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Pfalz D.VII
The Pfalz D.VII was a German biplane fighter aircraft from World War I. It was not put into production. Design and development The D.VII was a single-bay biplane with staggered, parallel-chord wings. It had simple parallel interplane struts; the upper centre section was supported on each side by a three-sided rectangular frame, open at the bottom where it was mounted on the upper fuselage. There were externally connected ailerons on both upper and lower planes. Behind the D.VII's rotary engine its fuselage was of rounded cross-section, with the single-seat, open cockpit just below the upper wing's trailing edge, where there was a small cut-out for better upward vision. The horizontal tail was mounted at mid-fuselage; the fin was straight-edged and carried a full, rounded and horn balanced rudder. The D.VII had a simple fixed conventional undercarriage, with mainwheels on a single axle supported at each end by a thin V-form pair of struts. There was a generous tailskid. Th ... [...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 Wikimedia project, 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 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 outside organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conventional Undercarriage
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 133. Aviation Supplies & Academics, 1997. From the Ground Up, 27th edition, page 11 The term taildragger is also used, although some argue it should apply only to those aircraft with a tailskid rather than a wheel. The term "conventional" persists for historical reasons, but all modern jet aircraft and most modern propeller aircraft use tricycle gear. History In early aircraft, a tailskid made of metal or wood was used to support the tail on the ground. In most modern aircraft with conventional landing gear, a small articulated wheel assembly is attached to the rearmost part of the airframe in place of the skid. This wheel may be steered by the pilot through a connection to the rudder pedals, allowing the rud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pfalz Aircraft
Pfalz, Pfälzer, or Pfälzisch are German words referring to Palatinate. They may refer to: Places *Pfalz, the Palatinate (region) of Germany **Nordpfalz, the North Palatinate **Vorderpfalz, the Anterior Palatinate **Südpfalz, the South Palatinate **Westpfalz, the West Palatinate *Pfalz, the Palatinate wine region of Germany **Pfälzische Weinkönigin, the Palatine Wine Queen elected representative of the region *the ''Pfalz'', nickname for Pfalzgrafenstein Castle, Germany *Pfälzerwald, the Palatinate Forest *Rheinland-Pfalz, the current federal German state of Rhineland-Palatinate Historic states *''Kurpfalz'', the Electoral Palatinate of the Holy Roman Empire. Historic houses and states include: **Pfalz-Birkenfeld, the House of Palatinate-Birkenfeld ** Pfalz-Birkenfeld-Bischweiler ** Pfalz-Birkenfeld-Gelnhausen ** Pfalz-Birkenfeld-Zweibrücken ** Pfalz-Kleeburg ** Pfalz-Landsberg ** Pfalz-Lautern ** Pfalz-Mosbach ** Pfalz-Mosbach-Neumarkt **Pfalz-Neuburg **Pfalz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1910s German Fighter Aircraft
Year 191 ( CXCI) was a common year starting on Friday (link will display the full calendar) 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biplanes
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] |
Pfalz D
Pfalz, Pfälzer, or Pfälzisch are German words referring to Palatinate. They may refer to: Places *Pfalz, the Palatinate (region) of Germany **Nordpfalz, the North Palatinate **Vorderpfalz, the Anterior Palatinate **Südpfalz, the South Palatinate **Westpfalz, the West Palatinate *Pfalz, the Palatinate wine region of Germany **Pfälzische Weinkönigin, the Palatine Wine Queen elected representative of the region *the ''Pfalz'', nickname for Pfalzgrafenstein Castle, Germany *Pfälzerwald, the Palatinate Forest *Rheinland-Pfalz, the current federal German state of Rhineland-Palatinate Historic states *''Kurpfalz'', the Electoral Palatinate of the Holy Roman Empire. Historic houses and states include: **Pfalz-Birkenfeld, the House of Palatinate-Birkenfeld ** Pfalz-Birkenfeld-Bischweiler ** Pfalz-Birkenfeld-Gelnhausen ** Pfalz-Birkenfeld-Zweibrücken ** Pfalz-Kleeburg ** Pfalz-Landsberg ** Pfalz-Lautern ** Pfalz-Mosbach ** Pfalz-Mosbach-Neumarkt **Pfalz-Neuburg **Pfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adlershof
