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Rolladen-Schneider LS3
The Rolladen-Schneider LS3 is a 15 metre single-seat glider produced by Rolladen-Schneider from 1976 to 1983. Development and design The LS3 was developed as Rolladen-Schneider's first entry to the new 15-metre competition class created in 1974 by the International Gliding Commission of the Fédération Aéronautique Internationale. Building upon previous experience with the LS1 and LS2, chief designer Wolf Lemke developed a new fuselage with a larger cockpit and more generous horizontal and vertical stabilisers. Lemke selected a relatively thick airfoil profile developed in 1967 by University of Stuttgart Professor Franz Wortmann, the FX 67-K-170, which offered the structural economy made possible by a tall spar - an important consideration as glass fibre was still the only affordable reinforcement material - as well as good performance for the time. This profile and its sister profile FX 67-K-150 are among the most prolific in the history of gliding, as they were employe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaser-Dirks DG-200
The Glaser-Dirks DG-200 is a 15 metre class glider built by Glaser-Dirks, now DG Aviation GmbH Design started in 1976, and it first flew in 1977. Wingtip extensions to 17 metres were offered in 1978. Later enhancements included a single-piece canopy, a carbon-fibre wing spar and a change in the wing profile. A total of 192 DG-200 were built. The glider designs * a two-piece conventional elevator, with a fixed forward stabilizer and aft-mounted movable elevator. * a control stick with a parallelogram linkage to reduce pilot self-indiced acceleration. * a schempp-hirth airbrakes, on top surface only * a 5"x5" main wheel (drum brake) and a 200x50 tail wheel * l'Hottelier connection for the ailerons, airbrakes and elevator (elevator connection is automatic on the DG-202). Flaps connection is automatic. According to Richard H. Johnson in his ''Flight Test Evaluation of the DG-200'' published in the Soaring Magazine in July 1980: "The sailplane is a real beauty to behold with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1970s German Sailplanes
Year 197 ( CXCVII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Magius and Rufinus (or, less frequently, year 950 ''Ab urbe condita''). The denomination 197 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 * February 19 – Battle of Lugdunum: Emperor Septimius Severus defeats the self-proclaimed emperor Clodius Albinus at Lugdunum (modern Lyon). Albinus commits suicide; legionaries sack the town. * Septimius Severus returns to Rome and has about 30 of Albinus's supporters in the Senate executed. After his victory he declares himself the adopted son of the late Marcus Aurelius. * Septimius Severus forms new naval units, manning all the triremes in Italy with heavily armed troops for war in the East. His soldiers embark on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akaflieg München Mü28
The Akaflieg München Mü28 is a research glider aircraft that was designed and built in Germany in 1983. Only one example of the design was built. Development Students at Akaflieg München started the development of a high performance aerobatic glider during the early 1980s. The aerobatic performance of the resulting Mü28 hinged on the extremely strong structure, stressed to +/-10g. Use of a symmetrical aerofoil section and an innovative automatic flap system (Wölbklappenautomatik) contributed to the Mü28's success. By combining a symmetrical aerofoil section with an automatic flap system the Mü28 has identical performance and handling in normal and inverted flight, resulting in a harmonious image whether flying inverted or in normal flight during aerobatic routines. Wölbklappenautomatik (Automatic flap System) This innovative automatic flap system fitted to the Mü28 was developed at the Flugwissenschaftliche Vereinigung Aachen under the project designation FVA-21, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolladen-Schneider LS6
The Rolladen-Schneider LS6 is a 15 metre and 18 metre single-seat flapped glider manufactured by Rolladen-Schneider Flugzeugbau GmbH between 1984 and 2003. Development The prototype of the LS6, successor to the LS3 in the FAI 15 metre Class, made its first flight in 1983. Having entered production one year later, the LS6 had an uncommonly long production run ended by Rolladen-Schneider's entry into receivership in 2003. A total of 375 of all versions were built. A watershed design, the LS6 introduced carbon reinforced plastic as a structural material in LS-gliders, thin profiles for wings and empennage, wing extensions and other features that have been retained in all subsequent types developed by the company. The Akaflieg Darmstadt D41, the LS9 and the Akaflieg Köln LS11 all have wings built in the LS6 moulds. Bettering the record of the LS4 in the Standard Class, the LS6 dominated the 15 metre Class over nearly a decade, winning the first two places at the 1985 Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Schleicher ASW 20
