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41 авиадвигатель
Большой англо-русский и русско-английский словарь > авиадвигатель
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42 Séguin, Louis
[br]b. 1869d. 1918[br]French co-designer, with his brother Laurent Séguin (b. 1883 Rhône, France; d. 1944), of the extremely successful Gnome rotary engines.[br]Most early aero-engines were adaptations of automobile engines, but Louis Séguin and his brother Laurent set out to produce a genuine aero-engine. They decided to build a "rotary" engine in which the crankshaft remained stationary and the cylinders rotated: the propeller was attached to the cylinders. The idea was not new, for rotary engines had been proposed by engineers from James Watt to Samuel P. Langley, rival of the Wright brothers. (An engine with stationary cylinders and a rotating crankshaftplus-propeller is classed as a "radial".) Louis Séguin formed the Société des Moteurs Gnome in 1906 to build stationary industrial engines. Laurent joined him to develop a lightweight engine specifically for aeronautical use. They built a fivecylinder air-cooled radial engine in 1908 and then a prototype seven-cylinder rotary engine. Later in the year the Gnome Oméga rotary, developing 50 hp (37 kW), was produced. This was test-flown in a Voisin biplane during June 1909. The Gnome was much lighter than its conventional rivals and surprisingly reliable in view of the technical problems of supplying rotating cylinders with the petrol-air mixture and a spark to ignite it. It was an instant success.Gnomes were mass-produced for use during the First World War. Both sides built and flew rotary engines, which were improved over the years until, by 1917, their size had grown to such an extent that a further increase was not practicable. The gyroscopic effects of a large rotating engine became a serious handicap to manoeuvrability, and the technical problems inherent in a rotary engine were accentuated.[br]Bibliography1912, L'Aérophile 20(4) (Louis Séguin's description of the Gnome).Further ReadingC.F.Taylor, 1971, "Aircraft Propulsion", Smithsonian Annals of Flight 1(4) (an account of the evolution of aircraft piston engines).A.Nahum, 1987, the Rotary Aero-Engine, London.JDS -
43 Langley, Samuel Pierpont
SUBJECT AREA: Aerospace[br]b. 22 August 1834 Roxbury, Massachusetts, USAd. 27 February 1906 Aiken, South Carolina, USA[br]American scientist who built an unsuccessful aeroplane in 1903, just before the success of the Wright brothers.[br]Professor Langley was a distinguished mathematician and astronomer who became Secretary of the Smithsonian Institution (US National Museum) in 1887. He was also interested in aviation and embarked on a programme of experiments with a whirling arm to test wings and with a series of free-flying models. In 1896 one of his steam-powered models made a flight of 4,199 ft (1,280 m): this led to a grant from the Government to subsidize the construction of a manned aeroplane. Langley commissioned Stephen M. Balzer, an automobile engine designer, to build a lightweight aero-engine and appointed his assistant, Charles M.Manly, to oversee the project. After many variations, including rotary and radical designs, two versions of the Balzer-Manly engine were produced, one quarter size and one full size. In August 1903 the small engine powered a model which thus became the first petrol-engined aeroplane to fly. Langley designed his full-size aeroplane (which he called an Aerodrome) with tandem wings and a cruciform tail unit. The Balzer-Manly engine drove two pusher propellers. Manly was to be the pilot as Langley was now almost 70 years old. Most early aviators tested their machines by making tentative hops, but Langley decided to launch his Aerodrome by catapult from the roof of a houseboat on the Potomac river. Two attempts were made and on both occasions the Aerodrome crashed into the river: catapult problems and perhaps a structural weakness were to blame. The second crash occurred on 8 December 1903 and it is ironic that the Wright brothers, with limited funds and no Government support, successfully achieved a manned flight just nine days later. Langley was heartbroken. After his death there followed a strange affair in 1914 when Glenn Curtiss took Langley's Aerodrome, modified it, and tried to prove that but for the faulty catapult it would have flown before the Wrights' Flyer. A brief flight was made with floats instead of the catapult, and it flew rather better after more extensive modifications and a new engine.[br]Bibliography1897, Langley Memoir on Mechanical Flight, Part 1, Washington, DC: Smithsonian Institution; 1911, Part 2.Further ReadingJ.Gordon Vaeth, 1966, Langley: Man of Science and Flight, New York (biography).Charles H. Gibbs-Smith, 1985, Aviation, London (includes an analysis of Langley's work).Tom D.Crouch, 1981, A Dream of Wings, New York.Robert B.Meyer Jr (ed.), 1971, Langley's Aero Engine of 1903, Washington, DC: Smithsonian Annals of Flight, No. 6 (provides details about the engine).JDSBiographical history of technology > Langley, Samuel Pierpont
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44 Ellehammer, Jacob Christian Hansen
