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Fokker D.IV
The Fokker D.IV was a biplane fighter designed by the Fokker Aircraft Company () during the First World War for the Imperial German Army's () Imperial German Air Service (). It was a development of the D.I with a more powerful engine and armament. It saw service in limited numbers beginning in late 1916 because structural problems caused by the use of poor-quality components coupled with poor workmanship at the factory. Only a single aircraft is known to have served in a front-line combat unit before all Fokker fighters were withdrawn from those units at the end of 1916 to serve in home defense and training units because of those problems. Development The Fokker D.IV had a more powerful Mercedes D.III engine than the Mercedes D.I engine of the D.I and its armament was increased to a pair of fixed, forward-firing 7.92 mm (.312 in) LMG 08/15 machine guns. The D.IV was also designed to use ailerons for roll control rather than the wing warping used in earlier Fokker fighte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling 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 Magazine, 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 outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maschinengewehr 08
The MG 08 ( 08) is a heavy machine gun (HMG) which served as the standard HMG of the Imperial German Army during World War I. It was an adaptation of Hiram Maxim's 1884 Maxim gun design, and was produced in a number of variants during the war. The MG 08 also saw service during World War II in the infantry divisions of the German Army, although by the end of the war it had mostly been relegated to second-rate "fortress" units. Designated after 1908, the year it was adopted by the Imperial German Army, the MG 08 was a development of the license-made 01. The MG 08's rate of fire depends on the lock assembly used and averages 500 rounds per minute for the Schloss 08 and 600 rounds per minute for the Schloss 16. Additional telescopic sights were also developed and used in large quantities during World War I to enable the MG 08 to be used in long-range direct fire and indirect fire support roles. Development and adoption The German Rifle Commission beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fokker Aircraft
Fokker (; ) was a Dutch aircraft manufacturer that operated from 1912 to 1996. The company was founded by the Dutch aviator Anthony Fokker and became famous during World War I for its fighter aircraft. During its most successful period in the 1920s and 1930s, Fokker dominated the civil aviation market. The company's fortunes declined over the course of the late 20th century; it declared bankruptcy in 1996, and its operations were sold to competitors. History Fokker in Germany At age 20, while studying in Germany, Anthony Fokker built his initial aircraft, the ''Spin'' (Spider)—the first Dutch-built plane to fly in his home country. Taking advantage of better opportunities in Germany, he moved to Berlin, where in 1912, he founded his first company, Fokker Aeroplanbau, later moving to the Görries suburb just southwest of Schwerin (at ), where the current company was founded, as Fokker Aviatik GmbH, on 12 February 1912. World War I Fokker capitalized on having sold several F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1910s German Fighter Aircraft
Year 191 ( CXCI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Apronianus and Bradua (or, less frequently, year 944 ''Ab urbe condita''). The denomination 191 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Parthia * King Vologases IV of Parthia dies after a 44-year reign, and is succeeded by his son Vologases V. China * A coalition of Chinese warlords from the east of Hangu Pass launches a punitive campaign against the warlord Dong Zhuo, who seized control of the central government in 189, and held the figurehead Emperor Xian hostage. After suffering some defeats against the coalition forces, Dong Zhuo forcefully relocates the imperial capital from Luoyang to Chang'an. Before leaving, Dong Zhuo orders his troops to loot the tombs of the Han emperors, and then destroy Luo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straight-six Engine
A straight-six engine (also referred to as an inline-six engine; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine balance, resulting in fewer vibrations than other designs of six or fewer cylinders. Until the mid-20th century, the straight-six layout was the most common design for engines with six cylinders. However, V6 engines gradually became more common in the 1970s and by the 2000s, V6 engines had replaced straight-six engines in most light automotive applications. Characteristics In terms of packaging, straight-six engines are almost always narrower than a V6 engine or V8 engine, but longer than straight-four engines, V6s, and most V8s. Compared to V-configuration engines with similar power and displacement, the straight configuration has fewer injectors, a single head, and a single exhaust manifold, all contributing to better reliability and perfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benz Bz
