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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 ...
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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 ...
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Alfa Romeo 115
The Alfa Romeo 115 was an Italian six-cylinder air-cooled inverted inline engine for aircraft use, mainly for training and light planes, based on the de Havilland Gipsy Six engine. Production totalled approximately 1,600 units. Derivatives of the 115 include the -1, bis, ter and Alfa Romeo 116. Description The Alfa Romeo 115 series of engines closely follows the original de Havilland Gipsy Six engines in having one-piece Elektron casting crankcases with cover plates, steel cylinders, finned for cooling, and detachable aluminium alloy cylinder heads. The six-throw one-piece counterbalanced crankshaft is carried in seven plain journal bearings and the propeller is driven directly by the crankshaft. Variants ;110ter: :4-cylinder version of the 115ter ;115-1 (115-I): ;115bis (115-2 / 115-II): ;115ter (115-3 / 115-III): ;116-1 (116-I): The 115 bored out to developing at 2,360 rpm, otherwise similar. Applications *Ambrosini SAI.3 * Bestetti BN.1 (one prototype) * Breda Ba.75 ...
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Air-cooled Aircraft Piston Engines
Air-cooled engines rely on the circulation of air directly over heat dissipation fins or hot areas of the engine to cool them in order to keep the engine within operating temperatures. In all combustion engines, a great percentage of the heat generated (around 44%) escapes through the exhaust, not through the metal fins of an air-cooled engine (12%). About 8% of the heat energy is transferred to the oil, which although primarily meant for lubrication, also plays a role in heat dissipation via a cooler. ''Air-cooled engines'' are used generally in applications which would not suit liquid cooling, as such modern air-cooled engines are used in motorcycles, general aviation aircraft, lawn mowers, generators, outboard motors, pump sets, saw benches and auxiliary power units. Introduction Most modern internal combustion engines are cooled by a closed circuit carrying liquid coolant through channels in the engine block and cylinder head, where the coolant absorbs heat, to a heat ...
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Hirth Aircraft Engines
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 ...
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Walter Minor
The Walter Minor is a family of four- and six-cylinder inverted inline air-cooled engines, developed under auspices of ing. Šimůnek and used on light aircraft. First produced in 1929, the Minor engines' family has an advanced design for the period and sports steel cylinders, aluminum heads and overhead valves, with identical bore and stroke of and , respectively. Typical power ratings varied from . After Walter concentrated on the turbine powerplants only, the production of piston engines has been transferred to the Avia company that further developed the family, bringing fuel injection, as the Avia M-137 and M-337. Nowadays the smallest of the family, the four-cylinder carburetted Minor, is produced by a small company in the Czech Republic, while the M337 was available from the LOM Prague. Variants 4 Cylinder ;Minor 4-I: ;Minor 4-II: ;Minor 4-III: ;Minor 4-IIIS: A 4-III fitted with a crankshaft driven supercharger. ;Minor M 332 (4 cyl.) 6 Cylinder ;Minor 6-I: ;Minor 6-II ...
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Menasco C4
The Menasco Pirate series were four-cylinder, air-cooled, in-line, inverted aero-engines, built by the Menasco Motors Company of Burbank, California, for use in light general and sport aircraft during the 1930s and 1940s. The Menasco engines came in both normally aspirated and supercharged forms, with the supercharged models exhibiting superior performance at higher altitudes, with a relatively small increase in dimensions and weight. The supercharged models had the ''S'' suffix added to their designation to show supercharging.Parker, Dana T. ''Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II,'' pp. 122–24, Cypress, CA, 2013. Variants ;Menasco A-4 Pirate (also listed as Menasco 4A) :90 hp. ;Menasco B-4 Pirate :95 hp. ;Menasco C-4 Pirate (Military designation L-365) :125 hp. Compression ratio 5.8: 1, dry weight 300 lb ;Menasco Pirate C-4S :Super-charged 150 hp. ;Menasco D-4 Pirate :125 hp, compression ratio 5.5:1, d ...
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Elizalde Tigre IV
The Elizalde Tigre IV, also known as the ENMA Tigre IV, is a Spanish four-cylinder inverted air-cooled engine designed and built by Elizalde SA shortly after the Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlism, Carlists, and The Rebellion ( es, La Rebeli .... Variants / Designations ;Tigre IVA : version. ;Tigre IVB : version. ;Tigre G-IV A: IVA / G-4 (L)-00-125 ;Tigre G-IV A2: IVA / G-4 (L)-00-125 ;Tigre G-IV A5: ;Tigre G-IV B: IVB / G-4 (L)-00-150 ;Tigre G-IV B5: ;Tigre G-4 (L)-00-125: IVA / G-IV A ;Tigre G-4 (L)-00-150: IVB / G-IV B Applications * CASA 1.131 * Dornier Do 25 * AISA I-115 * INTA HM.1 Survivors Approximately 30 ENMA Tigre IV engines remain airworthy in Britain (as of July 2009), all powering CASA 1.131 aircraft which are Spanish licensed-built versions of the ''Bücker Jungmann''. A ...