SUBJECT AREA: Aerospace[br]b. 14 June 1871 South Zealand, Denmarkd. b. 20 May 1946 Copenhagen, Denmark[br]Danish inventor who took out some four hundred patents for his inventions, including aircraft.[br]Flying kites as a boy aroused Ellehammer's interest in aeronautics, and he developed a kite that could lift him off the ground. After completing an apprenticeship, he started his own manufacturing business, whose products included motor cycles. He experimented with model aircraft as a sideline and used his mo tor-cycle experience to build an aero engine during 1903–4. It had three cylinders radiating from the crankshaft, making it, in all probability, the world's first air-cooled radial engine. Ellehammer built his first full-size aircraft in 1905 and tested it in January 1906. It ran round a circular track, was tethered to a central mast and was unmanned. A more powerful engine was needed, and by September Ellehammer had improved his engine so that it was capable of lifting him for a tethered flight. In 1907 Ellehammer produced a new five-cylinder radial engine and installed it in the first manned tri-plane, which made a number of free-flight hops. Various wing designs were tested and during 1908–9 Ellehammer developed yet another radial engine, which had six cylinders arranged in two rows of three. Ellehammer's engines had a very good power-to-weight ratio, but his aircraft designs lacked an understanding of control; consequently, he never progressed beyond short hops in a straight line. In 1912 he built a helicopter with contra-rotating rotors that was a limited success. Ellehammer turned his attention to his other interests, but if he had concentrated on his excellent engines he might have become a major aero engine manufacturer.[br]Bibliography1931, Jeg fløj [I Flew], Copenhagen (Ellehammer's memoirs).Further ReadingC.H.Gibbs-Smith, 1965, The Invention of the Aeroplane 1799–1909, London (contains concise information on Ellehammer's aircraft and their performance).J.H.Parkin, 1964, Bell and Baldwin, Toronto (provides more detailed descriptions).JDSBiographical history of technology > Ellehammer, Jacob Christian Hansen
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45 Ricardo, Sir Harry Ralph
[br]b. 26 January 1885 London, Englandd. 18 May 1974 Graffham, Sussex, England[br]English mechanical engineer; researcher, designer and developer of internal combustion engines.[br]Harry Ricardo was the eldest child and only son of Halsey Ricardo (architect) and Catherine Rendel (daughter of Alexander Rendel, senior partner in the firm of consulting civil engineers that later became Rendel, Palmer and Tritton). He was educated at Rugby School and at Cambridge. While still at school, he designed and made a steam engine to drive his bicycle, and by the time he went up to Cambridge in 1903 he was a skilled craftsman. At Cambridge, he made a motor cycle powered by a petrol engine of his own design, and with this he won a fuel-consumption competition by covering almost 40 miles (64 km) on a quart (1.14 1) of petrol. This brought him to the attention of Professor Bertram Hopkinson, who invited him to help with research on turbulence and pre-ignition in internal combustion engines. After leaving Cambridge in 1907, he joined his grandfather's firm and became head of the design department for mechanical equipment used in civil engineering. In 1916 he was asked to help with the problem of loading tanks on to railway trucks. He was then given the task of designing and organizing the manufacture of engines for tanks, and the success of this enterprise encouraged him to set up his own establishment at Shoreham, devoted to research on, and design and development of, internal combustion engines.Leading on from the work with Hopkinson were his discoveries on the suppression of detonation in spark-ignition engines. He noted that the current paraffinic fuels were more prone to detonation than the aromatics, which were being discarded as they did not comply with the existing specifications because of their high specific gravity. He introduced the concepts of "highest useful compression ratio" (HUCR) and "toluene number" for fuel samples burned in a special variable compression-ratio engine. The toluene number was the proportion of toluene in heptane that gave the same HUCR as the fuel sample. Later, toluene was superseded by iso-octane to give the now familiar octane rating. He went on to improve the combustion in side-valve engines by increasing turbulence, shortening the flame path and minimizing the clearance between piston and head by concentrating the combustion space over the valves. By these means, the compression ratio could be increased to that used by overhead-valve engines before detonation intervened. The very hot poppet valve restricted the advancement of all internal combustion engines, so he turned his attention to eliminating it by use of the single sleeve-valve, this being developed with support from the Air Ministry. By the end of the Second World War some 130,000 such aero-engines had been built by Bristol, Napier and Rolls-Royce before the piston aero-engine was superseded by the gas turbine of Whittle. He even contributed to the success of the latter by developing a fuel control system for it.Concurrent with this was work on the diesel engine. He designed and developed the engine that halved the fuel consumption of London buses. He invented and perfected the "Comet" series of combustion chambers for diesel engines, and the Company was consulted by the vast majority of international internal combustion engine manufacturers. He published and lectured widely and fully deserved his many honours; he was elected FRS in 1929, was President of the Institution of Mechanical Engineers in 1944–5 and was knighted in 1948. This shy and modest, though very determined man was highly regarded by all who came into contact with him. It was said that research into internal combustion engines, his family and boats constituted all that he would wish from life.[br]Principal Honours and DistinctionsKnighted 1948. FRS 1929. President, Institution of Mechanical Engineers 1944–5.Bibliography1968, Memo \& Machines. The Pattern of My Life, London: Constable.Further ReadingSir William Hawthorne, 1976, "Harry Ralph Ricardo", Biographical Memoirs of Fellows of the Royal Society 22.JBBiographical history of technology > Ricardo, Sir Harry Ralph
