|
Hirth HM 4
Hirth Engines GmbH is an engine manufacturer based in Benningen, Germany. It is currently a part of the UMS Aero Group. Hirth began manufacturing aero engines in the 1920s, was taken over by Heinkel in WWII to develop the Heinkel-Hirth jet engines, and today specialises in small two-stroke engines for light aircraft and other applications. History Hellmuth Hirth and Hirth Motoren The company was founded by Hellmuth Hirth as Versuchsbau Hellmuth Hirth. The first commercial engine, the 4-cylinder inverted in-line HM 60, first ran in June 1923 and was sold from the next year. Its quality was extremely high and it formed the foundation of the business.Gunston, Bill (1998). ''World Encyclopaedia of Aero Engines'', 4th Edition. Patrick Stephens Ltd (PSL). The company was renamed Leichtmetall-Werke GmbH, Elektronmetall GmbH and eventually separated from the aero engine manufacturing to form Mahle GmbH as a manufacturer of light alloy engine components, specifically the magnesium al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellmuth Hirth
Hellmuth Hirth (; April 24, 1886 – July 1, 1938) was a German engineer who founded the Mahle GmbH and Hirth companies, manufacturing engine components and complete aircraft engines respectively. Biography Hirth was born in Heilbronn, the son of engineer and tool-maker Albert Hirth. He was the elder brother of Wolf Hirth who would go on to become a famous sailplane designer and manufacturer. As a young man, Hirth was sent to the United States to train with the Edison General Electric Company as a mechanic. While abroad, he developed an interest in aircraft, and on his return to Germany in 1909 became involved with the emerging industry. He built his own aircraft in 1910 and soon went to work for the Zeppelin Company building airships. He also became a prominent pilot. Since 1914 he was a Leutnant of the Fliegertruppe, winning the Iron Cross II and being severely wounded. In 1920, he founded his own company to manufacture engine components out of light alloys, and by 1927 sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 178
The Heinkel He 178 was an experimental aircraft designed and produced by the German aircraft manufacturer Heinkel. It was the world's first aircraft to fly using the thrust from a turbojet engine. The He 178 was developed to test the jet propulsion concept devised by the German engineer Hans von Ohain during the mid-1930s. Having secured the industrial support of Ernst Heinkel, von Ohain was able to demonstrate a working turbojet engine, the Heinkel HeS 1, in September 1937. Heinkel pursued development of the He 178 as a private venture, independent of the German authorities and the Luftwaffe, keeping the aircraft relatively secret for much of its development. Heinkel was keen not only to demonstrate the capabilities of aviation gas turbines, but had a separate emphasis on developing high-speed flight technologies. On 27 August 1939, the He 178 V1, the first prototype, performed its maiden flight, piloted by Erich Warsitz. This flight, which only lasted for six minutes, had been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirth HM 506
Hirth Engines GmbH is an engine manufacturer based in Benningen, Germany. It is currently a part of the UMS Aero Group. Hirth began manufacturing aero engines in the 1920s, was taken over by Heinkel in WWII to develop the Heinkel-Hirth jet engines, and today specialises in small two-stroke engines for light aircraft and other applications. History Hellmuth Hirth and Hirth Motoren The company was founded by Hellmuth Hirth as Versuchsbau Hellmuth Hirth. The first commercial engine, the 4-cylinder inverted in-line HM 60, first ran in June 1923 and was sold from the next year. Its quality was extremely high and it formed the foundation of the business.Gunston, Bill (1998). ''World Encyclopaedia of Aero Engines'', 4th Edition. Patrick Stephens Ltd (PSL). The company was renamed Leichtmetall-Werke GmbH, Elektronmetall GmbH and eventually separated from the aero engine manufacturing to form Mahle GmbH as a manufacturer of light alloy engine components, specifically the magnesium al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirth HM 504
The Hirth HM 504 is a four-cylinder air-cooled inverted inline engine. The HM 504 was a popular engine for light aircraft of the 1930s-1940s, and it was used to power a number of Germany's trainer aircraft of World War II. The engine featured a cast magnesium alloy crankcase. The Hitachi Hatsukaze Model 11 was a Japanese licensed version. Applications * Bücker Bü 131 * Bücker Bü 181 *BŻ-1 GIL (helicopter) *Klemm Kl 35 *Matra-Cantinieau MC-101 (helicopter) *Morane-Saulnier MS.603 * Payen Arbalète *Repülőgépgyár Levente II The Repülőgépgyár Levente series is a Hungarian two-seat trainer and liaison aircraft from World War II. Thanks to their simple, easy-to-repair design, despite its seemingly rudimentary appearance, they were well-suited to army co-operation ... Specifications (HM 504 A-2) See also References External linksGöbler-Hirthmotoren Company website (nothing in there about pre-war engines) {{Hirth aeroengines Hirth aircraft engines Air-coo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirth HM 501
The Hirth HM 501 was a 6-cylinder air-cooled inverted in-line engine that was developed by Hirth Motoren GmbH in the late 1930s, from the 4-cylinder HM 500 and used principally on the submarine-born Arado Ar 231. Applications *Arado Ar 231 The Arado Ar 231 was a lightweight floatplane, developed during World War II in Germany as a scout plane for submarines by Arado. The need to be stored inside the submarine necessitated compromises in design that made this single-seat seaplane ... Specifications (HM 501A) References Further reading * {{Hirth aeroengines Hirth aircraft engines Air-cooled aircraft piston engines 1930s aircraft piston engines Inverted aircraft piston engines Straight-six engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirth HM 500
