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Häfeli DH-1
The Häfeli DH-1 was a 1910s Swiss two-seat reconnaissance aircraft, built by the aircraft department of the Federal Construction Works (''Eidgenoessische Konstruktionswerkstaette'', K+W) at Thun, Switzerland. Development and design In 1915 K + W set up their aircraft department and employed August Häfeli as chief engineer. Häfeli had previously designed the AGO C.I and AGO C.II, German reconnaissance biplanes. His first design was the Häfeli DH-1, similar in concept to his designs for AGO Flugzeugwerke. The DH-1 was a three-bay biplane of wood and fabric construction, it had a fuselage pod with tandem seating for the two-man crew and twin booms mounting the tail. The DH-1 was powered by an Argus As II The Argus As II was a six-cylinder, in-line, water-cooled, aircraft engine produced in Germany by Argus Motoren in 1914. The Argus As II produced at 1,350 rpm.Der Argus Flugmotor, 1916 Design and development The Argus As II was a major re ... engine built under lic ... [...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] |
AGO Flugzeugwerke
AGO Flugzeugwerke was a German aircraft manufacturing company from 1911 until 1945. The initials AGO had a variety of meanings (such as ''Aktiengesellschaft Otto'') during the company's lifetime, but in its final version stood for ''Apparatebau GmbH Oschersleben''. At its peak, the company employed around 4,500 people. Foundation AGO was founded in 1911 in Munich as ''Flugmaschinenwerke Gustav Otto'' by Gustav Otto and a Dr Alberti. Gustav, the son of Nicolaus Otto – inventor of the four-stroke engine, was a pioneer aviator (pilot's licence No. 34) and engine-builder. As was usual in those days, a flying school was attached to the business – one of its later students was Ernst Udet. The company's first successful aircraft under head designer, Gabriel Letsch, was an observation biplane with a pusher propeller that soon became the standard equipment of the '' Bayerischen Fliegertruppe''. The machine was powered by a 75 kW (100 hp) engine of the firm's own design, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pusher Aircraft
In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in normal operation. Pusher configuration describes this specific (propeller or ducted fan) thrust device attached to a craft, either aerostat (airship) or aerodyne (aircraft, WIG, paramotor, rotorcraft) or others types such as hovercraft, airboat and propeller-driven snowmobiles. "Pusher configuration" also describes the layout of a fixed-wing aircraft in which the thrust device has a pusher configuration. This kind of aircraft is commonly called a pusher. Pushers have been designed and built in many different layouts, some of them quite radical. History The rubber-powered "Planophore", designed by Alphonse Pénaud in 1871, was an early successful model aircraft with a pusher propeller. Many early aircraft (especially biplanes) were ... [...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 also o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1910s Swiss Military Reconnaissance 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 Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bühler Group
The Bühler Holding AG is a Swiss multinational plant equipment manufacturer based in Uzwil, Switzerland. It is known for plant and equipment and related services for processing foods and manufacturing advanced materials. The organization holds leading market positions worldwide in the fields of technology as well as processes for transforming grain into flour and animal feeds, producing pasta and chocolate, and manufacturing die cast components. The core technologies of the Group are in the field of mechanical and thermal process engineering. Bühler Group operates in over 140 countries, has a global payroll of 12,490, 30 manufacturing sites worldwide and generated revenues of CHF 2,70 billion in 2021. History Establishment and expansion Bühler Group emerged from the iron foundry in Gupfen in Uzwil with two employees that was established on February 10, 1860 by Adolf Bühler Sr., who was a native and resident of Hombrechtikon. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argus As II
The Argus As II was a six-cylinder, in-line, water-cooled, aircraft engine produced in Germany by Argus Motoren in 1914. The Argus As II produced at 1,350 rpm.Der Argus Flugmotor, 1916 Design and development The Argus As II was a major redesign compared to the preceding Argus 120/130 hp and Argus 140/150 hp six-cylinder engines. Alongside many other changes, the major improvements were the introduction of newly designed steel cylinders and the completely redesigned crankcase, which now had an integrated oil pump and a completely modernized lubrication system. The cylinders were machined from steel separately, with intake and exhaust ducts as well as cooling jackets welded in place in a separate step. While the steel cylinders were still combined to pairs, sharing the same cooling jacket, the change to steel cylinders was accompanied by a change in the design of the intake ducts and the pushrod arrangement. Contrary to the old design, which had the two intake ducts conjo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft/page Content
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] |
Thun
, neighboring_municipalities= Amsoldingen, Heiligenschwendi, Heimberg, Hilterfingen, Homberg, Schwendibach, Spiez, Steffisburg, Thierachern, Uetendorf, Zwieselberg , twintown = , website = www.thun.ch Thun (french: Thoune) is a town and a municipality in the administrative district of Thun in the canton of Bern in Switzerland. It is located where the Aare flows out of Lake Thun (Thunersee), southeast of Bern. the municipality has almost about 45,000 inhabitants and around 80,000 live in the agglomeration. Besides tourism, machine and precision instrument engineering, the largest garrison in the country, the food industry, armaments and publishing are of economic importance to Thun. The official language of Thun is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect. History The area of what is now Thun was inhabited since the Neolithic age (mid-3rd millennium BC). Durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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