also the first entirely computer-designed commercial aircraft.

The 777 is produced in two fuselage lengths. The original 777-200 model first entered service in 1995, followed by the extended range 777-200ER in 1997; the stretched 777-300, which is 33.3 ft (10.1 m) longer, began service in 1998. The longer-range 777-300ER and 777-200LR variants entered service in 2004 and 2006, respectively, while a freighter version, the 777F, debuted in 2008. Both longer-range versions and the freighter feature General Electric GE90 engines, as well as extended and raked wingtips. Other models are equipped with either the GE90, Pratt & Whitney PW4000, or Rolls-Royce Trent 800 engines. The 777-200LR ranks as the world's longest-range airliner and holds the record for longest distance flown by an unrefuelled commercial aircraft, with the demonstrated capability to fly more than halfway around the world.

United Airlines first placed the 777 into commercial airline service in 1995. As of August 2023, 1,716 777s have been delivered. The most common variant used worldwide is the 777-300ER, with 832 aircraft delivered, and Emirates operates the largest 777 fleet, with 134 aircraft (as of May 2019). The airliner has had 8 hull-loss accidents, with 541 fatalities. The most deadly incident was Malaysia Airlines Flight 17, in which a 777-200ER carrying 298 people was shot down by a missile over Ukraine on 17 July 2014.

Through the 21st century, the 777 has emerged as one of its manufacturer's best-selling models. Because of rising fuel costs, airlines have acquired the type as a comparatively fuel-efficient alternative to other wide-body jets and have increasingly used the aircraft on long-haul, transoceanic routes. Direct market competitors include the Airbus A330-300, the A340 and A350 XWB.

  • Span: 212 ft 7 in (64.8 m)
  • Length: 242 ft 4 in (73.9 m)
  • Height: 61 ft 5 in (18.7 m)
  • Engines: 2 X GE 90-115B
  • Cruising speed: 0.84 Mach (555 mph, 892 km/h, 481 kn) at 35,000 ft (11,000 m) cruise altitude
  • First flight: 12 June 1994
  • Number built: 1,716 as of August 2023 (based on deliveries)
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Today in Aviation

