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Jonker JS-1 Revelation
The Jonker JS-1 Revelation is a glider built of glass-fibre, carbon fibre and Kevlar. It is available with an 18-metre span for the 18 metre class or a 21-metre span for the Open class. The manufacturer is Jonker Sailplanes of Potchefstroom South Africa, founded in 2004 by two brothers, Attie and Uys Jonker. The structural and chief designer is Attie Jonker, while the airfoil and main aerodynamic features were developed by Johan Bosman in co-operation with the Delft University of Technology. 18 metre versions The wing has full-span flaperons, an elliptical planform and uses winglets. It is in 4 pieces, each tip is 1.5 metres. Two novel features are: * a double-hole blowing/suction system in the wings to minimise drag. The two rows of blow holes on the lower surface prevent turbulent flow at specific locations for different flap settings, thus reducing drag * a jet engine for the self-sustaining version. A self-launching version was considered but it was decided that the fusela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailplane
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplanes are aerodynamically streamlined and so can fly a significant distance forward for a small decrease in altitude. In North America the term 'sailplane' is also used to describe this type of aircraft. In other parts of the English-speaking world, the word 'glider' is more common. Types Gliders benefit from producing the least drag for any given amount of lift, and this is best achieved with long, thin wings, a slender fuselage and smooth surfaces with an absence of protuberances. Aircraft with these features are able to soar – climb efficiently in rising air produced by thermals or hills. In still air, sailplanes can glide long distances at high speed with a minimum loss of height in between. Sailplanes have rigid wings and either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Engine
A jet engine is a type of reaction engine discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition can include rocket, Pump-jet, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet engine, pulse jet. In general, jet engines are internal combustion engines. Airbreathing jet engines typically feature a Axial compressor, rotating air compressor powered by a turbine, with the leftover power providing thrust through the propelling nozzle—this process is known as the Brayton cycle, Brayton thermodynamic cycle. Jet aircraft use such engines for long-distance travel. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. Most modern subsonic jet aircraft use more complex High-bypass turbofan, high-bypass turbofan engines. They give higher speed and greater fuel eff ... [...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] |
Lange Antares 23E
The Antares is a glider built by Lange Aviation produced with three different wingspans, 18, 20 and 23 meters. The 20 and 23 meter variants can be equipped with a 42-kW electric motor and SAFT VL 41M lithium-ion batteries. The EM 42 is a fixed-shaft brushless DC electric motor (see Lange EA 42) running at 190-288 V, and drawing up to 160 A, the 42 kW motor can deliver up to 216 N.m of torque over a speed range of 160-1600 RPM with a total efficiency of 90%. Maximum continuous power is 38.5 kW, the motor weighs 29 kg, and the weight of power electronics is 10 kg. The motor turns a two-blade fixed-pitch propeller, LF-P42, constructed of composite materials, having a diameter of two meters. The battery system consists of two battery packs positioned in the leading edges of both inner wings (72 cells divided into 24 modules containing 3 cells each). The battery life is expected to be 3000 cycles or 20 years. The capacity of the battery is 41 Ah (specific ener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schempp-Hirth Ventus-3
The Schempp-Hirth Ventus-3 is a sailplane produced by Schempp-Hirth. It replaces the highly successful Schempp-Hirth Ventus-2. Design and development It was announced at the AERO Friedrichshafen in April 2015 where a mock-up was suspended from the ceiling of the exhibition hall. The prototype flew on 29 January 2016 at Flugplatz Hahnweide at Kirchheim unter Teck in Germany. Production of the first seven turbo Ventus 3T started on 28 April 2016. These competed in the 2017 World Gliding Championships and the 2017 European Gliding Championships. In the latter competition, pilots with Ventus 3T took the first three places in the 18m Class. A Ventus 3T also took first place at the World Championships at Hos%C3%ADn in 2018. Two sizes of fuselage are now available, Sport and Performance; the latter is larger. The Sport fuselage is available as a pure glider, or with a turbo sustaining engine, or a front-end electric sustaining (FES) engine. Currently the larger fuselage is only availa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonker JS-3 Rapture