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46 Wankel, Felix
[br]b. 13 August 1902 Lahr, Black Forest, Germanyd. 9 October 1988 Lindau, Bavaria, Germany[br]German internal combustion engineer, inventor of the Wankel rotary engine.[br]Wankel was first employed at the German Aeronautical Research Establishment, where he worked on rotary valves and valve sealing techniques in the early 1930s and during the Second World War. In 1951 he joined NSU Motorenwerk AG, a motor manufacturer based at Neckarsulm, near Stuttgart, and began work on his rotary engine; the idea for this had first occurred to Wankel as early as 1929. He had completed his first design by 1954, and in 1957 his first prototype was tested. The Wankel engine has a three-pointed rotor, like a prism of an equilateral triangle but with the sides bowed outwards. This rotor is geared to a driveshaft and rotates within a closely fitting and slightly oval-shaped chamber so that, on each revolution, the power stroke is applied to each of the three faces of the rotor as they pass a single spark plug. Two or more rotors may be mounted coaxially, their power strokes being timed sequentially. The engine has only two moving parts, the rotor and the output shaft, making it about a quarter less in weight compared with a conventional piston engine; however, its fuel consumption is high and its exhaust emissions are relatively highly pollutant. The average Wankel engine speed is 5,500 rpm. The first production car to use a Wankel engine was the NSU Ro80, though this was preceded by the experimental NSU Spyder prototype, an open two-seater. The Japanese company Mazda is the only other automobile manufacturer to have fitted a Wankel engine to a production car, although licences were taken by Alfa Romeo, Peugeot- Citroën, Daimler-Benz, Rolls-Royce, Toyota, Volkswagen-Audi (the company that bought NSU in the mid-1970s) and many others; Daimler-Benz even produced a Mercedes C-111 prototype with a three-rotor Wankel engine. The American aircraft manufacturer Curtiss-Wright carried out research for a Wankel aero-engine which never went into production, but the Austrian company Rotax produced a motorcycle version of the Wankel engine which was fitted by the British motorcycle manufacturer Norton to a number of its models.While Wankel became director of his own research establishment at Lindau, on Lake Constance in southern Germany, Mazda continued to improve the rotary engine and by the time of Wankel's death the Mazda RX-7 coupé had become a successful, if not high-selling, Wankel -engined sports car.[br]Further ReadingN.Faith, 1975, Wankel: The Curious Story Behind the Revolutionary Rotary Engine, New York: Stein \& Day.IMcN -
47 Griffith, Alan Arnold
[br]b. 13 June 1893 London, Englandd. 13 October 1963 Farnborough, England[br]English research engineer responsible for many original ideas, including jet-lift aircraft.[br]Griffith was very much a "boffin", for he was a quiet, thoughtful man who shunned public appearances, yet he produced many revolutionary ideas. During the First World War he worked at the Royal Aircraft Factory, Farnborough, where he carried out research into structural analysis. Because of his use of soap films in solving torsion problems, he was nicknamed "Soap-bubble".During the 1920s Griffith carried out research into gas-turbine design at the Royal Aircraft Establishment (RAE; as the Royal Aircraft Factory had become). In 1929 he made proposals for a gas turbine driving a propeller (a turboprop), but the idea was shelved. In the 1930s he was head of the Engine Department of the RAE and developed multi-stage axial compressors, which were later used in jet engines. This work attracted the attention of E.W. (later Lord) Hives of Rolls-Royce who persuaded Griffith to join Rolls-Royce in 1939. His first major project was a "contra-flow" jet engine, which was a good idea but a practical failure. However, Griffith's axial-flow compressor experience played an important part in the success of Rolls-Royce jet engines from the Avon onwards. He also proposed the bypass principle used for the Conway.Griffith experimented with suction to control the boundary layer on wings, but his main interest in the 1950s centred on vertical-take-off and -landing aircraft. He developed the remarkable "flying bedstead", which consisted of a framework (the bedstead) in which two jet engines were mounted with their jets pointing downwards, thus lifting the machine vertically. It first flew in 1954 and provided much valuable data. The Short SC1 aircraft followed, with four small jets providing lift for vertical take-off and one conventional jet to provide forward propulsion. This flew successfully in the late 1950s and early 1960s. Griffith proposed an airliner with lifting engines, but the weight of the lifting engines when not in use would have been a serious handicap. He retired in 1960.[br]Principal Honours and DistinctionsCBE 1948. FRS 1941. Royal Aeronautical Society Silver Medal 1955; Blériot Medal 1962.BibliographyGriffith produced many technical papers in his early days; for example: 1926, Aerodynamic Theory of Turbine Design, Farnborough.Further ReadingD.Eyre, 1966, "Dr A.A.Griffith, CBE, FRS", Journal of the Royal Aeronautical Society (June) (a detailed obituary).F.W.Armstrong, 1976, "The aero engine and its progress: fifty years after Griffith", Aeronautical Journal (December).O.Stewart, 1966, Aviation: The Creative Ideas, London (provides brief descriptions of Griffith's many projects).JDS -
