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Accidents And Incidents Involving The JAS 39 Gripen
The JAS 39 Gripen is a fighter aircraft manufactured by the Swedish aerospace company Saab. Eight Gripens were destroyed in crashes, two of them before the delivery to the Swedish Air Force. These aircraft included one prototype, one production aircraft and three in service with the Swedish Air Force. Two Gripens in service with the Hungarian Air Force, and one in service with the Royal Thai Air Force, were also destroyed in crashes. In addition, one aircraft was lost in a ground accident during an engine test, for a total of nine hull losses. Crashes during testing February 1989 On 2 February 1989, the first prototype JAS 39-1 crashed on its sixth flight, when attempting to land in Linköping. The accident was filmed in a now-famous recording by a crew from Sveriges Television's news program ''Aktuellt''.. The pilot, Lars Rådeström, remained in the tumbling aircraft, and escaped with a fractured elbow and some minor injuries. The crash was the result of pilot-induced oscil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockholm Water Festival
The Stockholm Water Festival ( sv, Stockholms vattenfestival) was an annual street festival held in Stockholm, Sweden, in August from 1991 to 1999. The festival featured many activities in central Stockholm, but was eventually cancelled after the 1999 festival due to lack of funds. During the Stockholm Water Festival of 1993, a JAS 39 Gripen aircraft crashed at the island of Långholmen Långholmen is an island between two other islands, Södermalm and Kungsholmen, in central Stockholm, Sweden. This island can be reached via two bridges; Pålsundsbron in the east and Långholmsbron in the west. Långholmen is a popular spo ... in central Stockholm during a display of the new aircraft. Despite the crash occurring near thousands of spectators, only one person on the ground was injured.A woman was hospitalized for three weeks for burns"Coping with a Credibility Crisis: The Stockholm JAS Fighter Crash of 1993", p. 27. Swedish National Defence College. Retrieved 23 January 2012. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedish Accident Investigation Board
The Swedish Accident Investigation Authority ( sv, Statens haverikommission, or SHK, in English formerly the Swedish Accident Investigation Board) is a Swedish government agency tasked with investigating all types of serious civil or military accidents that can occur on land, on the sea or in the air. Incidents are also to be investigated if there was a serious risk of an accident. Its headquarters are in Stockholm. Directors General Directors General: *1978-07-01 – 1987-06-30 – Göran Steen *1987-07-01 – 1997-05-29 – Olof Forssberg *1997-05-30 – 1997-06-08 – S-E Sigfridsson (acting) *1997-06-09 – 2002-01-06 – Ann-Louise Eksborg *2002-01-07 – 2004-01-31 – Lena Svenaeus *2004-02-01 – 2004-05-31 – Carin Hellner (acting) *2004-04-01 – 2011-04-17 – Åsa Kastman Heuman *2011-04-18 – 2020-05-01 – Hans Ytterberg *2020-05-01 – present – John Ahlberk Notable investigations * Scandinavian Airlines Flight 751 (1991) * M/S ''Estonia'' (1994) * Falster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life Raft
A lifeboat or liferaft is a small, rigid or inflatable boat carried for emergency evacuation in the event of a disaster aboard a ship. Lifeboat drills are required by law on larger commercial ships. Rafts ( liferafts) are also used. In the military, a lifeboat may double as a whaleboat, dinghy, or gig. The ship's tenders of cruise ships often double as lifeboats. Recreational sailors usually carry inflatable liferafts, though a few prefer small proactive lifeboats that are harder to sink and can be sailed to safety. Inflatable lifeboats may be equipped with auto-inflation (carbon dioxide or nitrogen) canisters or mechanical pumps. A quick release and pressure release mechanism is fitted on ships so that the canister or pump automatically inflates the lifeboat, and the lifeboat breaks free of the sinking vessel. Commercial aircraft are also required to carry auto-inflating liferafts in case of an emergency water landing; offshore oil platforms also have liferafts. Ship-launc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G-force
The gravitational force equivalent, or, more commonly, g-force, is a measurement of the type of force per unit mass – typically acceleration – that causes a perception of weight, with a g-force of 1 g (not gram in mass measurement) equal to the conventional value of gravitational acceleration on Earth, ''g'', of about . Since g-forces indirectly produce weight, any g-force can be described as a "weight per unit mass" (see the synonym specific weight). When the g-force is produced by the surface of one object being pushed by the surface of another object, the reaction force to this push produces an equal and opposite weight for every unit of each object's mass. The types of forces involved are transmitted through objects by interior mechanical stresses. Gravitational acceleration (except certain electromagnetic force influences) is the cause of an object's acceleration in relation to free fall. The g-force experienced by an object is due to the vector sum of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kapten