The Jonker JS-3 Rapture is a glider built of glass-fibre, carbon fibre and Kevlar. It has full-span flaps and can be operated with a wingspan of either or . The manufacturer is Jonker Sailplanes of Potchefstroom South Africa, founded in 2004 by two brothers, Attie and Uys Jonker. The structural and chief designer is Attie Jonker, while the airfoil and main aerodynamic features were developed by Johan Bosman in co-operation with the Delft University of Technology. The first flight of the JS-3 was on 12 December 2016. Design and development Type certification of the JS-MD 3 was achieved with EASA on 18 July 2019. The JS3 is equipped with Tost nose and centre of gravity release hooks, retractable main undercarriage leg with elastomeric shock absorbers, and a fixed pneumatic tail wheel with an aluminium hub. A retractable tail wheel can be fitted in place of the fixed tailwheel. Provision is made to fit two 12V LiFePo 7Ah/10Ah main batteries with a fuse box in the luggage c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M&D Flugzeugbau MD-TJ42
Kim Heechul & Kim Jungmo (formerly M&D, shortened from Midnight & Dawn or Miari & Dangye-dong) was a South Korean pop rock duo formed by SM Entertainment in 2011. The group was composed of Super Junior's Heechul and TraxX's Kim Jung-mo. Both members decided to write and compose every song the project group released. They'll continuously release music which they can and want to do, regardless of the genre. Their debut single, "Close Ur Mouth" was released in June 2011 under the name, M&D. In early July 2016, SM Entertainment announced that the duo would return as Kim Heechul & Kim Jungmo (). The group disbanded on April 30, 2019. History M&D released their debut digital single "Close Ur Mouth" on June 22, 2011. They also released their music video, starring various artists, including F.T. Island's Choi Jong-hoon and Lee Hong-gi, Supreme Team's Simon D, Miss A's Jia, Beast's Yong Jun-hyung and Comedian Kim Kyung Jin. Their first live performance was at Mnet’s summer awards ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M&D Flugzeugbau
__NOTOC__ M&D Flugzeugbau is an aircraft manufacturing company based in Friedeburg Friedeburg is a municipality in the district of Wittmund, in Lower Saxony, Germany. It is situated approximately 14 km southeast of Wittmund, and 20 km west of Wilhelmshaven. About 4 kilometers east of the main village of Friedeburg, n ..., Germany. it manufactures the Samburo motor-glider and provides a range of maintenance services for other aircraft made of composite materials such as Jonker Sailplanes and the MD-TJ42 jet engine. References company website Aircraft manufacturers of Germany {{Germany-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Gliding Championships
The World Gliding Championships (WGC) is a gliding competition held every two years or so by the FAI Gliding Commission. The dates are not always exactly two years apart, often because the contests are sometimes held in the summer in the Southern Hemisphere. History Gliding had been a demonstration sport at the 1936 Summer Olympics and was due to become an official Olympic sport in the Helsinki Games in 1940. However, since the Second World War, gliding has not featured in the Olympics, and so the World Championships are the highest level in the sport. There are now contests for six classes of glider and so in recent years the Championships have been divided between two locations. The women's, junior, grand prix and aerobatic events are also held separately. Each of the following entries give the year and location of the contest followed by the winner of each class, nationality and the glider used. A list of future events is available here World Grand Prix Gliding Champ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motor Glider
A motor glider is a fixed-wing aircraft that can be flown with or without engine power. The FAI Gliding Commission Sporting Code definition is: a fixed-wing aerodyne equipped with a means of propulsion (MoP), capable of sustained soaring flight without thrust from the means of propulsion. History In 1935, an occasional or auxiliary motor that could be retracted was suggested by Sir John Carden. This was incorporated into the Carden-Baynes Auxiliary that first flew on 8 August of the same year. A later version of the Budig glider was powered. Types Most motor gliders are equipped with a propeller, which may be fixed, feathered (e.g. AMS-Flight Carat), or retractable. However jet engine-powered motorgliders are now available from some manufacturers, some of which are intended for use only as "sustainer" engines, i.e. for sustaining gliding flight rather than as self-launching aircraft. Fixed or feathering propeller Touring motor gliders Motor with fixed or full feathering p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingtip Device
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag by partial recovery of the tip vortex energy. Wingtip devices can also improve aircraft handling characteristics and enhance safety for following aircraft. Such devices increase the effective aspect ratio of a wing without greatly increasing the wingspan. Extending the span would lower lift-induced drag, but would increase parasitic drag and would require boosting the strength and weight of the wing. At some point, there is no net benefit from further increased span. There may also be operational considerations that limit the allowable wingspan (e.g., available width at airport gates). Wingtip devices help prevent the flow around the wingtip of higher pressure air under the wing flowing to the lower pressure surface on top at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