48 Sopwith, Sir Thomas (Tommy) Octave Murdoch
SUBJECT AREA: Aerospace[br]b. 18 January 1888 London, Englandd. 27 January 1989 Stockbridge, Hampshire, England[br]English aeronautical engineer and industrialist.[br]Son of a successful mining engineer, Sopwith did not shine at school and, having been turned down by the Royal Navy as a result, attended an engineering college. His first interest was motor cars and, while still in his teens, he set up a business in London with a friend in order to sell them; he also took part in races and rallies.Sopwith's interest in aviation came initially through ballooning, and in 1906 he purchased his own balloon. Four years later, inspired by the recent flights across the Channel to France and after a joy-ride at Brooklands, he bought an Avis monoplane, followed by a larger biplane, and taught himself to fly. He was awarded the Royal Aero Society's Aviator Certificate No. 31 on 21 November 1910, and he quickly distinguished himself in flying competitions on both sides of the Atlantic and started his own flying school. In his races he was ably supported by his friend Fred Sigrist, a former motor engineer. Among the people Sopwith taught to fly were an Australian, Harry Hawker, and Major Hugh Trenchard, who later became the "father" of the RAF.In 1912, depressed by the poor quality of the aircraft on trial for the British Army, Sopwith, in conjunction with Hawker and Sigrist, bought a skating rink in Kingston-upon-Thames and, assisted by Fred Sigrist, started to design and build his first aircraft, the Sopwith Hybrid. He sold this to the Royal Navy in 1913, and the following year his aviation manufacturing company became the Sopwith Aviation Company Ltd. That year a seaplane version of his Sopwith Tabloid won the Schneider Trophy in the second running of this speed competition. During 1914–18, Sopwith concentrated on producing fighters (or "scouts" as they were then called), with the Pup, the Camel, the 1½ Strutter, the Snipe and the Sopwith Triplane proving among the best in the war. He also pioneered several ideas to make flying easier for the pilot, and in 1915 he patented his adjustable tailplane and his 1 ½ Strutter was the first aircraft to be fitted with air brakes. During the four years of the First World War, Sopwith Aviation designed thirty-two different aircraft types and produced over 16,000 aircraft.The end of the First World War brought recession to the aircraft industry and in 1920 Sopwith, like many others, put his company into receivership; none the less, he immediately launched a new, smaller company with Hawker, Sigrist and V.W.Eyre, which they called the H.G. Hawker Engineering Company Ltd to avoid any confusion with the former company. He began by producing cars and motor cycles under licence, but was determined to resume aircraft production. He suffered an early blow with the death of Hawker in an air crash in 1921, but soon began supplying aircraft to the Royal Air Force again. In this he was much helped by taking on a new designer, Sydney Camm, in 1923, and during the next decade they produced a number of military aircraft types, of which the Hart light bomber and the Fury fighter, the first to exceed 200 mph (322 km/h), were the best known. In the mid-1930s Sopwith began to build a large aviation empire, acquiring first the Gloster Aircraft Company and then, in quick succession, Armstrong-Whitworth, Armstrong-Siddeley Motors Ltd and its aero-engine counterpart, and A.V.Roe, which produced Avro aircraft. Under the umbrella of the Hawker Siddeley Aircraft Company (set up in 1935) these companies produced a series of outstanding aircraft, ranging from the Hawker Hurricane, through the Avro Lancaster to the Gloster Meteor, Britain's first in-service jet aircraft, and the Hawker Typhoon, Tempest and Hunter. When Sopwith retired as Chairman of the Hawker Siddeley Group in 1963 at the age of 75, a prototype jump-jet (the P-1127) was being tested, later to become the Harrier, a for cry from the fragile biplanes of 1910.Sopwith also had a passion for yachting and came close to wresting the America's Cup from the USA in 1934 when sailing his yacht Endeavour, which incorporated a number of features years ahead of their time; his greatest regret was that he failed in his attempts to win this famous yachting trophy for Britain. After his retirement as Chairman of the Hawker Siddeley Group, he remained on the Board until 1978. The British aviation industry had been nationalized in April 1977, and Hawker Siddeley's aircraft interests merged with the British Aircraft Corporation to become British Aerospace (BAe). Nevertheless, by then the Group had built up a wide range of companies in the field of mechanical and electrical engineering, and its board conferred on Sopwith the title Founder and Life President.[br]Principal Honours and DistinctionsKnighted 1953. CBE 1918.Bibliography1961, "My first ten years in aviation", Journal of the Royal Aeronautical Society (April) (a very informative and amusing paper).Further ReadingA.Bramson, 1990, Pure Luck: The Authorized Biography of Sir Thomas Sopwith, 1888– 1989, Wellingborough: Patrick Stephens.B.Robertson, 1970, Sopwith. The Man and His Aircraft, London (a detailed publication giving plans of all the Sopwith aircraft).CM / JDSBiographical history of technology > Sopwith, Sir Thomas (Tommy) Octave Murdoch