The ASW 20 is an FAI 15 metre Class glider designed by Gerhard Waibel and built by Alexander Schleicher GmbH & Co. Its fuselage is nearly identical to that of the ASW 19, mated to newly designed flapped wings for the 15 metre Class. The prototype first flew in 1977. It proved to be a highly successful glider, winning several World Championships, and was still being flown at this level up to 1995. Developments along its production life included winglets, pneumatic turbulators, and wingtip extensions. It remained in production until 1990, when it was superseded by the ASW 27. 765 were built by Schleicher and a further 140 were made under license by Centrair in France. The ASW 20 was successful in competition, winning numerous world and national championships. Dick Johnson reported that the ASW 20 was the first 15 m glider to demonstrate a measured L/D in excess of 40:1. Roy McMaster, Karl Striedieck and John Seymour won jointly, with others, the world triangle distance rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sportine Aviacija LAK-12
The LAK-12 is a Lithuanian mid-wing, single-seat, FAI Open Class glider that was designed and produced by Lietuviškos Aviacinės Konstrukcijos (LAK) ( en, Lithuanian Aircraft Builders) in Lithuania and later by Sportine Aviacija and Sport Aviation USSR. Design and development The LAK-12 was designed in the 1980s as an open class racer. The aircraft is made from fibreglass, foam and carbon fibre. Its span foam-core wing employs a Wortmann FX67-K-170 airfoil at the wing root, transitioning to a FX67- K-150 section at the wing tip. The wings feature both double-panel upper surface air brakes and flaps that can be set to -7°, -4°, 0°, +5°, +11° and +15°. Water ballast is held in the wing leading edges and dumped through a centre-fuselage valve. The landing gear is a single retractable monowheel suspended by an oil/nitrogen oleo, plus a tailskid. The cockpit canopy is of one-piece and forward hinged. Operational history According to Sportine Aviacija, the current ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SZD-38 Jantar 1
The SZD-38 Jantar 1 (Amber) is a glider designed and produced in Poland from 1971. Development After SZD's success in designing high-performance all-wood gliders, the design group's first product using fibreglass emerged as a very competitive glider. Two prototypes of the SZD-37x Jantar were built (SP-2636 and SP-2637), using fibreglass reinforced plastic fuselage and tail-unit with an aluminium alloy tubular tail boom, SP-2636 was built with a 17.5m span wing and SP-2637 a 19m span wing. The first flight of SP-2636 was carried out on 14 February 1972 and extensive testing carried out before the second prototype, SP-2637 (first flight 13 May 1972), was entered in the 1972 World Gliding Championships at VrŠac in Yugoslavia Yugoslavia (; sh-Latn-Cyrl, separator=" / ", Jugoslavija, Југославија ; sl, Jugoslavija ; mk, Југославија ;; rup, Iugoslavia; hu, Jugoszlávia; rue, label=Pannonian Rusyn, Югославия, translit=Juhoslavija ..., tak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slingsby Vega
The Vickers-Slingsby T-65 Vega is a 15-metre class class glider which first flew on 3 June 1977. Of fibreglass construction, it features linked camber-changing flaps and airbrakes, and a retractable main and tailwheel. A simplified version called the T-65C Sport Vega has a non-retractable mainwheel and hinged trailing edge airbrakes instead of flaps. This version of the Vega first flew on 18 December 1979 and has no provision for water ballast. Variants Data from: ;T65A :Initial production version first flown in 1977. ;T65B :One production glider was designated T65B. ;T65C Sport Vega :Fixed-wheel with no flaps or water ballast, first flown in 1980. ;T65D Vega :Increased water ballast to 350 lb (160 kg) and increased all up weight to 1,120 lb (510 kg). ;Vega 17L :Gliders fitted with optional wingtips to increase span to 17 metres. Specifications (T65D) References * * *Martin Simons, ''Slingsby Sailplanes'', External links British Gliding Association data sheet {{Sli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasflügel 303
The Glasflügel 303 Mosquito is a composite 15 metre Class single-seat sailplane manufactured by Glasflügel between 1976 and 1980. Design and development Designed for the 15 metre racing class, the Mosquito married the Standard Class Hornet fuselage with a flapped wing employing the then widely-used FX 67-K-170 airfoil developed at the University of Stuttgart by Professor Franz Wortmann. The Mosquito had a new design of one-piece canopy rather than the two-piece canopy used on the Hornet. This profile and its sister profile FX 67-K-150 are among the most prolific in the history of gliding, as they were employed also in the Nimbus-2, Mini-Nimbus, DG-200 and DG-400, PIK-20, Kestrel, Mosquito, Vega, Jantar and LAK-12 among other types. The 303 wing featured innovative interconnected trailing edge dive brakes-variable camber flaps. The glider had automatic connection for all controls: ailerons, elevator, air brakes and water ballast. The Mosquito also uses a pneumatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasflügel 401
The Glasflügel 401 "Kestrel" is a glider that was developed in 1968 for the open class. It has a wingspan of 17 metres. It is named after the kestrel bird. History Between 1968 and 1975 Glasflügel built 129 ''Kestrels''. The British company Slingsby built the ''Kestrel'' under license as the T59 and T59B. The T59B has a wingspan of 19 metres and was developed for the 1970 World Gliding Championships. On 18 May 2005, Gordon Boettger flew 2061 km in his ''Kestrel'' in lee waves In meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered in 1933 by two German glider pilots, Hans Deutschmann and Wolf Hirth, above ... along the Sierra Nevada in the USA. Retrieved 2012-01-02 ...
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