''Kapten'' ( en, Captain in the Swedish Army/Air Force, ''Lieutenant'' in the Navy) is a company grade officer rank. In the army/airforce, it ranks above lieutenant and below major. In the navy, it ranks above sub-lieutenant and below lieutenant commander. It is equivalent to the specialist officers rank of ''förvaltare''. The rank has been used in Sweden since the Middle Ages. Army/Air Force/Navy ''Kapten'' (captain) is a rank in the Swedish Army, Swedish Air Force and in the Swedish Navy (Coastal Artillery 1902–2000, Amphibious Corps 2000–present). History A ''kapten'' (captain) usually commanded an infantry company or an artillery battery. The name appeared quite early in the Middle Ages and then applied to the highest commander in an area, a city etc. With the standing armies, which began to be established in the latter half of the 15th century, it was the name of the commander of a unit in both the infantry and the cavalry, which unit was first called company, then '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wake Vortex
Wake turbulence is a disturbance in the atmosphere that forms behind an aircraft as it passes through the air. It includes variety of elements, the most significant of which are wingtip vortices and jetwash. Jetwash refers to the rapidly moving gases expelled from a jet engine; it is extremely turbulent but of short duration. Wingtip vortices, however, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft. It is therefore not true turbulence in the aerodynamic sense, as true turbulence would be chaotic. Instead, it refers to the similarity to atmospheric turbulence as experienced by an aircraft flying through this region of disturbed air. Wingtip vortices occur when a wing is generating lift. Air from below the wing is drawn around the wingtip into the region above the wing by the lesser amount of pressure above the wing, causing a vortex to trail from each wingtip. The strength of wingtip vortices is determined primarily by the we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dogfight
A dogfight, or dog fight, is an aerial battle between fighter aircraft conducted at close range. Dogfighting first occurred in Mexico in 1913, shortly after the invention of the airplane. Until at least 1992, it was a component in every major war, though with steadily declining frequency. Since then, longer-range weapons have made dogfighting largely obsolete. Modern terminology for air-to-air combat is air combat maneuvering (ACM), which refers to tactical situations requiring the use of individual basic fighter maneuvers (BFM) to attack or evade one or more opponents. This differs from aerial warfare, which deals with the strategy involved in planning and executing various missions. Etymology The term ''dogfight'' has been used for centuries to describe a melee: a fierce, fast-paced close quarters battle between two or more opponents. The term gained popularity during World War II, although its origin in air combat can be traced to the latter years of World War I. One o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vänern
Vänern ( , also , ) is the largest lake in Sweden, the largest lake in the European Union and the third-largest lake of all Europe after Ladoga and Onega in Russia. It is located in the provinces of Västergötland, Dalsland, and Värmland in the southwest of the country. With its surface located at with a maximum depth of , the lowest point of the Vänern basin is at below sea level. The average depth is at a more modest , which means that the average point of the lake floor remains above sea level. Vänern drains into Göta älv towards Gothenburg and the Kattegat tributary of the Atlantic Ocean. It is the only one of the ten largest lakes in Sweden not to drain on the country's eastern coastline. Due to the construction of Göta Canal in the 19th century, there is an upstream water path to Vättern and the east coast from Vänern. The main inflow of water comes from Klarälven entering Vänern near Karlstad with its source in Trøndelag in Norway. History The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skaraborg Wing
Skaraborg Wing ( sv, Skaraborgs flygflottilj), also F 7 Såtenäs, or simply F 7, is a Swedish Air Force wing with the main base located near Lidköping in south-central Sweden. History The decision to set up the air wing was made in 1936, but disagreements in choosing a location delayed the commissioning. The Såtenäs estate was chosen for its good location and close proximity to suitable target ranges, and was purchased for 685,000 Swedish krona in 1938. The first squadrons were set up with B 16A Caproni purchased from Italy at the start of World War II. These wooden framed aircraft were not suitable for the Nordic climate and soon got the nickname "flying coffins". They were replaced in 1941 by the Swedish B 17A that served throughout the war. In 1946, the three bomber squadrons were converted to attack squadrons with the introduction of A 21, although for a brief number of years between 1948–1951, B 18 medium bombers were transferred from the Västmanland Wing (F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Test Pilot
A test pilot is an aircraft pilot with additional training to fly and evaluate experimental, newly produced and modified aircraft with specific maneuvers, known as flight test techniques.Stinton, Darrol. ''Flying Qualities and Flight Testing of the Airplane.'' American Institute of Aeronautics and Astronautics, Inc., 1996, p. 265 History Test flying as a systematic activity started during the First World War, at the Royal Aircraft Establishment (RAE) in the United Kingdom. An "Experimental Flight" was formed at the Central Flying School. During the 1920s, test flying was further developed by the RAE in the UK, and by the National Advisory Committee for Aeronautics (NACA) in the United States. In the 1950s, NACA was transformed into the National Aeronautics and Space Administration, or NASA. During these years, as work was done into aircraft stability and handling qualities, test flying evolved towards a more qualitative scientific profession. In the 1950s, test pilots we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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