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49 Junkers, Hugo
SUBJECT AREA: Aerospace[br]b. 3 February 1859 Rheydt, Germanyd. 3 February 1935 Munich, Germany[br]German aircraft designer, pioneer of all-metal aircraft, including the world's first real airliner.[br]Hugo Junkers trained as an engineer and in 1895 founded the Junkers Company, which manufactured metal products including gas-powered hot-water heaters. He was also Professor of Thermodynamics at the high school in Aachen. The visits to Europe by the Wright brothers in 1908 and 1909 aroused his interest in flight, and in 1910 he was granted a patent for a flying wing, i.e. no fuselage and a thick wing which did not require external bracing wires. Using his sheet-metal experience he built the more conventional Junkers J 1 entirely of iron and steel. It made its first flight in December 1915 but was rather heavy and slow, so Junkers turned to the newly available aluminium alloys and built the J 4 bi-plane, which entered service in 1917. To stiffen the thin aluminium-alloy skins, Junkers used corrugations running fore and aft, a feature of his aircraft for the next twenty years. Incidentally, in 1917 the German authorities persuaded Junkers and Fokker to merge, but the Junkers-Fokker Company was short-lived.After the First World War Junkers very rapidly converted to commercial aviation, and in 1919 he produced a single-engined low-wing monoplane capable of carrying four passengers in an enclosed cabin. The robust all-metal F 13 is generally accepted as being the world's first airliner and over three hundred were built and used worldwide: some were still in service eighteen years later. A series of low-wing transport aircraft followed, of which the best known is the Ju 52. The original version had a single engine and first flew in 1930; a three-engined version flew in 1932 and was known as the Ju 52/3m. This was used by many airlines and served with the Luftwaffe throughout the Second World War, with almost five thousand being built.Junkers was always ready to try new ideas, such as a flap set aft of the trailing edge of the wing that became known as the "Junkers flap". In 1923 he founded a company to design and manufacture stationary diesel engines and aircraft petrol engines. Work commenced on a diesel aero-engine: this flew in 1929 and a successful range of engines followed later. Probably the most spectacular of Junkers's designs was his G 38 airliner of 1929. This was the world's largest land-plane at the time, with a wing span of 44 m (144 ft). The wing was so thick that some of the thirty-four passengers could sit in the wing and look out through windows in the leading edge. Two were built and were frequently seen on European routes.[br]Bibliography1923, "Metal aircraft construction", Journal of the Royal Aeronautical Society, London.Further ReadingG.Schmitt, 1988, Hugh Junkers and His Aircraft, Berlin.1990, Jane's Fighting Aircraft of World War I, London: Jane's (provides details of Junkers's aircraft).J.Stroud, 1966, European Transport Aircraft since 1910, London.P. St J.Turner and H.J.Nowarra, 1971, Junkers: An Aircraft Album, London.JDS -
50 BAEMMA
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51 junk ring
1) Морской термин: прокладочное кольцо2) Техника: повязка при переломе, шина для фиксации перелома, газонепроницаемое уплотнительное кольцо (A ring for maintaining a gas-tight seal between the cylinder head and the bore of a sleeve-valve on an aero engine.)3) Автомобильный термин: крышка поршня, уплотнительное кольцо -
52 technician
( технический) специалист, техникairborne radio and flight check panel operator technician — техник-оператор бортового радиооборудования и контрольных приборов
aircraft countermeasures maintenance technician — техник по обслуживанию (бортовой электронной аппаратуры создания помех
aircraft electronic navigation equipment maintenance technician — техник по обслуживанию бортового электронного навигационного оборудования
army aviation maintenance technician — техник по обслуживанию и ремонту авиационной техники армейской авиации
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53 Reason, Richard Edmund
