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Tailstrike
In aviation, a tailstrike or tail strike occurs when the tail or empennage of an aircraft strikes the ground or other stationary object. This can happen with a fixed-wing aircraft with tricycle undercarriage, in both takeoff where the pilot rotates the nose up too rapidly, or in landing where the pilot raises the nose too sharply during final approach, often in attempting to land too near the runway threshold. It can also happen during helicopter operations close to the ground, when the tail inadvertently strikes an obstacle. A minor tailstrike incident may not be dangerous in itself, but the aircraft may still be weakened and must be thoroughly inspected and repaired if a more disastrous accident is to be avoided later in its operating life. Protection measures Fixed-wing aircraft with a conventional tail and tricycle undercarriage are vulnerable to tailstrike. Those which require a high angle of attack on takeoff or landing are especially so. They may be fitted with a protect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emirates Flight 407
Emirates Flight 407 was a scheduled international passenger flight operated by Emirates from Auckland to Dubai with a stopover in Melbourne, operated by an Airbus A340-500 aircraft. On 20 March 2009, the flight failed to take off properly at Melbourne Airport, hitting several structures at the end of the runway before climbing and then returning to the airport for a safe landing. Although no fatalities or injuries resulted, damage to the aircraft was severe enough for the event to be classified by Australian Transport Safety Bureau as an "accident". It was subsequently determined that a data-entry error resulted in insufficient engine thrust during take off. It has been described "as close as we have ever come to a major aviation catastrophe in Australia" by aviation officials. Chronology The scheduled flight departed from Melbourne as planned at 22:30 using runway 16, which was long. The captain ordered the first officer to rotate before the end of the runway, travelling at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Air Lines Flight 123
Japan Air Lines Flight 123 (JAL123) () was a scheduled domestic Japan Air Lines , also known as JAL (''Jaru'') or , is an international airline and Japan's flag carrier and largest airline as of 2021 and 2022, headquartered in Shinagawa, Tokyo. Its main hubs are Tokyo's Narita International Airport and Haneda Airport, as w ... passenger flight from Haneda Airport in Tokyo to Itami Airport, Itami International Airport in Osaka. On August 12, 1985, the Boeing 747SR operating this flight suffered a sudden decompression 12 minutes into the flight, and crashed in the area of Mount Takamagahara, Ueno, Gunma, Ueno, Gunma Prefecture, from Tokyo 32 minutes later. The crash site was on Osutaka Ridge, near Mount Osutaka. Japan's Aircraft Accident Investigation Commission (AAIC) concluded, agreeing with investigators from the U.S. National Transportation Safety Board, that the rapid decompression was caused by a faulty repair by Boeing technicians after a tailstrike incident during a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air India Express Flight 611
Air India Express Flight 611 was an international flight from Tiruchirappalli, India, to Dubai, United Arab Emirates. On 11 October 2018, the Boeing 737-800, registration VT-AYD, operating the flight suffered a severe tail strike and crashed into the localizer antenna and perimeter wall, due to the captain's backrest collapsing on takeoff. The aircraft continued to fly towards the UAE. When it was nearing Oman, it was diverted to Mumbai, India, where it landed safely. Incident Conditions were good, and the captain choose to take off from Runway 27. ATC granted Flight 611 takeoff clearance at 00:49 hours. The thrust was set to 98% for takeoff, and as is standard procedure, the captain placed his hand on the thrust levers ready to pull them closed in case of a rejected takeoff. Once the aircraft had accelerated to , the backrest of the captain's seat suddenly collapsed. That caused him to inadvertently pull the thrust levers back, reducing thrust from 98% to 77%. The captain immed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East Airlines Flight 304
Metrojet Flight 9268 was an international chartered passenger flight, operated by Russian airline Kogalymavia (branded as Metrojet). On 31 October 2015, at 06:13 local time EST (04:13 UTC), an Airbus A321-231 operating the flight exploded above the northern Sinai Peninsula following its departure from Sharm El Sheikh International Airport, Egypt en route to Pulkovo Airport, Saint Petersburg, Russia. All 224 passengers and crew on board were killed. The cause of the crash was most likely an onboard explosive device as concluded by Russian investigators. Most of the people aboard the flight were tourists. There were 212 Russians, four Ukrainians, and one Belarusian passenger. There were also 7 crew members on board. Investigators believe that a bomb was put on the aircraft at Sharm El Sheikh, with the goal of causing airlines to suspend flights to that airport. Shortly after the crash, the Islamic State's Sinai Branch, previously known as Ansar Bait al-Maqdis, claimed respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concorde
