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Focke-Wulf Fw 44J
The Focke-Wulf Fw 44 ''Stieglitz'' (Goldfinch) is a twin-seat biplane designed and produced by the German aircraft manufacturer Focke-Wulf. It was the company's first major international success. The Fw 44 had a relatively conventional layout for a biplane, possessing a pair of open cockpits that were arranged in tandem; both cockpits were equipped with flight controls and instrumentation. The aircraft had straight untapered wings, fixed tailwheel landing gear, and was typically powered by a Siemens-Halske Sh 14 radial engine. It was furnished with ailerons on both upper and lower wings, but did not use flaps. The design team was headed by Kurt Tank. Intended for use as a pilot training and sports aircraft, the first prototype conducted its maiden flight in the latter half of 1932; while initially proving to be troublesome, remedial modifications and design tweaks quickly adapted the Fw 44 into a suitable aircraft for performing aerobatic manoeuvres, a feat which numerous noted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biplane
A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a monoplane wing. Improved structural techniques, better materials and higher speeds made the biplane configuration obsolete for most purposes by the late 1930s. Biplanes offer several advantages over conventional cantilever monoplane designs: they permit lighter wing structures, low wing loading and smaller span for a given wing area. However, interference between the airflow over each wing increases drag substantially, and biplanes generally need extensive bracing, which causes additional drag. Biplanes are distinguished from tandem wing arrangements, where the wings are placed forward and aft, instead of above and below. The term is als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerobatics
Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aeroplane" and "acrobatics". Aerobatics are performed in aeroplanes and gliders for training, recreation, entertainment, and sport. Additionally, some helicopters, such as the MBB Bo 105, are capable of limited aerobatic manoeuvres. An example of a fully aerobatic helicopter, capable of performing loops and rolls, is the Westland Lynx. Most aerobatic manoeuvres involve rotation of the aircraft about its longitudinal (roll) axis or lateral (pitch) axis. Other maneuvers, such as a spin, displace the aircraft about its vertical (yaw) axis. Manoeuvres are often combined to form a complete aerobatic sequence for entertainment or competition. Aerobatic flying requires a broader set of piloting skills and exposes the aircraft to greater structural stress than for normal flight. In some countries, the pilot must wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stagger (aeronautics)
In aviation, stagger is the relative Horizontal plane, horizontal fore-aft positioning of stacked wings in a biplane, triplane, or multiplane (aeronautics), multiplane. An aircraft is said to have ''positive stagger'', or simply ''stagger'', when the upper wing is positioned forward of the lower (bottom) wing,NACA technical report No.310 ''Wind Tunnel Pressure Distribution Tests on a Series of Biplane Wing Models'' (July 1929), p.17. Retrieved on 8 February 2009. Examples include the de Havilland Tiger Moth or Boeing-Stearman Model 75, Stearman. Conversely, an aeroplane is said to have ''negative stagger'' in unusual cases where the upper wing is positioned behind the lower wing, as in the Sopwith Dolphin or Beech Model 17 Staggerwing. An aircraft with the wings positioned directly ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swept Wing
A swept wing is a wing angled either backward or occasionally forward from its root rather than perpendicular to the fuselage. Swept wings have been flown since the pioneer days of aviation. Wing sweep at high speeds was first investigated in Germany as early as 1935 by Albert Betz and Adolph Busemann, finding application just before the end of the Second World War. It has the effect of delaying the shock waves and accompanying aerodynamic drag rise caused by fluid compressibility near the speed of sound, improving performance. Swept wings are therefore almost always used on jet aircraft designed to fly at these speeds. The term "swept wing" is normally used to mean "swept back", but variants include forward sweep, variable sweep wings and oblique wings in which one side sweeps forward and the other back. The delta wing is also aerodynamically a form of swept wing. Reasons for sweep There are three main reasons for sweeping a wing: 1. to arrange the center of gravity o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bracing (aeronautics)
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 struts, 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 aeroplanes, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strut
A strut is a structural component commonly found in engineering, aeronautics, architecture and anatomy. Struts generally work by resisting longitudinal compression, but they may also serve in tension. A stay is sometimes used as a synonym for strut, but some sources distinguish that struts are braces for holding compressive forces apart, while stays are braces for keeping stretching forces together. Human anatomy Part of the functionality of the clavicle is to serve as a strut between the scapula and sternum, resisting forces that would otherwise bring the upper limb close to the thorax. Keeping the upper limb away from the thorax is vital for its range of motion. Complete lack of clavicles may be seen in cleidocranial dysostosis, and the abnormal proximity of the shoulders to the median plane in cases of this genetic condition exemplifies the clavicle's importance as a strut. Architecture and construction Strut is a common name in timber framing for a support or brace of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeronautical Engineer