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 21 December 1903 Exeter, Devon, Englandd. 20 March 1987 Great Bowden, Leicestershire, England[br]English metrologist who developed instruments for measuring machined-surface roughness.[br]Richard Edmund Reason was educated at Tonbridge School and the Royal College of Science (Imperial College), where he studied under Professor A.F.C.Pollard, Professor of Technical Optics. After graduating in 1925 he joined Taylor, Taylor and Hobson Ltd, Leicester, manufacturers of optical, electrical and scientific instruments, and remained with that firm throughout his career. One of his first contributions was in the development, with E.F.Fincham, of the Fincham Coincidence Optometer. At this time the firm, under William Taylor, was mainly concerned with optical instruments and lens manufacture, but in the 1930s Reason was also engaged in developing means for measuring the roughness of machined surfaces. The need for establishing standards and methods of measurement of surface finish was called for when the subcontracting of aero-engine components became necessary during the Second World War. This led to the development by Reason of an instrument in which a stylus was moved across the surface and the profile recorded electronically. This was called the Talysurf and was first produced in 1941. Further development followed, and from 1947 Reason tackled the problem of measuring roundness, producing the first Talyrond machine in 1949. The technology developed for these instruments was used in the production of others such as the Talymin Comparator and the Talyvel electronic level. Reason was also associated with the development of optical projection systems to measure the profile of parts such as gear teeth, screw threads and turbine blades. He retired in 1968 but continued as a consultant to the company. He served for many years on committees of the British Standards Institution on surface metrology and was a representative of Britain at the International Standards Organization.[br]Principal Honours and DistinctionsOBE 1967. FRS 1971. Honorary DSc University of Birmingham 1969. Honorary DSc Leicester University 1971.Further ReadingD.J.Whitehouse, 1990, Biographical Memoirs of Fellows of the Royal Society 36, London, pp. 437–62 (an illustrated obituary notice listing Reason's eighty-nine British patents, published between 1930 and 1972, and his twenty-one publications, dating from 1937 to 1966).K.J.Hume, 1980, A History of Engineering Metrology, London, 113–21 (contains a shorter account of Reason's work).RTS -
54 Sikorsky, Igor Ivanovich
SUBJECT AREA: Aerospace[br]b. 25 May 1889 Kiev, Ukrained. 26 October 1972 Easton, Connecticut, USA[br]Russian/American pioneer of large aeroplanes, flying boats, and helicopters.[br]Sikorsky trained as an engineer but developed an interest in aviation at the age of 19 when he was allowed to spend several months in Paris to meet French aviators. He bought an Anzani aero-engine and took it back to Russia, where he designed and built a helicopter. In his own words, "It had one minor technical problem—it would not fly—but otherwise it was a good helicopter".Sikorsky turned to aeroplanes and built a series of biplanes: by 1911 the 5–5 was capable of flights lasting an hour. Following this success, the Russian-Baltic Railroad Car Company commissioned Sikorsky to build a large aeroplane. On 13 May 1913 Sikorsky took off in the Grand, the world's first four-engined aeroplane. With a wing span of 28 m (92 ft) it was also the world's largest, and was unique in that the crew were in an enclosed cabin with dual controls. The even larger Ilia Mourometz flew the following year and established many records, including the carriage of sixteen people. During the First World War many of these aircraft were built and served as heavy bombers.Following the revolution in Russia during 1917, Sikorsky emigrated first to France and then the United States, where he founded his own company. After building the successful S-38 passenger-carrying amphibian, the Sikorsky Aviation Corporation became part of the United Aircraft Corporation and went on to produce several large flying boats. Of these, the four-engined S-42 was probably the best known, for its service to Hawaii in 1935 and trial flights across the Atlantic in 1937.In the late 1930s Sikorsky once again turned his attention to helicopters, and on 14 September 1939 his VS-300 made its first tentative hop, with Sikorsky at the controls. Many improvements were made and on 6 May 1941 Sikorsky made a record-breaking flight of over 1½ hours. The Sikorsky design of a single main lifting rotor combined with a small tail rotor to balance the torque effect has dominated helicopter design to this day. Sikorsky produced a long series of outstanding helicopter designs which are in service throughout the world.[br]Principal Honours and DistinctionsChevalier de la Légion d'honneur 1960. Presidential Certificate of Merit 1948. Aeronautical Society Silver Medal 1949.Bibliography1971, "Sixty years in flying", Aeronautical Journal (Royal Aeronautical Society) (November) (interesting and amusing).1938, The Story of the Winged S., New York; 1967, rev. edn.Further ReadingD.Cochrane et al., 1990, The Aviation Careers of Igor Sikorsky, Seattle.K.N.Finne, 1988, Igor Sikorsky: The Russian Years, ed. C.J.Bobrow and V.Hardisty, Shrewsbury; orig. pub. in Russian, 1930.F.J.Delear, 1969, Igor Sikorsky: His Three Careers in Aviation, New York.JDSBiographical history of technology > Sikorsky, Igor Ivanovich
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55 specialist
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56 Santos-Dumont, Alberto