The Aérospatiale/BAC Concorde () is a retired Franco-British supersonic airliner jointly developed and manufactured by Sud Aviation (later Aérospatiale) and the British Aircraft Corporation (BAC). Studies started in 1954, and France and the UK signed a treaty establishing the development project on 29 November 1962, as the programme cost was estimated at £70 million (£ in ). Construction of the six prototypes began in February 1965, and the first flight took off from Toulouse on 2 March 1969. The market was predicted for 350 aircraft, and the manufacturers received up to 100 option orders from many major airlines. On 9 October 1975, it received its French Certificate of Airworthiness, and from the UK CAA on 5 December. Concorde is a tailless aircraft design with a narrow fuselage permitting a 4-abreast seating for 92 to 128 passengers, an ogival delta wing and a droop nose for landing visibility. It is powered by four Rolls-Royce/Snecma Olympus 593 turbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenerife Airport Disaster
The Tenerife airport disaster occurred on March 27, 1977, when two Boeing 747 passenger jets collided on the runway at Los Rodeos Airport (now Tenerife North Airport) on the Spanish island of Tenerife. The collision occurred when KLM Flight 4805 initiated its takeoff run while Pan Am Flight 1736 was still on the runway. The impact and resulting fire killed everyone on board KLM 4805 and most of the occupants of Pan Am 1736, with only 61 survivors in the front section of the aircraft. With 583 fatalities, the disaster is the deadliest accident in aviation history. A bomb set off by the Canary Islands Independence Movement at Gran Canaria Airport had caused many flights to be diverted to Los Rodeos, including the two aircraft involved in the accident. The airport quickly became congested with parked airplanes blocking the only taxiway and forcing departing aircraft to taxi on the runway instead. Patches of thick fog were drifting across the airfield, so visibility was greatly r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond DA20
The Diamond DV20/DA20 Katana is an Austrian-designed two-seat general aviation light aircraft. Developed and manufactured by Diamond Aircraft, it was originally produced in Austria as the DV20. The DV20 shares many features from the earlier Diamond HK36 Super Dimona. It was introduced to service during 1993. During the 1990s, production of the type was commenced at a new facility in Canada in order to meet demand for the type within the North American market. The Canadian-produced aircraft are designated as the ''DA20''. It has been a relative success on the market, having sold in excess of 1,000 aircraft by 2008 and multiple improved variants of the DA20 have been developed. Additionally, it has been further developed into the four-seat Diamond DA40 Diamond Star. Development Origins In 1981, a new company, Hoffmann Flugzeugbau, was formed in Austria with the aim of becoming a major aircraft manufacturer for general aviation purposes.Sarsfield, Kate"A shining example." ''Fligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saab Draken
The Saab 35 Draken (; 'The Kite' or 'The Dragon') is a Swedish fighter-interceptor developed and manufactured by Svenska Aeroplan Aktiebolaget (SAAB) between 1955 and 1974. Development of the Saab 35 Draken started in 1948 as the Swedish air force future replacement for the then also in development Saab 29 Tunnan dayfighter and Saab 32B Lansen night fighter. It featured an innovative but unproven double delta wing, which led to the creation of a sub-scale test aircraft, the Saab 210, which was produced and flown to test this previously-unexplored aerodynamic feature. The full-scale production version entered service with frontline squadrons of the Swedish Air Force on 8 March 1960. It received the designation Flygplan 35 (Fpl 35; 'Aeroplane 35') and was produced in several variants and types, most commonly as a fighter type with the prefix ''J'' (J 35), standing for ''Jaktflygplan'' (Pursuit-aircraft), the Swedish term for fighter aircraft. The Saab 35 Draken is known for, am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angle Of Attack
In fluid dynamics, angle of attack (AOA, α, or \alpha) is the angle between a reference line on a body (often the chord line of an airfoil) and the vector representing the relative motion between the body and the fluid through which it is moving. Angle of attack is the angle between the body's reference line and the oncoming flow. This article focuses on the most common application, the angle of attack of a wing or airfoil moving through air. In aerodynamics, angle of attack specifies the angle between the chord line of the wing of a fixed-wing aircraft and the vector representing the relative motion between the aircraft and the atmosphere. Since a wing can have twist, a chord line of the whole wing may not be definable, so an alternate reference line is simply defined. Often, the chord line of the root of the wing is chosen as the reference line. Another choice is to use a horizontal line on the fuselage as the reference line (and also as the longitudinal axis). Some aut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation
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. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
