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Gerner G II R
The Gerner G II or Adler-Gerner G II was a German steel framed, low power biplane, intended both for sports and training in the early 1930. Over fifty were built for clubs and private owners. Design and development Max Gerner's G II R sport, touring and training biplane was a development of his one-off G I. The two types had low cost, easily repaired structures built from proprietary steel tubing and unswept, constant chord wings with two truss braced spars; both had lattice girder fuselages and were largely fabric covered. Both also had open, tandem cockpits, fixed undercarriages and a single engine. However, the G II R was larger, heavier and had a choice of engines which typically doubled the power. The fuselage was lengthened, mostly by increased cockpit separation, strengthened with diagonal cross members between the longerons, which placed the rear cockpit behind, rather than over, the trailing edge. These changes raised the weight by 25% and so w ... [...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] |
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] |
Solms
Geography Location Solms lies right in the Lahn valley at the mouth of the eponymous little river Solmsbach and is nestled between the foothills of both the Taunus and Westerwald at heights from 140 to 400 m above sea level. It is about 7 km west of Wetzlar and 30 km northeast of Limburg an der Lahn. Neighbouring communities Solms borders in the north on the community of Ehringshausen and the town of Aßlar, in the east on the town of Wetzlar, in the southeast on the community of Schöffengrund, in the southwest on the town of Braunfels and in the west on the town of Leun (all in the Lahn-Dill-Kreis). Constituent communities The town consists of the following centres: *Albshausen * Burgsolms * Niederbiel * Oberbiel * Oberndorf Solms is a town west of Wetzlar in the Lahn-Dill-Kreis, Hessen, Germany with around 13,500 inhabitants. In the constituent community of Burgsolms once stood the ancestral castle of the Counts and Princes of Solms. Politics Town council ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Düsseldorf
Düsseldorf ( , , ; often in English sources; Low Franconian and Ripuarian: ''Düsseldörp'' ; archaic nl, Dusseldorp ) is the capital city of North Rhine-Westphalia, the most populous state of Germany. It is the second-largest city in the state and the seventh-largest city in Germany, with a population of 617,280. Düsseldorf is located at the confluence of two rivers: the Rhine and the Düssel, a small tributary. The ''-dorf'' suffix means "village" in German (English cognate: ''thorp''); its use is unusual for a settlement as large as Düsseldorf. Most of the city lies on the right bank of the Rhine. Düsseldorf lies in the centre of both the Rhine-Ruhr and the Rhineland Metropolitan Region. It neighbours the Cologne Bonn Region to the south and the Ruhr to the north. It is the largest city in the German Low Franconian dialect area (closely related to Dutch). Mercer's 2012 Quality of Living survey ranked Düsseldorf the sixth most livable city in the world. Düsse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trim Tab
Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force. This is done by adjusting the angle of the tab relative to the larger surface. Changing the setting of a trim tab adjusts the neutral or resting position of a control surface (such as an elevator or rudder). As the desired position of a control surface changes (corresponding mainly to different speeds), an adjustable trim tab will allow the operator to reduce the manual force required to maintain that position—to zero, if used correctly. Thus the trim tab acts as a servo tab. Because the center of pressure of the trim tab is farther away from the axis of rotation of the control surface than the center of pressure of the control surface, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevator (aircraft)
Elevators are flight control surfaces, usually at the rear of an aircraft, which control the aircraft's pitch, and therefore the angle of attack and the lift of the wing. The elevators are usually hinged to the tailplane or horizontal stabilizer. They may be the only pitch control surface present, and are sometimes located at the front of the aircraft (early airplanes) or integrated into a rear "all-moving tailplane", also called a slab elevator or stabilator. Elevator control effectiveness The elevator is a usable up and down system that controls the plane, horizontal stabilizer usually creates a ''downward'' force which balances the nose down moment created by the wing lift force, which typically applies at a point (the wing center of lift) situated aft of the airplane's center of gravity. The effects of drag and changing the engine thrust may also result in pitch moments that need to be compensated with the horizontal stabilizer. Both the horizontal stabilizer and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shock Absorber