SUBJECT AREA: Aerospace[br]b. 20 July 1873 Cabangu, Rocha Dias, Brazild. 23 July 1932 d. Santos, Sâo Paulo, Brazil[br]Brazilian pioneer in airship and aeroplane flights.[br]Alberto Santos-Dumont, the son of a wealthy Brazilian coffee planter, was sent to Paris to study engineering but developed a passion for flying. After several balloon flights he turned his attention to powered airships. His first small airship, powered by a motorcycle engine, flew in 1898. A series of airships followed and his flights over Paris—and his narrow escapes—generated much public interest. A large cash prize had been offered for the first person to fly from Saint-Cloud around the Eiffel Tower and back inside thirty minutes. Santos-Dumont made two attempts in his airship No. 5, but engine failures caused him to crash, once in a tree and once on a hotel roof. Undismayed, he prepared airship No. 6 and on 19 October 1901 he set out and rounded the Tower, only to suffer yet another engine failure. This time he managed to restart the engine and claim the prize. This flight created a sensation in Paris and beyond. Santos-Dumont continued to create news with a series of airship exploits, and by 1906 he had built a total of fourteen airships. In 1904 Santos-Dumont visited the United States and met Octave Chanute, who described to him the achievements of the Wright brothers. On his return to Paris he set about designing an aeroplane which was unlike any other aeroplane of the period. It had box-kite-like wings and tail, and flew tail-first (a canard) powered by an Antoinette engine at the rear. It was built for him by Gabriel Voisin and was known as the "14 bis" because it was air-tested suspended beneath airship No. 14. It made its first free take-off on 13 September 1906, and then a series of short hops, including one of 220 m (720 ft) which won Santos-Dumont an Aero-Club prize and recognition for the first aeroplane flight in Europe; indeed, it was the first officially witnessed aeroplane flight in the world. Santos-Dumont's most successful aeroplane was his No. 20 of 1909, known as the Demoiselle: a tiny machine popular with sporting pilots. About this time, however, Santos-Dumont became ill and had to abandon his aeronautical activities. Although he had not made any great technical breakthroughs, Santos-Dumont had played a major role in arousing public interest in flying.[br]Principal Honours and DistinctionsAéro Club de France Grand Prix de l'Aéronautique 1901. Chevalier de la Légion d'honneur 1904.Bibliography1904, Dans l'air, Paris; 1904, pub. as My Airships (repub. 1973, New York: Dover).Further ReadingPeter Wykeham, 1962, Santos-Dumont, A Study in Obsession, London.F.H.da Costa, c. 1971, Alberto Santos-Dumont, O Pai da Aviaçāo; pub. in English asAlberto Santos Dumont, Father of Aviation, Rio de Janeiro.JDS -
57 speed
скорость; число оборотов; ускорятьat a speed of Mach 3 — при скорости, соответствующей числу М=3
best (cost) cruising speed — наивыгоднейшая [экономическая] крейсерская скорость полёта
clean (configuration) stall speed — скорость срыва [сваливания] при убранных механизации и шасси
engine-out discontinued approach speed — скорость ухода на второй круг с минимальной высоты при одном неработающем двигателе
flap(-down, -extended) speed — скорость полёта с выпущенными [отклонёнными] закрылками
forward с.g. stalling speed — скорость срыва [сваливания] при передней центровке
hold the speed down — уменьшать [гасить] скорость
minimum single-engine control speed — минимальная эволютивная скорость полёта с одним (работающим) двигателем (из двух)
minimum speedln a stall — минимальная скорость срыва [сваливания]
one-engine-inoperative power-on stalling speed — скорость срыва [сваливания] при одном отказавшем двигателе
rearward с.g. stalling speed — скорость срыва [сваливания] при задней центровке
representative cruising air speed — типовая крейсерская воздушная скорость, скорость полёта на типичном крейсерском режиме
speed over the top — скорость в верхней точке (траектории, маневра)
zero rate of climb speed — скорость полёта при нулевой скороподъёмности [вертикальной скорости]
— speed up -
58 configuration
1. конфигурация; схема; компоновка; форма; комбинация2. структура3. вариант <ЛА>10x8 configuration15% unstable configurationactuator configurationaero-balanced configurationaeroelastic configurationaeromedical configurationaft CG configurationair defence configurationair-combat configurationair-to-air configurationaircraft configurationaircraft-like configurationairfoil-spoiler-flap configurationairframe-inlet configurationall-cargo configurationall-economy configurationall-freight configurationall-wing configurationanti-ice configurationapproach-flap configurationarrow-wing configurationas delivered configurationas-built configurationasymmetrical missile configurationback-staggered configurationbaseline configurationbenchmark configurationblade configurationblade/hub configurationblowing configurationbroad-brush configurationbutterfly configurationcabin configurationcanard configurationcanard-tail configurationcanard-wing configurationcanard-wing-body configurationcanardless configurationcargo-loading configurationchine configurationchined configurationcircular configurationclean configurationclose-coupled canard configurationclose-coupled wing-canard configurationclosed-loop configurationcoaxial configurationcockpit configurationconstant gain configurationcontrol configurationcontrol law configurationcontrol surface configurationcontrol system configurationcritical configurationcruise configurationdelta-canard configurationdelta-winged configurationdeparture resistant configurationdeployed configurationdisplay configurationdouble-delta configurationdownstop configurationdual cargo-hook configurationdual-console configurationeconomy class