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Ava 4A
The Ava 4A was a low power flat-four (boxer engine) developed for very light aircraft in France in the 1930s. It was used by several prototypes and at least one production series. Design and development Marcel Violet was a French racing driver who designed his own two-cylinder, two-stroke engines. He also designed a two stroke horizontally opposed flat-four, which was built under licence at ''L'agence general moteurs "Ava"'' by Jean Aubry of the ''Société J. Thibault, G Aubry et Cie'', alloy metal specialists, as the Ava 4A. It only produced and was intended to power small, low cost, single seat aircraft, replacing the aging Anzanis and completing with the French Mengin Type B and the older United Kingdom, British Bristol Cherub engines. The Ava 4A was on display at the November 1936 Paris Salon. It powered several prototypes and also the forty-six examples of the series production variant of the Farman Moustique, the F.451. Variants ;Ava 4A-00: , as described. ;Ava 4A-02: ... [...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] |
Dart Kitten
The Dart Kitten was a British-built ultra-light aircraft of the 1930s. Design and development The Dart Kitten was designed by A.R. Weyl in 1936 and built by Dart Aircraft Ltd at Dunstable, Bedfordshire. It is an ultra-light single-seat low-wing aircraft with a fixed tailskid undercarriage. The four examples built were powered by a variety of engines of between 27 h.p. and 40 h.p. Operational history The Dart Kitten I ''G-AERP'' first flew in January 1937 and was sold to a private owner at Tollerton airport near Nottingham. It was stored during the Second World War. It was re-engined with a 40 h.p. J.A.P. J-99 postwar and flew with a private owner at Broxbourne airfield Hertfordshire before crashing there in November 1952. The Dart Kitten II ''G-AEXT'' received its authorisation to fly on 30 April 1937 and had a series of owners before being badly damaged in a crash at Willingale, Essex in November 1964. It was subsequently rebuilt and in 2009 was airworthy with a private o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Aircraft Piston Engines
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combus ... that completes a Thermodynamic power cycle, 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 (automotive), 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 ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankcase
In a piston engine, the crankcase is the housing that surrounds the crankshaft. In most modern engines, the crankcase is integrated into the engine block. Two-stroke engines typically use a crankcase-compression design, resulting in the fuel/air mixture passing through the crankcase before entering the cylinder(s). This design of the engine does not include an oil sump in the crankcase. Four-stroke engines typically have an oil sump at the bottom of the crankcase and the majority of the engine's oil is held within the crankcase. The fuel/air mixture does not pass through the crankcase in a four-stroke engine, however a small amount of exhaust gasses often enter as "blow-by" from the combustion chamber. The crankcase often forms the lower half of the main bearing journals (with the bearing caps forming the other half), although in some engines the crankcase completely surrounds the main bearing journals. An ''open-crank'' engine has no crankcase. This design was used in early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller Bearing
In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, grooved rings called races. The relative motion of the races causes the rolling elements to roll with very little rolling resistance and with little sliding. One of the earliest and best-known rolling-element bearings are sets of logs laid on the ground with a large stone block on top. As the stone is pulled, the logs roll along the ground with little sliding friction. As each log comes out the back, it is moved to the front where the block then rolls on to it. It is possible to imitate such a bearing by placing several pens or pencils on a table and placing an item on top of them. See " bearings" for more on the historical development of bearings. A rolling element rotary bearing uses a shaft in a much larger hole, and cylinders called "rollers" tightly fill the space between t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankshaft
A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods. The crankpins are also called ''rod bearing journals'', and they rotate within the "big end" of the connecting rods. Most modern crankshafts are located in the engine block. They are made from steel or cast iron, using either a forging, casting or machining process. Design The crankshaft located within the engine block, held in place via main bearings which allow the crankshaft to rotate within the block. The up-down motion of each piston is transferred to the crankshaft via connecting rods. A flywheel is often attached to one end of the crankshaft, in order to smoothen the power delivery and reduce vibration. A crankshaft is subjected to enormous stresses, in some cases more than per cylinder. Crankshafts for single-cylin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magneto
A magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. Unlike a dynamo, a magneto does not contain a commutator to produce direct current. It is categorized as a form of alternator, although it is usually considered distinct from most other alternators, which use field coils rather than permanent magnets. Hand-cranked magneto generators were used to provide ringing current in telephone systems. Magnetos were also adapted to produce pulses of high voltage in the ignition systems of some gasoline-powered internal combustion engines to provide power to the spark plugs. Use of such ignition magnetos for ignition is now limited mainly to engines without a low-voltage electrical system, such as lawnmowers and chainsaws, and to aircraft engines, in which keeping the ignition independent of the rest of the electrical system ensures that the engine continues running in the event of alternator or battery failure. For redundancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carburettor
A carburetor (also spelled carburettor) is a device used by an internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the venturi tube in the main metering circuit, however various other components are also used to provide extra fuel or air in specific circumstances. Since the 1990s, carburetors have been largely replaced by fuel injection for cars and trucks, however carburetors are still used by some small engines (e.g. lawnmowers, generators and concrete mixers) and motorcycles. Diesel engines have always used fuel injection instead of carburetors. Etymology The name "carburetor" is derived from the verb ''carburet'', which means "to combine with carbon," or in particular, "to enrich a gas by combining it with carbon or hydrocarbons." Thus a carburetor mixes intake air with hydrocarbon-based fuel, such as petrol or autogas (LPG). The name is spelled "carburetor" in American English a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tipsy S
The Tipsy S.2 was the production version of the Tipsy S, a single seat, low wing sports monoplane designed by Ernest Oscar Tips in Belgium in the mid-1930s. It was produced in both the Belgium and the UK. Background Avions Fairey, the Fairey Aviation Company's Belgian subsidiary was set up in 1930-1 to produce Fairey Fox and Firefly aircraft for the Belgian Air Force. Its manager was Ernest Oscar Tips. Once production of the military aircraft was under way, Tips found time to design and build light aircraft of his own. The first of these types was the single seat Tipsy S and S.2 in 1935. It was built in Belgium by Avions Fairey and under licence in the UK by Aero Engines Ltd of Bristol. The Tipsy S (for Sport), sometimes known as the S.1, was the prototype. It carried the pleasing registration ''OO-TIP''. Design and development The Tipsy S.2 was a wooden framed machine, covered with a mixture of plywood and canvas. The wing was built around an I-section main spar at about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starck AS90 New Look
Starck is a German surname, which means a strong, bold person, from the Middle High German ''starke'', meaning "strong" or "brave".''Dictionary of American Family Names''"Stark Family History" Oxford University Press, 2013. Retrieved on 16 January 2016. The name may refer to: *Colby Starck (born 1974), American musician *Johann August von Starck (1741–1816), German writer *Karl von Starck (1867–1937), German politician *Philippe Starck (born 1949), French designer *Ville-Valtteri Starck (born 1995), Finnish footballer See also *Starck (other) *Stark (surname) Stark and Starke are German and English surnames; in the German language ''stark'' means "strong" or "powerful". Notable people with the surname include: People Stark * Andrew Stark (born 1964), Australian street photographer * Anthony Stark (1961 ... References {{surname German-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SFAN II
The SFAN II was a French motorglider built in the mid-1930s. Specifications See also References {{reflist 1930s French sport aircraft Single-engined tractor aircraft High-wing aircraft Aircraft first flown in 1935 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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