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Daimler-Benz DB 600Aa
The Daimler-Benz DB 600 was a German aircraft engine designed and built before World War II as part of a new generation of German engine technology. It was a liquid-cooled inverted V12 engine, and powered the Messerschmitt Bf 110 and Heinkel He 111 among others. Development Most newer DB engine designs used in WW2 were based on this engine. The RLM made a set of specifications listing the technologies which the new class of German aero-engines required. Among these items was fuel injection systems rather than carburettors. Knowing that this would take some years to implement, the RLM permitted that the manufacturers could first design and produce the basic engine, and later develop it to include the injection system. The DB 600 formed this function (having in turn been developed from the Daimler-Benz F4A and F4B V12s), therefore when the injection system was ready it meant that the DB 600 was replaced by the otherwise similar DB 601, which in addition to direct fuel injection ... [...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] |
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. History The development of the stea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 112
The Heinkel He 112 is a German fighter aircraft designed by Walter and Siegfried Günter. It was one of four aircraft designed to compete for the 1933 fighter contract of the ''Luftwaffe'', in which it came second behind the Messerschmitt Bf 109. Small numbers were used for a short time by the ''Luftwaffe'' and some were built for other countries, around 100 being completed. Design and development In the early 1930s, the German authorities started placing orders for new aircraft, initially Flight training, training and utility aircraft. Heinkel, as one of the most experienced firms in the country, received contracts for a number of two-seat aircraft, including the Heinkel He 45, He 45, Heinkel He 46, He 46 and Heinkel He 50, He 50. The company also worked on single-seat fighter designs, which culminated in the Heinkel He 49, He 49 and later with the improved Heinkel He 51, He 51. When the He 51 was tested in combat in the Spanish Civil War, it was shown that speed was far more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 60
The Heinkel He 60 was a German single-engined biplane reconnaissance seaplane designed to be catapulted from ''Kriegsmarine'' (German navy) warships of the 1930s. Development and design The Heinkel He 60 was designed by Heinkel engineer Reinhold Mewes, the designer of the He 59.Donald 1994, p.97. The resulting design was a single-engined biplane of mixed wood and metal construction with fabric covering. Its single bay wings were of equal-span and had significant stagger.Smith and Kay 1972, p.229. The first prototype flew early in 1933 and proved to be underpowered with its 492 kW (660 hp) BMW VI engine. The second prototype had a more powerful version of the BMW engine, but this only marginally improved its performance and was unreliable, so production aircraft reverted to the original engine.Green 1962, p.71 Of conventional configuration, the He 60 was a sturdy aircraft, designed (as the specification required) to be capable of operating on the open sea. As a resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focke-Wulf Fw 187
The Focke-Wulf Fw 187 ''Falke'' ("Falcon") was a Nazi Germany, German aircraft developed in the late 1930s. It was conceived by Kurt Tank as a twin-engine, high-performance Fighter aircraft, fighter, but the ''Luftwaffe'' saw no role for the design, perceiving it as intermediate between the Messerschmitt Bf 109 and Messerschmitt Bf 110, Bf 110. Later prototypes were adapted to two-seats to compete with the Bf 110 in the ''Zerstörer'' (heavy fighter) role, but only nine aircraft were built in total. Design and development In the early to mid-1930s, developments in airframe design outpaced available aircraft engine power. Consequently, some designs with two engines outperformed aircraft with just one engine. In European air races, the Dornier Do 17 - a military design concealed under the guise of civilian use - proved faster than single-engined fighters. Although the period of twin-engine superiority was brief, it sparked the idea in Nazi Germany of the "''schnellbomber''" (fast bom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focke-Wulf Fw 57
The Focke-Wulf Fw 57 was a prototype German heavy fighter and fighter-bomber. Prototypes were built in 1936 but never entered production. Design and development In 1934, the Reich Air Ministry (RLM) declared a requirement for a ''Kampfzerstörer'' (battle destroyer), a tactical multi-role fighter/bomber concept, and a possible predecessor to the late-1930s German ''Schnellbomber'' concept. Focke-Wulf submitted the Fw 57, Messerschmitt submitted the Bf 110 and Henschel submitted the Hs 124. The Fw 57 was larger than its two competitors; it was heavier and did not handle as well as them. The Fw 57 was a twin-engine all-metal monoplane of conventional configuration, with a single fin and rearwards-retracting maingear members comprising its tailwheel undercarriage, into the engine nacelles. The pilot and navigator sat in tandem under a long canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dornier Do 17
