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RRG Prüfling
The 1926 German RRG Prüfling ( en, Examinee) of 1926 was a secondary training glider designed for club use. Plans were sold and it was built in Germany and across the world. Design and development Secondary gliders were meant to be used by student pilots after an introduction to flight on very simple primary gliders. Both types needed to be cheap to build, given the difficult financial position of many Germans after World War I and also simple enough that skilled amateur builders, both within and without gliding clubs, could successfully construct them from plans. The primary/secondary glider concept took shape shortly after the absorption of the Martens gliding school on the Wasserkuppe into Rhön-Rossitten Gesellschaft (RRG) at the end of 1925. Martens chief instructor Fritz Stamer and Alexander Lippisch were brought together to produce two such gliders and within a few days the Zögling ( en, Pupil) and the Prufling designs were complete. Some parts, for example the wing ... [...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] |
Tailplane
A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplanes. Not all fixed-wing aircraft have tailplanes. Canards, tailless and flying wing aircraft have no separate tailplane, while in V-tail aircraft the vertical stabiliser, rudder, and the tail-plane and elevator are combined to form two diagonal surfaces in a V layout. The function of the tailplane is to provide stability and control. In particular, the tailplane helps adjust for changes in position of the centre of pressure or centre of gravity caused by changes in speed and attitude, fuel consumption, or dropping cargo or payload. Tailplane types The tailplane comprises the tail-mounted fixed horizontal stabiliser and movable elevator. Besides its planform, it is characterised by: *Number of tailplanes - from 0 ( tailless or canard) t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RRG Falke
The RRG Falke ( en, Falcon) of 1930 was a secondary training glider designed by Alexander Lippisch in Germany and intended to provide better performance than his earlier RRG Prüfling whilst being easier to fly because of its inherent stability. It was sold as plans for both club and commercial production and was built in Germany and abroad. Design and development Secondary gliders were meant to be used by student pilots after an introduction to flight in primary gliders like Lippisch's Zögling. His first secondary glider, the 1926 RRG Prüfling, was disappointing, with a performance not much better than some contemporary primaries; lacking inherent stability its handling was not good either. After that design Lippisch had been working on aircraft which relied on wing sweep to provide stability in pitch, having no horizontal tail. The wing of the Storch IV was swept at about 17° and carried lobate ailerons which extended behind the rest of the trailing edge and were hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Gliding Club
The London Gliding Club (LGC) is a members' club whose airfield is located at the foot of the Dunstable Downs. Many privately owned gliders are based there. It has the facilities to train pilots in powerless flight, and in the skills necessary to fly cross country using nature's sources of energy. Aerobatics and instructor training are also available. The LGC is open 364 days a year and is the second largest and one of the oldest Gliding Clubs in the United Kingdom, smaller only than Lasham Gliding Society. The club provides gliding courses, one day courses and trial lessons for members of the public. History The gliding club was formed on 20 February 1930, about a month before the formation of the British Gliding Association. LGC's first flights were made on 16 March 1930 at Stoke Park Farm, near the Guildford works of R.F.Dagnall. They used a German "Zӧgling" primary glider on loan from the BGA and a modified Zӧgling donated by R.F.Dagnall that later become known as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lancashire Aero Club
The Lancashire Aero Club is the oldest established flying club in the United Kingdom, it was founded in 1909 to organise the Blackpool Aviation Week, Britain's first officially recognised air show. Early history * October 1909: The original club was founded in Blackpool. * Late 1922: The club was re-formed by John F. Leeming and a group of friends who had started to build a glider in Leeming's garage at his home in Bowdon near Altrincham Cheshire. It was named "Aero Club" because at the time many racing pigeon clubs called themselves "'''' Flying Club". * Early 1924: The LPW Glider was completed and was taken to Alexandra Park Aerodrome. The club flew the glider many times at Alexandra Park, launching it by towing behind a car. * August 1924: Alexandra Park Aerodrome closed. The club moved to Avro's Woodford Aerodrome. * 21 July 1925: Alan Cobham delivered the club's first powered aircraft (a de Havilland DH.60 Moth) to Woodford * August 1925: Another followed it. * 22 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rossitten
