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List Of South African 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. South African miscellaneous constructors * Aero-Xpert AX-1 – Aero-Xpert, Hennopsmeer (CELLIER, Peter & JORDAAN, François) * BJ-1 design * Beatty-Johl BJ-2 Assegai * Beatty-Johl BJ-3 * Beatty-Johl BJ-1969 world gliding championships page15-16http://aviation.derosaweb.net/images/BJ-4/ Images] * Celair GA-1 Celstar – Celair Manufacturing and Export (CELLIER, Peter & JORDAAN, François) * Exulans (glider) (Pretoria University) * JG-1 (glider) * Jonker JS-1 Revelation – Jonker Sailplanes / JONKER, Attie * 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, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glider Aircraft
A glider is a fixed-wing aircraft that is supported in flight by the dynamic reaction of the air against its lifting surfaces, and whose free flight does not depend on an engine. Most gliders do not have an engine, although motor-gliders have small engines for extending their flight when necessary by sustaining the altitude (normally a sailplane relies on rising air to maintain altitude) with some being powerful enough to take off by self-launch. There are a wide variety of types differing in the construction of their wings, aerodynamic efficiency, location of the pilot, controls and intended purpose. Most exploit meteorological phenomena to maintain or gain height. Gliders are principally used for the air sports of gliding, hang gliding and paragliding. However some spacecraft have been designed to descend as gliders and in the past military gliders have been used in warfare. Some simple and familiar types of glider are toys such as paper planes and balsa wood gliders. Etym ... [...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] |
Beatty-Johl BJ-2 Assegai
The Beatty-Johl BJ-2 Assegai was a single seat, high performance competition glider built in South Africa in the early 1960s. Only one was built; it was optimised for South African conditions and performed well there, winning two nationals and setting several records, but was less successful under European conditions at the 1965 World Gliding Championships. Design and development The BJ-2 was a successor to the BJ-1, a 60 ft (18.3 m) span glider on which design began in South Africa in 1945 but abandoned before completion as it became clear that the new laminar flow airfoil sections offered better performance. The BJ-2 used one of the 65 series airfoils in conjunction with Fowler flaps. Its design, led by W.A.T. Johl, concentrated on high cross country glide speeds, achieved via a high wing loading and low camber, important in South African gliding conditions with strong thermals and long flights between them. Design work started in 1955 but the BJ-2 was not flown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celair GA-1 Celstar
The Celair GA-1 Celstar is a South African mid-wing, single-seat, aerobatic glider that was designed by Pieter Celliers and produced by his company, Celair (Pty) Limited. Design and development The GA-1 was especially intended for flying competitive glider aerobatics and the resulting airframe was designed to Joint Aviation Requirements 22 standards and stressed to 10 g. The aircraft is made from a combination of fibreglass and aramid. Its span wing employs a Wortmann FX-71-L-150/25 airfoil. The ailerons are full-span and mass-balanced. Dive brakes are used for approach control. At least eight were produced, with two exported to Switzerland and six to the United States. Operational history In August 2011 there were two GA-1s registered in the US with the Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
Vine 1930 Glider
A vine ( Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themselves, for instance, when used in wicker work.Jackson; Benjamin; Daydon (1928). ''A Glossary of Botanic Terms with their Derivation and Accent'', 4th ed. London: Gerald Duckworth & Co. In parts of the world, including the British Isles, the term "vine" usually applies exclusively to grapevines ('' Vitis''), while the term "climber" is used for all climbing plants. Growth forms Certain plants always grow as vines, while a few grow as vines only part of the time. For instance, poison ivy and bittersweet can grow as low shrubs when support is not available, but will become vines when support is available. A vine displays a growth form based on very long stems. This has two purposes. A vine may use rock exposures, other plants, or o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russell Whisper
Russell may refer to: People * Russell (given name) * Russell (surname) * Lady Russell (other) * Lord Russell (other) Places Australia * Russell, Australian Capital Territory * Russell Island, Queensland (other) ** Russell Island (Moreton Bay) **Russell Island (Frankland Islands) *Russell Falls, Tasmania *A former name of Westerway, Tasmania Canada *Russell, Ontario, a township in Ontario * Russell, Ontario (community), a town in the township mentioned above. * Russell, Manitoba * Russell Island (Nunavut) New Zealand * Russell, New Zealand, formerly Kororareka * Okiato or Old Russell, the first capital of New Zealand Solomon Islands * Russell Islands United States * Russell, Arkansas *Russell City, California, formerly Russell *Russell, Colorado *Russell, Georgia * Russell, Illinois * Russell, Iowa * Russell, Kansas * Russell, Kentucky, in Greenup County * Russell, Louisville, Kentucky * Russell, Massachusetts, a New England town ** Russell (CDP) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
