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Daimler-Benz DB 600
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 an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling 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 Magazine, 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 outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daimler-Benz DB 603
The Daimler-Benz DB 603 was a German aircraft engine used during World War II. It was a liquid-cooled 12-cylinder inverted V12 enlargement of the 33.9 Liter DB 601, which was in itself a development of the DB 600. Production of the DB 603 commenced in May 1942, and with a 44.5 liter (44,500 cc) displacement, was the largest displacement inverted V12 aircraft engine to be used in front line aircraft of the Third Reich during World War II. The DB 603 powered several aircraft, including the Do 217 N&M, Do 335, He 219, Me 410, BV 155 and Ta 152C. Design and development As Germany's largest displacement inverted V12 aviation powerplant in production during the war years, the DB 603 saw wide operational use as the primary engine type for many twin and multi-engined combat aircraft designs — the promising twin-engined Dornier Do 335 ''Pfeil'' prototype heavy fighter, the front-line Messerschmitt Me 410 ''Hornisse'' heavy fighter and Heinkel He 219 ''Uhu'' twin-engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 114
The Heinkel He 114 was a Biplane#Sesquiplane, sesquiplane Aerial reconnaissance, reconnaissance seaplane produced for the ''Kriegsmarine'' in the 1930s for use from warships. It replaced the company's Heinkel He 60, He 60, but it did not remain in service long before being replaced by the Arado Ar 196, Germany, Germany's standard observation seaplane. Design and development While the fuselage and flotation gear of the He 114 were conventional, it used a sesquiplane wing, with a much smaller lower wing. The upper wings were attached to the fuselage with cabane struts, and the lower wings were of reduced Wingspan, span but a similar Chord (aircraft), chord. Operational history The He 114 was never a great success, was not built in large numbers, and served with the ''Luftwaffe'' for only a short time. While the He 60 had handled very well on the water but been sluggish in the air, the He 114's handling while afloat was poor and its performance in the air scarcely better than the ... [...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, with around 100 being completed. Design and development In the early 1930s, the German authorities started placing orders for new aircraft, initially 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 He 45, He 46, and He 50. The company also worked on single-seat fighter designs, which culminated in the He 49 and later with the improved He 51. When the He 51 was tested in combat in the Spanish Civil War, it was shown that speed was far more important than maneuverability. The Luftwaffe took this lesson to heart and star ... [...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 resu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focke-Wulf Fw 187
The Focke-Wulf Fw 187 ''Falke'' ("Falcon") was a German aircraft designed in 1935. It was conceived by Kurt Tank as a twin-engine, high-performance fighter, but the ''Luftwaffe'' saw no role for the design, perceiving it as intermediate between the Messerschmitt Bf 109 and Bf 110. Later prototypes were adapted to two-seats to compete with the Bf 110 in the heavy fighter (''Zerstörer'') 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 bomber), which defensive fighters could not catch. Other air fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focke-Wulf Fw 57
The Focke-Wulf Fw 57 was a prototype Germany, 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 Messerschmitt Bf 110, Bf 110 and Henschel submitted the Henschel Hs 124, 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 Conventional landing gear, tailwheel undercarriage, into the engine nacelles. The pilot and navigator sat in tandem under a long Aircraft canopy, canopy, the aft end of which had a gunner's turret. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dornier Do 17
The Dornier Do 17 is a twin-engined light bomber designed and produced by the German aircraft manufacturer Dornier Flugzeugwerke. Large numbers were operated by the ''Luftwaffe'' throughout the Second World War. The Do 17 was designed during the early 1930s as a '' Schnellbomber'' ("fast bomber") that was intended to use its speed to outrun opposing fighter aircraft. It was a lightly built aircraft, possessing a twin tail, " shoulder wing" and typically powered by a pair of Bramo 323P radial engines. The first prototype made its maiden flight on 23 November 1934; it entered regular service with the ''Luftwaffe'' three years later. Sometimes referred to as the ''Fliegender Bleistift'' ("flying pencil") or the ''Eversharp'', the Do 17 was a relatively popular aircraft among its crews due to its handling, especially at low altitude, which made the type harder to hit than other German bombers of the era. During 1937, the Do 17 made its combat debut during the Spanish Civil War, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arado Ar 68
The Arado Ar 68 was a single-seat biplane fighter designed and produced by the German aircraft manufacturer Arado Flugzeugwerke. It was among the first fighters produced when Germany abandoned the restrictions of the Treaty of Versailles and began rearming. The Ar 68 was a part of Arado's continuing fighter development programme, being designed during the early 1930s as a biplane of relatively standard construction. Both the Rolls-Royce Kestrel and BMW VI selected to power the type proved to be inferior in terms of high altitude performance to the newer Junkers Jumo 210, however, due to limited availability of that only, only late production Ar 68s were outfitted with this powerplant. In addition to its twin 7.92 mm (0.312 in) MG 17 machine guns, some aircraft were provisioned with a compact bomb bay. While the Ar 68 possessed favourable handling characteristics, some officials were concerned that the unforgiving nature of high-performance aircraft would make the ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller Speed Reduction Unit
A propeller speed reduction unit is a Transmission (mechanics), 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 Engine displacement, displacement internal combustion engines to turn Propeller (aircraft), 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 Gear#Spur, spur gear *Internal spur gear *Farman or Bevel gear, bevel epicyclic gearing, planetary type *Fixed sun gear *Fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revolutions Per Minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines. One revolution per minute is equivalent to hertz. Standards ISO 80000-3:2019 defines a physical quantity called ''rotation'' (or ''number of revolutions''), dimensionless, whose instantaneous rate of change is called ''rotational frequency'' (or ''rate of rotation''), with units of reciprocal seconds (s−1). A related but distinct quantity for describing rotation is ''angular frequency'' (or ''angular speed'', the magnitude of angular velocity), for which the SI unit is the radian per second (rad/s). Although they have the same dimensions (reciprocal time) and base unit (s−1), the hertz (Hz) and radians per second (rad/s) are special names used to express two different but proportional ISQ quantities: frequency and angular frequency, respectively. The conversions between a frequency and an angular frequency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