A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction). Description Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below). One design consideration, when designing or choosing a shock absorber, is where that energy will go. In most shock absorbers, energy is converted to heat inside the viscous fluid. In hydraulic cylinders, the hydraulic fluid heats up, while in air cylinders, the hot air is usually exhausted to the atmosphere. In other types of shock absorbers, such as electromagnetic types, the dissipated energy can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bungee Cord
Bungee cords equipped with metal hooks A bungee cord (sometimes spelled bungle; also known as a shock cord) is an elastic cord composed of one or more elastic strands forming a core, usually covered in a woven cotton or polypropylene sheath. The sheath does not materially extend elastically, but it is braided with its strands spiralling around the core so that a longitudinal pull causes it to squeeze the core, transmitting the core's elastic compression to the longitudinal extension of the sheath and cord. Specialized bungees, such as some used in bungee jumping, may be made entirely of elastic strands. Uses upA child on a bungee cord device in Moscow, Russia Bungee cords have been used to provide a lightweight suspension for aircraft undercarriages from before World War I, and are still used on many small homebuilt aircraft where weight remains critical. Bungee cords were also used in parachuting to assist in opening the old-style parachute container after the ripcord wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empennage
The empennage ( or ), also known as the tail or tail assembly, is a structure at the rear of an aircraft that provides stability during flight, in a way similar to the feathers on an arrow.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', p. 194. Aviation Supplies & Academics, 1997. Aviation Publishers Co. Limited, ''From the Ground Up'', p. 10 (27th revised edition) The term derives from the French language verb ''empenner'' which means " to feather an arrow". Most aircraft feature an empennage incorporating vertical and horizontal stabilising surfaces which stabilise the flight dynamics of yaw and pitch, as well as housing control surfaces. In spite of effective control surfaces, many early aircraft that lacked a stabilising empennage were virtually unflyable. Even so-called "tailless aircraft" usually have a tail fin (usually a vertical stabiliser). Heavier-than-air aircraft without any kind of empennage (such as the Northrop B-2) are rare, and generally use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirth HM 60
The Hirth HM 60 was a four-cylinder inverted air-cooled inline aircraft engine designed in 1923 and first sold in 1924. The engine was of very high quality, and its sales success contributed to Hirth's rapid pre-war expansion. It was a popular engine for light aircraft delivering 80 hp (60 kW) at 2,300 rpm. Later Hirth engines built upon the HM 60's success and provided greater power with many of the same design features. Variants ;HM60: ;HM60R: ;HM60R-2: Applications *Fieseler Fi 5 *Göppingen Gö 9 *Horten H.V *Klemm Kl 25 *Klemm Kl 35 *Klemm Kl 107 * Shackleton-Murray SM.1 *WNF Wn 16 The WNF Wn 16 was an Austrian experimental aircraft built near the start of World War II to test the properties of the then-new tricycle undercarriage arrangement. Design The WNF Wn 16, originally built as the Meindl-van Nes A.XV (aka Mein ... Specifications (HM 60R) See also References External links Oldengine.org {{Hirth aeroengines Hirth aircraft engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW X
BMW X may refer to the following BMW crossovers, SAVs, and SACs: *BMW X1 (SUV based on 1 Series platform) *BMW X2 (SUV with coupé roofline, based on X1 platform) *BMW X3 (SUV based on 3 Series platform) *BMW X4 (SUV with coupé roofline, based on X3 platform) *BMW X5 (SUV based on 5 Series platform) *BMW X6 (SUV with coupé roofline, based on X5 platform) *BMW X7 (Seven-seat SUV based on 7 Series platform) *BMW XM (SUV with coupé roofline, based on X7 platform) *BMW iX The BMW iX is a battery-electric mid-size luxury crossover SUV manufactured and marketed by the German automobile manufacturer BMW. It was unveiled in concept form named Vision iNext at the 2018 Paris Motor Show, and then as fully production-rea ... (Electric SUV built on a dedicated platform) Gallery {{Set index article, cars X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmson 9 AD
The Salmson 9 AD was a family of air-cooled nine cylinder radial aero-engines produced in the 1930s in France by the Société des Moteurs Salmson. Design and development The 9 AD followed Salmson practice after the First World War, of being air-cooled and utilising the Canton-Unne epicyclic geared crank-case system. The major attributes of the engine include a bore of and stroke of . Variants ;9 AD:The standard production model with LH rotation direct drive. ;9 ADb: ;9 ADr: ;British Salmson AD.9:Production of the Salmson 9AD in Great Britain by the British Salmson Company at New Malden, Surrey. ;British Salmson A.D.9R srsIII:The A.D.9 with a 0.5:1 reduction gear Applications Specifications (9 AD) See also *Salmson air-cooled aero-engines *Salmson water-cooled aero-engines *List of aircraft engines This is an alphabetical list of aircraft engines by manufacturer. 0–9 2si *2si 215 *2si 230 * 2si 430 * 2si 460 *2si 500 * 2si 540 * 2si 690 3W ''Sour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