The Hirth HM 500 was a German four-cylinder air-cooled inverted inline engine developed from the Hirth HM 504 in 1938. Although developing the same output of the HM 504 (105 hp) and keeping the same capacity and bore, the HM 500 was a very different engine; the new HM 500 had a one-piece "closed" crankcase for simplified manufacture. The new cooling system reduced cylinder temperatures considerably (15 °C less), and the fuel consumption was also reduced. The HM 500 carried a twin-magneto instead of the two separate magnetos as on the old HM 504. All these changes made that the HM 500 resulted a 12% lighter than the HM 504 and the front surface 37% less than the previous HM 504.Flugmotor Hirth HM 500, Luftfahrt International Nr 6, Dec. 1974 Otherwise the HM 500 continued the typical Hirth use of built-up crankshafts and roller-bearings for crankshaft & connecting rods (Hirth patents) as well as magnesium-alloy crankcases which made Hirth engines so popular in the 193 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saab AB
Saab AB (originally , later just SAAB and Saab Group) is a Swedish aerospace and defence company, founded in 1937. Headquartered in Stockholm, the development and the manufacturing is undertaken in Linköping. Saab produced automobiles from 1947 until 1990 when the automobile division was spun off as Saab Automobile, a joint venture with General Motors. The joint venture ended in 2000 when GM took complete ownership. From 1968 onwards the company was in a merger with commercial vehicle manufacturer Scania-Vabis, known as Saab-Scania. The two were de-merged in 1995 by the new owners, Investor AB. Despite the demerger, both Saab and Scania share the right to use the griffin logo, which originates from the coat of arms of the Swedish region of Scania. History "Svenska Aeroplan AktieBolag" (Swedish for "Swedish Aeroplane Company Limited") (SAAB) was founded in 1937 in Trollhättan, with the merger of Svenska Aero AB (SAAB) and Linköping based ASJA the headquarters moved to Lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UMS Skeldar
UMS Skeldar AG is an aircraft manufacturer based primarily in Switzerland, and with manufacturing facilities in Sweden. It was formed in 2018 as a joint venture between majority shareholder UMS Aero Group and Saab. Its principle product is the Skeldar range of unmanned aircraft systems (UAS) rotorcraft. The company also owns the Hirth company, whose range of light two-stroke engines provide the power units for the rotorcraft. Formation Swiss UAV AG was a privately owned company based in Switzerland that designed and manufactured unmanned aerial vehicles (drones). It entered a partnership with Saab in May 2009. In 2013 Swiss UAV was acquired by Unmanned Systems AG and the following year merged into UMS Aero Group alongside Swedish company Unmanned Systems AB. At the end of 2015 UMS Aero Group and Saab, manufacturers of the Skeldar unmanned vehicle, formed UMS Skeldar, a joint venture in which UMS Aero Group is the majority partner. Besides its Swiss headquarters and manufacturing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Cycle
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later two-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Göbler
Hans may refer to: __NOTOC__ People * Hans (name), a masculine given name * Hans Raj Hans, Indian singer and politician ** Navraj Hans, Indian singer, actor, entrepreneur, cricket player and performer, son of Hans Raj Hans ** Yuvraj Hans, Punjabi actor and singer, son of Hans Raj Hans * Hans clan, a tribal clan in Punjab, Pakistan Places * Hans, Marne, a commune in France * Hans Island, administrated by Greenland and Canada Arts and entertainment * ''Hans'' (film) a 2006 Italian film directed by Louis Nero * Hans (Frozen), the main antagonist of the 2013 Disney animated film ''Frozen'' * ''Hans'' (magazine), an Indian Hindi literary monthly * ''Hans'', a comic book drawn by Grzegorz Rosiński and later by Zbigniew Kasprzak Other uses * Clever Hans, the "wonder horse" * ''The Hans India'', an English language newspaper in India * HANS device, a racing car safety device *Hans, the ISO 15924 code for Simplified Chinese script See also *Han (other) *Hans im Glück, a Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowmobile
A snowmobile, also known as a Ski-Doo, snowmachine, sled, motor sled, motor sledge, skimobile, or snow scooter, is a motorized vehicle designed for winter travel and recreation on snow. It is designed to be operated on snow and ice and does not require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby. Older snowmobiles could generally accommodate two people; however, most snowmobiles manufactured since the 1990s have been designed to only accommodate one person. Snowmobiles built with the ability to accommodate two people are referred to as "2-up" snowmobiles or "touring" models and make up an extremely small share of the market. Most snowmobiles do not have any enclosures, except for a windshield, and their engines normally drive a continuous track at the rear. Skis at the front provide directional control. Early snowmobiles used simple rubber tracks, but modern snowmobiles' tracks are usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stationary Engine
A stationary engine is an engine whose framework does not move. They are used to drive immobile equipment, such as pumps, generators, mills or factory machinery, or cable cars. The term usually refers to large immobile reciprocating engines, principally stationary steam engines and, to some extent, stationary internal combustion engines. Other large immobile power sources, such as steam turbines, gas turbines, and large electric motors, are categorized separately. Stationary engines were once widespread in the era when each factory or mill generated its own power, and power transmission was mechanical (via line shafts, belts, gear trains, and clutches). Applications for stationary engines have declined since electrification has become widespread; most industrial uses today draw electricity from an electrical grid and distribute it to various individual electric motors instead. Engines that operate in one place, but can be moved to another place for later operation, are calle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