Rybachy (russian: Рыба́чий, from ''Рыба́к'', "Fisherman", german: Rossitten, pl, Rosity, lt, Rasytė) is a rural settlement in Zelenogradsky District of Kaliningrad Oblast, Russia, located on the Curonian Spit. As of 2010 it has about 839 residents. It was formerly known for the Rossitten Bird Observatory and the Rossitten gliding school. Geography Rybachy is the largest settlement on the Russian side of the Curonian Spit between the Curonian Lagoon and the Baltic Sea, close to the border with Lithuania. It is the administrative seat of the Kurschskaja Kossa (Curonian Spit) municipality. It lies approximately north-east of Zelenogradsk. History A Teutonic ''Ordensburg'' castle on the road from Königsberg to Memel (Klaipėda) was first mentioned in 1372. It had been the site of a Curonian fishing village, named after Old Prussian ''rosit'' ("dew", cf. lt, Rasa). Constantly threatened by coastal dunes the settlement had to be relocated several times until t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanced Rudder
Balanced rudders are used by both ships and aircraft. Both may indicate a portion of the rudder surface ahead of the hinge, placed to lower the control loads needed to turn the rudder. For aircraft the method can also be applied to elevators and ailerons; all three aircraft control surfaces may also be mass balanced, chiefly to avoid aerodynamic flutter. Ships A balanced rudder is a rudder in which the axis of rotation of the rudder is behind its front edge. This means that when the rudder is turned, the pressure of water caused by the ship's movement through the water acts upon the forward part to exert a force which increases the angle of deflection, so counteracting the pressure acting on the after part, which acts to reduce the angle of deflection. A degree of semi-balance is normal to avoid rudder instability i.e. the area in front of the pivot is less than that behind. This allows the rudder to be moved with less effort than is necessary with an unbalanced rudder. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cabane Strut
In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in compression or tension as the need arises, and/or wires, which act only in tension. In general, bracing allows a stronger, lighter structure than one which is unbraced, but external bracing in particular adds drag which slows down the aircraft and raises considerably more design issues than internal bracing. Another disadvantage of bracing wires is that they require routine checking and adjustment, or rigging, even when located internally. During the early years of aviation, bracing was a universal feature of all forms of aeroplane, including the monoplanes and biplanes which were then equally common. Today, bracing in the form of lift struts is still used for some light commercial designs where a high wing and light weight are more impo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockpit
A cockpit or flight deck is the area, usually near the front of an aircraft or spacecraft, from which a Pilot in command, pilot controls the aircraft. The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls that enable the pilot to fly the aircraft. In most airliners, a door separates the cockpit from the aircraft cabin. After the September 11 attacks, September 11, 2001 attacks, all major airlines Airport_security_repercussions_due_to_the_September_11_attacks#Improved_security_on_aircraft, fortified their cockpits against access by aircraft hijacking, hijackers. Etymology The word cockpit seems to have been cockpit (sailing), used as a nautical term in the 17th century, without reference to cock fighting. It referred to an area in the rear of a ship where the cockswain's station was located, the cockswain being the pilot of a smaller "boat" that could be dispatched from the ship to board another ship or to bring people ashore. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longerons
In engineering, a longeron and stringer is the load-bearing component of a framework. The term is commonly used in connection with aircraft fuselages and automobile chassis. Longerons are used in conjunction with stringers to form structural frameworks. Aircraft In aircraft fuselage, stringers are attached to formers (also called frames) and run in the longitudinal direction of the aircraft. They are primarily responsible for transferring the aerodynamic loads acting on the skin onto the frames and formers. In the wings or horizontal stabilizer, longerons run spanwise (from wing root to wing tip) and attach between the ribs. The primary function here also is to transfer the bending loads acting on the wings onto the ribs and spar. Sometimes the terms "longeron" and "stringer" are used interchangeably. Historically, though, there is a subtle difference between the two terms. If the longitudinal members in a fuselage are few in number (usually 4 to 8) and run all along the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lift Strut
In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in compression or tension as the need arises, and/or wires, which act only in tension. In general, bracing allows a stronger, lighter structure than one which is unbraced, but external bracing in particular adds drag which slows down the aircraft and raises considerably more design issues than internal bracing. Another disadvantage of bracing wires is that they require routine checking and adjustment, or rigging, even when located internally. During the early years of aviation, bracing was a universal feature of all forms of aeroplane, including the monoplanes and biplanes which were then equally common. Today, bracing in the form of lift struts is still used for some light commercial designs where a high wing and light weight are more imp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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