SZD 56 Diana
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SZD 56 Diana
The SZD-56 Diana is a Glider competition classes#15 metre Class, 15 metre Class Glider aircraft, glider originally designed by Bogumił Bereś at PZL#PZL-Bielsko, PZL-Bielsko. However, PZL Bielsko went bankrupt before it could be put into serial production. The rights to the design were taken over by a new entity, Diana Sailplanes, which developed the design further into the Diana 2. The Diana 2 first flew on 12 January 2005. Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011–12'', page 141. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X After two years of development, in 2018 a new design using a fuselage from Czech manufacturer KKB and a wing from Diana Sailplanes was introduced for the Glider competition classes#18 metre Class, 18 metre Class called the Diana 3. Design and development The Diana is a single-seat 15-metre class sailplane. It uses a mid-wing cantilever monoplane with a T-tail unit. It has an all composite carbon-aramid-epoxy ...
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WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ...
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Spar (aviation)
In a fixed-wing aircraft, the spar is often the main structural member of the wing, running spanwise at right angles (or thereabouts depending on wing sweep) to the fuselage. The spar carries flight loads and the weight of the wings while on the ground. Other structural and forming members such as ribs may be attached to the spar or spars, with stressed skin construction also sharing the loads where it is used. There may be more than one spar in a wing or none at all. Where a single spar carries most of the force, it is known as the main spar. Spars are also used in other aircraft aerofoil surfaces such as the tailplane and fin and serve a similar function, although the loads transmitted may be different from those of a wing spar. Spar loads The wing spar provides the majority of the weight support and dynamic load integrity of cantilever monoplanes, often coupled with the strength of the wing 'D' box itself. Together, these two structural components collectively provide the ...
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Electric Aircraft
An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing zero emissions and quieter flights. Electricity may be supplied by a variety of methods, the most common being batteries. Most have electric motors driving propellers or turbines. Crewed flights in an electrically powered airship go back to the 19th century, and to 1917 for a tethered helicopter. Electrically powered model aircraft have been flown at least since the 1970s, preceding the small unmanned aerial vehicles (UAV) or drones used today. Small UAS could be used for parcel deliveries, and larger ones for long-endurance applications: aerial imagery, surveillance, telecommunications. The first crewed free flight by an electrically powered aeroplane, the MB-E1, was made in 1973, and most crewed electric aircraft today are still only experimental prototypes. Between 2015 and 2016, Solar Impulse 2 completed a circ ...
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PZL Aircraft
PZL (''Państwowe Zakłady Lotnicze'' - State Aviation Works) was the main Polish aerospace manufacturer of the interwar period, and a brand of their aircraft. Based in Warsaw between 1928 and 1939, PZL introduced a variety of well-regarded aircraft, most notably the PZL P.11 fighter, the PZL.23 Karaś light bomber, and the PZL.37 Łoś medium bomber. In the post-war era, aerospace factories in Poland were initially run under the name WSK (Transport Equipment Manufacturing Plant), but returned to adopt PZL acronym in late 1950s. This was used as a common aircraft brand and later as a part of names of several Polish state-owned aerospace manufacturers referring to PZL traditions, and belonging to the ''Zjednoczenie Przemysłu Lotniczego i Silnikowego PZL'' - PZL Aircraft and Engine Industry Union. Among the better-known products during this period is the PZL TS-11 Iskra jet trainer and PZL-104 Wilga STOL utility aircraft. After the fall of communism in Poland in 1989, these ma ...
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1990s Polish Sailplanes
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as the ...
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List Of Gliders
This is a list of gliders/sailplanes of the world, (this reference lists all gliders with references, where available) Note: Any aircraft can glide for a short time, but gliders are designed to glide for longer. By nationality *List of American gliders *List of Argentine gliders * List of Australian gliders *List of Austrian gliders *List of Belgian gliders *List of Brazilian gliders *List of British gliders * List of Bulgarian gliders *List of Canadian gliders *List of Chinese gliders *List of Czechoslovak gliders *List of Danish gliders *List of Dutch gliders * List of Estonian gliders *List of Finnish gliders *List of French gliders *List of German gliders *List of Greek gliders *List of Hungarian gliders *List of Indian gliders *List of Iranian gliders *List of Irish gliders *List of Italian gliders *List of Japanese gliders *List of Latvian gliders *List of Lithuanian gliders *List of New Zealand gliders *List of Philippines gliders *List of Polish gliders *List of Portugu ...
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Schleicher ASG 29
The Schleicher ASG 29 is a German sailplane manufactured by Alexander Schleicher GmbH & Co since 2006. It can be flown as an 18 metre Class glider or as a 15 metre Class glider. The 'G' indicates a design by Michael Greiner. It is a refinement of the popular ASW-27 and for certification purposes it is designated the ASW-27-18. It has been replaced by the Schleicher AS 33. Development The ASG 29 has plain flaps and winglets. The structure is a complex composite of carbon, aramid and polyethylene Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging ( plastic bags, plastic films, geomembranes and containers including b ... fibre reinforced plastic. This permits a light structure with the strength to carry up to 170 liters (322 pounds) of water ballast, thus permitting the widest possible range of wing loadings for weak and strong soaring weather. The ...