Adlershof (, literally "Eagle's Court") is a locality (') in the borough (') Treptow-Köpenick of Berlin, Germany. Adlershof is home to the new City of Science, Technology and Media ( WISTA), located on the southwestern edge of the locality. History A part of the area known today as the "City of Science, Technology and Media", was once known as the Johannisthal Air Field. Germany's first motorized aircraft took off from here at the beginning of the 20th century. Albatros, Fokker, Rumpler and Wright made Adlershof-Johannisthal famous. In 1912 the German Experimental Institute for Aviation ( Deutsche Versuchsanstalt für Luftfahrt – DVL) made Adlershof its headquarters. Laboratories, motor test beds, wind tunnels and hangars were erected in the 20s and 30s and are historical landmarks today. World War I Adlershof is particularly well known for a series of competitions between various aviation firms' fighter aircraft designs that were held there starting in 1918. This was the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller (aircraft)
An aircraft propeller, also called an airscrew,Beaumont, R.A.; ''Aeronautical Engineering'', Odhams, 1942, Chapter 13, "Airscrews". converts rotary motion from an engine or other power source into a swirling slipstream which pushes the propeller forwards or backwards. It comprises a rotating power-driven hub, to which are attached several radial airfoil-section blades such that the whole assembly rotates about a longitudinal axis. The blade pitch may be fixed, manually variable to a few set positions, or of the automatically variable "constant-speed" type. The propeller attaches to the power source's driveshaft either directly or through reduction gearing. Propellers can be made from wood, metal or composite materials. Propellers are most suitable for use at subsonic airspeeds generally below about , although supersonic speeds were achieved in the McDonnell XF-88B experimental propeller-equipped aircraft. Supersonic tip-speeds are used in some aircraft like the Tupolev Tu-95, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens-Halske Sh
Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens. It was founded on 12 October 1847 as ''Telegraphen-Bauanstalt von Siemens & Halske'' by Werner von Siemens and Johann Georg Halske. The company, located in Berlin- Kreuzberg, specialised in manufacturing electrical telegraphs according to Charles Wheatstone's patent of 1837. In 1848, the company constructed one of the first European telegraph lines from Berlin to Frankfurt am Main. Siemens & Halske was not alone in the realm of electrical engineering. In 1887, Emil Rathenau had established '' Allgemeine Elektrizitäts-Gesellschaft'' (AEG), which became a long-time rival. In 1881, Siemens & Halske built the Gross-Lichterfelde Tramway, the world's first electric streetcar line, in the southwestern Lichterfelde suburb of Berlin, followed by the Mödling and Hinterbrühl Tram near Vienna, the first electrical interurban tram in Austria-Hungary. 1882 saw the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goebel Goe
Goebel is a surname. Notable people with the surname include: * Charles Paul Goebel (born 1956), American architect and land planner * Brad Goebel (born 1969), professional American football player * Ed Goebel (1898–1959), Major League Baseball player * Evandro Goebel (born 1986), Brazilian footballer * Florian Goebel (1972–2008), German astrophysicist * Günter Goebel (1917–1993), German officer during World War II * Joey Goebel (born 1980), American author * Justus Goebel (1860–1919), American politician * Karl Ritter von Goebel (1855–1932), German botanist * Louis S. Goebel (1839–1915), New York politician * Paul G. Goebel (1901–1988), American football player * Peter Goebel, president of Elmhurst College * Reinhard Goebel (born 1952), German conductor and violinist * Timothy Goebel (born 1980), American figure skater * Walther F. Goebel (1899—1993), American immunologist * William Goebel (1856–1900), 34th Governor of Kentucky; assassinated See also * G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oberursel U
Oberursel (Taunus) () is a town in Germany and part of the Frankfurt Rhein-Main urban area. It is located to the north west of Frankfurt, in the Hochtaunuskreis county. It is the 13th largest town in Hesse. In 2011, the town hosted the 51st Hessentag state festival. Geography Extent of municipal area The maximum distance from the northern town border to the southern border is the maximum distance from east to west is . Altitude *Krebsmühle (Weißkirchen): 138 m above sea level *Town Hall: 198 m above sea level *Hohemark: 300 m above sea level *The nearly Grosse Feldberg is the highest spot in the Taunus: 820 m above sea level Neighbouring communities To the north Oberursel borders with Schmitten, to the east with Bad Homburg vor der Höhe, to the south-east with Frankfurt, to the southwest with Steinbach and to the west with Kronberg. Town districts Besides the town centre (including Bommersheim), Oberursel is divided into the districts Oberstedten (population 6,118), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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