The Dornier Do 17 is a twin-engined light bomber produced by Dornier Flugzeugwerke for the German Luftwaffe during World War II. Designed in the early 1930s as a ''Schnellbomber'' ("fast bomber") intended to be fast enough to outrun opposing aircraft, the lightly built craft had a twin tail and "shoulder wing". Sometimes referred to as the ''Fliegender Bleistift'' ("flying pencil"), it was popular among its crews due to its handling, especially at low altitude, which made the Do 17 harder to hit than other German bombers. The Do 17 made its combat debut in 1937 during the Spanish Civil War, operating in the Condor Legion in various roles. Along with the Heinkel He 111 it was the main bomber type of the German air arm in 1939–1940. The Dornier was used throughout the early war, and saw action in significant numbers in every major campaign theatre as a front line aircraft until the end of 1941, when its effectiveness and usage was curtailed as its bomb load and range were limi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arado Ar 68
The Arado Ar 68 was a German single-seat biplane fighter developed in the mid-1930s. It was among the first fighters produced when Germany abandoned the restrictions of the Treaty of Versailles and began rearming. Design and development Designed to replace the Heinkel He 51, the Ar 68 proved to have admirable handling characteristics on its first flight in early 1934, despite Arado's inability to secure a sufficiently powerful engine for the prototype. Eventually, a Junkers Jumo 210 was installed and the Ar 68 went into production, though not before worries about the unforgiving nature of such a high-performance aircraft almost resulted in the cancellation of the project. The Ar 68 entered service with the ''Luftwaffe'' in 1936 and one of the first units was stationed in East Prussia. Soon, the fighter was sent to fight in the Spanish Civil War, where it was outclassed by the Soviet Polikarpov I-16. Arado responded by upgrading the engine of the Ar 68E, which soon became the ''L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arado Ar 197
The Arado Ar 197 was a German World War II-era biplane, designed for naval operations for the never-completed German aircraft carrier . Only a few prototypes were built; the project was abandoned in favour of the Messerschmitt Bf 109T and Me 155. Design and development The Ar 197 had its origin in the requirement for a fighter capable of operating from the planned (but never completed) German aircraft carriers ''Graf Zeppelin'' and ''Peter Strasser''. The Ar 68H had been the first Arado aircraft to have a fully enclosed cockpit, and was selected as a base design for the Arado Ar 197. The first prototype of the Ar 197, the V1, was based on the Ar 68H and featured a fully enclosed cockpit, Daimler-Benz DB 600A inline engine, and three-blade propeller, but was not fitted for naval operations. The second prototype, the Ar 197 V2, was similar to the V1, but was powered by a BMW 132Dc radial engine, and was fitted with naval equipment, including an arrester hook and catapult spo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller Speed Reduction Unit
A propeller speed reduction unit is a gearbox or a belt and pulley device used to reduce the output revolutions per minute (rpm) from the higher input rpm of the powerplant.Gunston 2006, p. 82. This allows the use of small displacement internal combustion engines to turn aircraft propellers within an efficient speed range. History and operation The Wright brothers recognised the need for propeller reduction gearing in 1903, but it was not generally used on aircraft engines until larger engines were designed in the 1920s. Large engines with high crankshaft speeds and power outputs demanded propeller reduction, pilots noted the increase in performance of similar aircraft fitted with reduction gearing. Types Types of propeller speed reduction units include: *Chain drive *Single reduction or spur gear *Internal spur gear *Farman or bevel planetary type *Fixed sun gear *Fixed internal gear *Belt drive *Epicyclic gearing Design variations The Rolls-Royce Falcon engine of 1915 fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revolutions Per Minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines. Standards ISO 80000-3:2019 defines a unit of rotation as the dimensionless unit equal to 1, which it refers to as a revolution, but does not define the revolution as a unit. It defines a unit of rotational frequency equal to s−1. The superseded standard ISO 80000-3:2006 did however state with reference to the unit name 'one', symbol '1', that "The special name revolution, symbol r, for this unit is widely used in specifications on rotating machines." The International System of Units (SI) does not recognize rpm as a unit, and defines the unit of frequency, Hz, as equal to s−1. :\begin 1~&\text &&=& 60~&\text \\ \frac~&\text &&=& 1~&\text \end A corresponding but distinct quantity for describing rotation is angular velocity, for which the SI unit is the ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilowatt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