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Schleicher ASW 27
The ASW 27 is a 15 metre Class glider built of modern fibre reinforced composites, which first flew in 1995 and was certified in 1997. The manufacturer of the ASW 27 is Alexander Schleicher GmbH & Co. The "W" indicates this is a design of the influential and prolific German designer Gerhard Waibel. Design and development The ASW 27 has plain flaps, winglets, a retractable undercarriage and a water ballast system. The ASW 27 superseded the ASW 20 in the manufacturer's production line. The structure is a complex composite of carbon, aramid and polyethylene Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging ( plastic bags, plastic films, geomembranes and containers including b ... fibre reinforced plastic. This permits a light structure with the strength to carry large amounts of water ballast, thus permitting the widest possible range of wing loadi ...
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Schempp-Hirth Ventus-2
The Schempp-Hirth Ventus-2 is a sailplane produced by Schempp-Hirth since 1994. It replaced the highly successful Schempp-Hirth Ventus. Design and development The Ventus-2a and 2b are 15 metre sailplanes. The 'a' version has a narrow fuselage and the wider fuselage version is called the 2b. Winglets are used with these models. The 18 metre span Ventus-2c was introduced in 1995 and was almost an entirely different aircraft with a different fuselage and wings, but it has the option of shorter tips with winglets to fly as a 15-metre sailplane. From 2003 the Schempp-Hirth Discus-2 fuselage was used for all versions, which now have the designations 2ax, 2bx and 2cx. Flight tests in 1996 showed that the 15 metre version had a glide angle of 46:1 but only after considerable work on sealing gaps and by using turbulators. The narrow fuselage Ventus-2a has been highly successful in competitions with consecutive World Championship wins from 1995 to 2003. A narrow fuselage version wit ...
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Rolladen-Schneider LS10
The Rolladen-Schneider LS10 is an 18 metre sailplane designed in Germany by Rolladen-Schneider. A prototype flew in 2003. After Rolladen-Schneider was placed in receivership the sailplane entered production by DG Flugzeugbau. Certification was not achieved until 2010. Other gliders were designed and manufactured by competitors during this period and were produced in greater numbers. Design and development By the mid-nineties Rolladen-Schneider, prompted by customers, began designing a successor to the LS6. Development was protracted, as the LS8 and LS9 projects had higher priority and the company's owner, Walter Schneider, felt the LS6 was still competitive. The initial design was made under the direction of Wolf Lemke. Werner Scholz then developed the prototype, the LS10-a. Although early 3-view drawings of the LS10 showed a curved canopy rail similar to that of the Schleicher ASW 24, when the prototype was revealed it had the same straight canopy rail as the LS6 and LS8 ...
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Wing Loading
In aerodynamics, wing loading is the total mass of an aircraft or flying animal divided by the area of its wing. The stalling speed of an aircraft in straight, level flight is partly determined by its wing loading. An aircraft or animal with a low wing loading has a larger wing area relative to its mass, as compared to one with a high wing loading. The faster an aircraft flies, the more lift can be produced by each unit of wing area, so a smaller wing can carry the same mass in level flight. Consequently, faster aircraft generally have higher wing loadings than slower aircraft. This increased wing loading also increases takeoff and landing distances. A higher wing loading also decreases maneuverability. The same constraints apply to winged biological organisms. Range of wing loadings Effect on performance Wing loading is a useful measure of the stalling speed of an aircraft. Wings generate lift owing to the motion of air around the wing. Larger wings move more air, so an a ...
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Diana Sailplanes
Diana most commonly refers to: * Diana (name), a given name (including a list of people with the name) * Diana (mythology), ancient Roman goddess of the hunt and wild animals; later associated with the Moon * Diana, Princess of Wales (1961–1997), formerly Lady Diana Spencer, was an activist, philanthropist, and member of the British royal family Places and jurisdictions Africa * Diana (see), a town and commune in Souk Ahras Province in north-eastern Algeria * Diana's Peak, the highest point on the island of Saint Helena * Diana Region, a region in Madagascar * Diana Veteranorum, an ancient city, former bishopric and present Latin Catholic titular see in Algeria Americas * Diana, New York, a town in Lewis County, New York, United States * Diana, Saskatchewan, a ghost town in Canada Asia * Diana, Iraq, a town in Iraqi Kurdistan Europe * Diana (Rozvadov), an almost abandoned settlement in the Czech Republic * Diana, Silesian Voivodeship, a village in south Poland * Diana Fortr ...
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