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De Havilland Gipsy Minor
The de Havilland Gipsy Minor or Gipsy Junior is a British four-cylinder, air-cooled, inline engine that was used primarily in the de Havilland Moth Minor monoplane, both products being developed in the late 1930s. Design and development The engine was a simplified and smaller version of the earlier de Havilland Gipsy. It featured only one magneto where dual ignition was normal for the Gipsy series of engines. A total of 171 engines were produced, including 100 built in Australia, production moving to that country due to the start of the Second World War.Lumsden 2003, p.136. Applications *De Havilland Moth Minor *Short Scion *Druine Turbi Engines on display *A de Havilland Gipsy Minor engine is on public display at the de Havilland Aircraft Heritage Centre, London Colney, Hertfordshire Hertfordshire ( or ; often abbreviated Herts) is one of the home counties in southern England. It borders Bedfordshire and Cambridgeshire to the north, Essex to the east, Greater London t ...
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Blackburn Cirrus Minor
The Blackburn Cirrus Minor is a British four-cylinder, inverted, in-line air-cooled aero-engine that was designed and built by the Cirrus Engine Section of Blackburn Aircraft Limited in the late 1930s. Design and development The Cirrus Minor started life as a clean-sheet replacement for the original Cirrus and Hermes series of light aircraft engines. Design was led by Technical Director C. S. Napier, son of Montague Napier, and was already under way when in 1934 Cirrus-Hermes Engineering was taken over by the Blackburn Aeroplane & Motor Company and moved to Brough in Yorkshire."A New Small Engine", ''Flight'', 28 February 1935, pp.218-9."The 'Cirrus Major'", ''Flight'', 13 June 1935. Supplement. Napier remained Technical Director and, while he completed the development and initial sales of the Cirrus Minor and its larger stablemate the Cirrus Major, Blackburn kept Cirrus Hermes Engineering as a separate company (though without the hyphen in its name). Although completely new d ...
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Argus As 8
The Argus As 8 was a four-cylinder, air-cooled, inverted inline aircraft engine produced in Germany by Argus Motoren in the 1930s. Variants ;As 8A:Initial production version maximum for 5 minutes, continuous. ;As 8B:A more powerful variant developing maximum for 5 minutes, continuous. ;As 8R:A variant produced for sport aircraft, particularly for competition use, developing for take-off. Featuring: :*Increased compression ratio, from 5.36 to 5.8 :*Improved cooling by increasing the numbers of cooling fins at the cylinder head and the cylinder body :*Increasing the heat dispersing area of the pistons :*Improved crankcase and oil cooling :*Improved cylinder charging :*Modified valve timing Applications *Albatros L 100 *Albatros Al 101 * Arado L II (As 8A) * Arado L IIa (As 8R) * Baumgärtl Heliofly III *BFW M.23 * BFW M.27 * BFW M.29 * BFW M.35 * Blohm & Voss Ha 136 *Comte AC-12 Moskito *Darmstadt D-22 * DFS 40 *Focke-Wulf Fw 44 *Heinkel He 64 *Heinkel He 72 * Klemm L 25E *Kl ...
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List Of Aircraft Engines
This is an alphabetical list of aircraft engines by manufacturer. 0–9 2si *2si 215 *2si 230 * 2si 430 * 2si 460 *2si 500 * 2si 540 * 2si 690 3W ''Source: RMV'' *3W 106iB2 *3W-110 *3W-112 *3W-170 *3W-210 *3W-220 A Abadal (Francisco Serramalera Abadal) *Abadal Y-12 350/400 hp ABC ''Source: Lumsden.'' * ABC 8 hp * ABC 30hp V-4 * ABC 45hp V-6 * ABC 60hp V-8 * ABC 85hp V-6 * ABC 100hp V-8 * ABC 115 hp * ABC 170hp V-12 * ABC 225hp V-16 *ABC Dragonfly *ABC Gadfly *ABC Gnat *ABC Hornet * ABC Mosquito *ABC Scorpion *ABC Wasp *ABC type 10 APU *ABC type 11 APU ABECO ''Source: RMV'' *ABECO GEM Aberg ''Source: RMV'' *Type Sklenar ABLE ''Source: RMV'', Able Experimental Aircraft Engine Co. (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US)) *ABLE 2275 *ABLE 2500 *ABLE VW x 2 Geared Drive Accurate Automation Corp *Accurate Automation AT-1500 *Accurate Automation AT-1700 Ace (Ace American Engr Corp, Horace Keane Aeroplane Co, North Beac ...
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