Benz, an old Germanic clan name dating to the fifth century (related to "bear", "war banner", "gau", or a "land by a waterway") also used in German () as an alternative for names such as Berthold, Bernhard, or Benedict, may refer to: People Surname * Amy Benz (born 1962), American golfer * Bertha Benz (1849–1944), German marketing entrepreneur who was the first to drive an automobile for a long distance, wife of Carl Benz * Carl Benz (1844–1929), German engineer, inventor, and entrepreneur who built the first patented automobile * Derek Benz (born 1971), American author of fantasy fiction for children * Edward J. Benz, Jr., professor of genetics * Gerold Benz (1921–1987), German politician * Gary R. Benz, producer of the GRB Studios * Joe Benz (1886–1957), American Major League Baseball pitcher * Joseph Benz (born 1944), Swiss former bobsledder, Olympic and world champion * Julie Benz (born 1972), American actress * Kafi Benz (born 1941), American author, artist, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Front (World War I)
The Western Front was one of the main Theatre (warfare), theatres of war during World War I. Following the outbreak of war in August 1914, the Imperial German Army, German Army opened the Western Front by German invasion of Belgium (1914), invading Luxembourg and Belgium, then gaining military control of important industrial regions in Third Republic of France, France. The German advance was halted with the First Battle of the Marne, Battle of the Marne. Following the Race to the Sea, both sides dug in along a meandering line of fortified trench warfare, trenches, stretching from the North Sea to the Swiss frontier with France, the position of which changed little except during early 1917 and again in 1918. Between 1915 and 1917 there were several offensives along this Front (military), front. The attacks employed massive artillery bombardments and massed infantry advances. Entrenchments, machine gun emplacements, barbed wire, and artillery repeatedly inflicted severe casualties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jasta
A ''Jagdstaffel'' (plural ''Jagdstaffeln'', abbreviated to Jasta) was a fighter ''Staffel'' (squadron) of the German Imperial ''Luftstreitkräfte'' during World War I. Background Before April 1916, ''Die Fliegertruppen des deutschen Kaiserreiches'', which had been established in 1912 as the aviation service of the Imperial German Army, was largely organised in small general purpose units ('' Feldfliegerabteilungen, FFA'' Field Flyer Detachments). The first specialist bombing and close support units began forming during 1915. The ''FFA'' were subordinate to the Army command to which they were attached. By the end of the spring of 1915, the first German fighter aircraft were being issued in small numbers to the ''FFA''. At this period their function was seen almost entirely as "protection" for the reconnaissance missions which were the primary duty of the ''Fliegertruppe''. Pilots like Kurt Wintgens, Max Immelmann and Oswald Boelcke pioneered the aggressive use of the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Static Load Testing
Static load testing is an ''in situ'' type of load testing used in geotechnical investigation to determine the bearing capacity of deep foundation A pile or piling is a vertical structural element of a deep foundation, driven or drilled deep into the ground at the building site. A deep foundation is a type of foundation (architecture), foundation that transfers building loads to the e ...s prior to the construction of a building. It differs from the statnamic load test and dynamic load testing in that the pressure applied to the pile is slower. Static load testings are performed in order to measure a design's axial tension or axial compression. It can also be used to measure its deflected shape under lateral load. Kentledge load testing method Kentledge refers to iron weights used as permanent ship ballast, or iron or concrete weights used in load testing. This method involves the construction of a platform upon which massive weights are placed. These weights bear dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing Warping
Wing warping was an early system for lateral (roll) control of a fixed-wing aircraft or kite. The technique, used and patented by the Wright brothers, consisted of a system of pulleys and cables to twist the trailing edges of the wings in opposite directions. In many respects, this approach is similar to that used to trim the performance of a paper airplane by curling the paper at the back of its wings. Description In 1900, Wilbur Wright wrote, "...my observations of the flight of birds convince me that birds use more positive and energetic methods of regaining equilibrium than that of shifting the center of gravity...they regain their lateral balance...by a torsion of the tips of the wings. If the rear edge of the right wing tip is twisted upward and the left downward the bird becomes an animated windmill and instantly begins to turn, a line from its head to its tail being the axis." After Wilbur demonstrated the method, Orville noted, "From this it was apparent that the wings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ailerons
An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement around the aircraft's longitudinal axis), which normally results in a change in flight path due to the tilting of the lift vector. Movement around this axis is called rolling or banking. Considerable controversy exists over credit for the invention of the aileron. The Wright brothers and Glenn Curtiss fought a years-long legal battle over the Wright patent of 1906, which described a method of wing-warping to achieve lateral control. The brothers prevailed in several court decisions which found that Curtiss's use of ailerons violated the Wright patent. Ultimately, the First World War compelled the U.S. Government to legislate a legal resolution. A much earlier aileron concept was patented in 1868 by British scientist Matthew Piers Watt Boulton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