April 26

  • 2009 – Douglas DC-3 C N136FS of Four Star Air Cargo is destroyed by fire at Luis Muñoz Marín International Airport, Puerto Rico.
  • 2009 – The third flying prototype of the Sukhoi Su-35, 04 (?), is destroyed during a high-speed taxi test just before its first flight at Komsomolsk-na-Amur/Dzemgi Airfield. Aircraft apparently ran off end of runway, hits obstacle, burns, destroying it. Test pilot Eugene Frolov ejects safely and is unhurt. This was actually the fourth prototype, but 03 is purely for ground testing.
  • 2004 – OH-58D(I) Kiowa 91-0567 from P Troop, 4th Squadron, 2d ACR made emergency landing at Kut after engine problem and burned out. Both crewmembers safe.
  • 2001 – Pilot Sean Loutitt lands in Chile after a daring two-day flight to the South Pole in a Twin Otter to rescue an ailing U. S. scientist. It was the first rescue of its kind in the harsh Antarctic winter.
  • 1995 – A Mikoyan MiG-29 sets a new FAI class C-1 h world altitude record of 90,092 ft.
  • 1994China Airlines Flight 140, an Airbus A300, crashes while landing at Nagoya, Japan as a result of pilot error. 264 people of the 271 on board died.
  • 1993Indian Airlines Flight 491, a Boeing 737, strikes a large vehicle on a road just outside Aurangabad airport and crashes subsequently, killing 55 of the 118 people on board.
  • 1993 – Launch: Space Shuttle Columbia STS-55 at 10:50 am EDT. Mission highlights: Spacelab-D2, Germany funded mission.
  • 1987 – The first full-scale prototype of Saab’s hi-tech JAS 39 Gripen fighter is unveiled in Sweden.
  • 1984 – United States Air Force Lt. Gen. Robert M. Bond (1929–1984), Vice Commander of Air Force Systems Command, is killed in a high-speed ejection from a Mikoyan-Gurevich MiG-23 of the 4477th Test and Evaluation Squadron, out of Groom Lake, Nevada at 1018 hrs., which was initially reported to be an F-117A Stealth fighter. The MiG impacted on Little Skull Mountain on the remote Nellis AFB range in a high-speed 60-degree dive. Following this accident, officers of General rank were prohibited from test flying. The Air Force is also forced to admit that it is flying Soviet bloc aircraft.
  • 1982 – A CAAC Trident 2E crashes into a mountain in Guilin, killing all 112 people on board. The Chinese media report that the plane, which had taken off in Guangzhou, crashed when the pilot attempted to fight off an armed hijacker.
  • 1982 – SFC Clifford Wilson Strickland is picked up by an Lockheed MC-130 Combat Talon of the 7th Special Operations Squadron at CFB Lahr, Germany, during Flintlock 82 exercise, using the Fulton STARS recovery system, but falls to his death reportedly due to faulty equipment in 1400 hrs accident. This will be the last ever attempt to utilize the Skyhook system.
  • 1978 – Possibly due to engine trouble, a United States Navy P-3 Orion patrol aircraft (BuNo 152724) of Patrol Squadron 23 (VP-23) crashes in the Atlantic Ocean near Naval Air Facility Lajes in Lajes in the Azores, killing the crew of seven.
  • 1954 – Northrop N-69 Snark, GM-11111, launches from Cape Canaveral, Florida, crashes 3,000 yards from launcher, just after the booster rockets separate, due to loss of electrical power.
  • 1949 – Flying continuously in their Aeronca Chief light aircraft for 1,008 hours, and one minute (just over six weeks). Dick Reider and Bill Barris set a world endurance record for a flight-refueled aircraft in the U. S They received food and fuel handed up from a speeding vehicle four times a day.
  • 1945 – During a training exercise, a Boeing B-17G Flying Fortress 43-38859 collided in mid-air with another B-17G 44-8687. #859 crash-landed and was repaired. #687 was destroyed, with only 2 crew escaping and surviving the incident.
  • 1945 – (Overnight) – 563 bombers of the Soviet Air Force’s 18th Air Army strike Berlin.
  • 1943 – The British employ Ground Grocer, the first device capable of jamming the airborne Lichtenstein radar employed by German night fighters. Ground-based, Ground Grocer’s range is limited by the curvature of the earth, placing most German night fighter operations below its coverage.
  • 1937 – Four Heinkel He.111 and 23 Junkers Ju 52 bombers of the German Condor Legion attack Guernica, Spain, in the first example of “carpet bombing” to demoralize a civilian population. Over three hours, the bombers drop 45,000 kg (99,207 lbs) of bombs, destroying 70% of the city and killing at least 1,000, and perhaps as many as a third (over 1,600 people) of its inhabitants. Messerschmitt Bf 109 and Heinkel He 51 fighters also strafe the town to kill any inhabitants they see. The town burns for three days. The damage shocks Spanish Nationalist military leaders, and the Condor Legion engages in no further area bombing during the Spanish Civil War.
  • 1924 – Imperial Airways makes its first scheduled flight, from Croydon Aerodrome to Paris, using a de Havilland DH.34.
  • 1917 – The Pacific Aero Products Company is renamed the Boeing Airplane Company.
  • 1896 – Ernst Udet, WWI pilot and film actor, Luftwaffe officer, was born (d. 1941). Udet was the second-highest scoring German flying ace of World War I. He was one of the youngest aces and was the highest scoring German ace to survive the war (at the age of 22). His 62 victories were second only to Manfred von Richthofen, his commander in the Flying Circus.

References

  1. "5 Die in Helicopter Crash in Romania". news.yahoo.com. AP. April 26, 2012. Retrieved December 2, 2012.



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