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is similar, but deals with the electronics side of aerospace engineering. "Aeronautical engineering" was the original term for the field. As flight technology advanced to include vehicles operating in outer space, the broader term "aerospace engineering" has come into use. Aerospace engineering, particularly the astronautics branch, is often colloquially referred to as "rocket science". Overview Flight vehicles are subjected to demanding conditions such as those caused by changes in atmospheric pressure and temperature, with structural loads applied upon vehicle components. Consequently, they are usually the products of various technological and engineering disciplines including aerodynamics, air propulsion, avionics, materials science, st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albatros Flugzeugwerke
Albatros Flugzeugwerke GmbH was a German aircraft manufacturer best known for supplying the German Luftstreitkräfte during World War I. The company was based in Adlershof, Johannisthal, Berlin, where it was founded by Walter Huth and Otto Wiener on December 20, 1909. The company (and its subsidiary, Ostdeutsche Albatros Werke (OAW)) produced many capable fighter aircraft, notably the Albatros D.III and Albatros D.V, both designed by Robert Thelen. The Albatros merged into Focke-Wulf in 1931. History The company was founded in Berlin-Johannisthal in late 1909 by Enno Walther Huth as the Albatros Werke AG. The first aircraft the company produced was a French Antoinette monoplane, which they built under licence. They then produced several versions of the Etrich Taube monoplane, as well the Albatros Doppeltaube, Doppeltaube biplane which used the same basic planform. A variety of other biplanes, with more conventional wing planforms were also built and flown. In 1912, five Albat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merger
Mergers and acquisitions (M&A) are business transactions in which the ownership of a company, business organization, or one of their operating units is transferred to or consolidated with another entity. They may happen through direct absorption, a merger, a tender offer or a hostile takeover. As an aspect of strategic management, M&A can allow enterprises to grow or downsize, and change the nature of their business or competitive position. Technically, a is the legal consolidation of two business entities into one, whereas an occurs when one entity takes ownership of another entity's share capital, equity interests or assets. From a legal and financial point of view, both mergers and acquisitions generally result in the consolidation of assets and liabilities under one entity, and the distinction between the two is not always clear. Most countries require mergers and acquisitions to comply with antitrust or competition law. In the United States, for example, the Clayt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focke-Wulf A 16
The Focke-Wulf A.16 was a German three/four passenger light transport monoplane designed by Heinrich Focke and Georg Wulf and was the first design built by the newly formed Focke-Wulf company. Development With the success of their earlier designs, Focke and Wulf formed the Focke-Wulf company in 1924 and their first design was an all-wood three/four passenger airliner or light transport, the A.16, first flown by Georg Wulf on 23 June 1924. At least 20 aircraft were built; according to Airbus Industrie, Bremen, 23 were built. Airbus has built another one in the last ten years, though not airworthy, which is on display at Bremen Airport. The A.16 was a high-wing cantilever monoplane of conventional configuration. The wing used a thick airfoil. The pilot sat in an open cockpit above the wing while the passengers were carried in the enclosed fuselage below. The tailskid undercarriage featured large wheels mounted on each side of the fuselage. Variants ;A.16a :Variant powered by a 100 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luftwaffe
The Luftwaffe () was the aerial warfare, aerial-warfare branch of the before and during World War II. German Empire, Germany's military air arms during World War I, the of the Imperial German Army, Imperial Army and the of the Imperial German Navy, Imperial Navy, had been disbanded in May 1920 in accordance with the terms of the 1919 Treaty of Versailles, which banned Germany from having any air force. During the interwar period, German pilots were trained secretly in violation of the treaty at Lipetsk (air base), Lipetsk Air Base in the Soviet Union. With the rise of the Nazi Party and the repudiation of the Versailles Treaty, the Luftwaffe's existence was publicly acknowledged and officially established on 26 February 1935, just over two weeks before open defiance of the Versailles Treaty through German rearmament and conscription would be announced on 16 March. The Condor Legion, a Luftwaffe detachment sent to aid Nationalist faction (Spanish Civil War), Nationalist for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