configurationejector-lift and vectored-thrust configurationelectronic reconnaissance configurationempennage configurationenergy-conservative configurationengine configurationevaluation configurationfairing configurationfighter-like configurationfilter configurationfinned configurationflap configurationflapped configurationflaps-up configurationflying boom configurationforebody configurationforebody off configurationforebody removed configurationforward-swept configurationforward-swept-wing configurationfour-blade configurationfour-engine configurationfree-turbine configurationgeometric configurationglide configurationglove-fuselage configurationgo-around configurationheavy store configurationhigh-angle-of-attack configurationhigh-control-effectiveness configurationhigh-altitude configurationhigh-density configurationhigh-fineness-ratio configurationhigh-lift configurationhigh-overshoot configurationhigh-wing configurationhorizontal ellipse configurationhypersonic configurationin-flight configurationin-line configurationinboard-jointed configurationinertially slender configurationinlet configurationinversely derived configurationiron bird configurationjet balanced configurationjoined wing configurationlanding configurationLEX configurationlifting body configurationlighting configurationlow-bypass configurationlow-drag configurationlow-fineness-ratio configurationlow-overshoot configurationlow-signature configurationlow-speed configurationmaneuver configurationmidwing configurationminimum drag configurationmixed-class configurationmultisurface configurationmultibody configurationmultiengine configurationmultiple-jet configurationnormal-shock configurationnose-boom-off configurationnose-boom-on configurationoblique-wing configurationopen-loop configurationordnance configurationover-the-wing configurationpanelized configurationparcel-freighter configurationpartial-freight configurationpassenger configurationpayload configurationpitch control configurationpitch attitude-tracking configurationpitch-only configurationpitch rate command configurationpodded configurationpole-zero configurationpoor RSS configurationpower approach configurationpower-on aircraft configurationpowered configurationpowerplant configurationpre-production configurationproduction configurationpropulsor configurationpusher configurationratchet configurationreal configurationrear-loading configurationrotor plus wing configurationrotor-airframe configurationrotor-fuselage configurationrotor-winglet configurationrotorcraft configurationseating configurationsensor configurationside-by-side configurationsimulation configurationsingle-jet configurationsingle-body configurationsingle-engine configurationsingle-fuselage configurationsingle-pilot configurationsingle-rotor configurationsingle-shaft configurationsized configurationslat configurationsoft in-plane configurationspoiler configurationstable configurationstall-resistant configurationstarting configurationsteady flight configurationstiff in-plane configurationSTOL configurationstore configurationSTOVL configurationstraight-wing configurationstrake off configurationstrake-wing configurationsupersonic cruise configurationsymmetrical missile configurationT-tail configurationtail configurationtail control configurationtail-aft configurationtailed configurationtailed-delta configurationtailless configurationtakeoff configurationtandem configurationtandem-wing configurationtandem-rotor configurationtest configurationthree shaft configurationthree-engine configurationthree-shock configurationthrust-down configurationthrust-up configurationthrust-vectored configurationtilt-rotor configurationtilting engine configurationtip-jointed configurationtractor configurationtrailing-edge configurationTrefftz-plane configurationtunnel-supported configurationturbojet-powered configurationturboprop configurationturboshaft configurationturning configurationtwin-lift helicopter configurationtwo-bladed configurationtwo-cabin configurationtwo-engine configurationtwo-shaft configurationtwo-stage configurationtwo-surface configurationunder-the-wing configurationunslatted configurationunstable configurationunstick configurationup and away configurationupper-surface-blowing configurationupper-surface-blown configurationUSB configurationV/STOL configurationvariable-bypass-ratio configurationvariable-geometry configurationVATOL configurationvectored-engine-over-wing configurationVEO-wing configurationvertical ellipse configurationVTOL configurationwidely spaced pod configurationWild Weasel configurationwing configurationwing mounted configurationwing-body-nacelle configurationwing-body-tail configurationwing-canard configurationwing-fence configurationwing-flap configurationwing-spoiler-flap configurationwing-tail-fuselage configurationwing-store configurationyaw vane configurationzig-zag configuration -
59 Ohain, Hans Joachim Pabst von
SUBJECT AREA: Aerospace[br]b. 14 December 1911 Dessau, Germany[br]German engineer who designed the first jet engine to power an aeroplane successfully.[br]Von Ohain studied engineering at the University of Göttingen, where he carried out research on gas-turbine engines, and centrifugal compressors in particular. In 1935 he patented a design for a jet engine (in Britain, Frank Whittle patented his jet-engine design in 1930). Von Ohain was recruited by the Heinkel company in 1936 to develop an engine for a jet aircraft. Ernst Heinkel was impressed by von Ohain's ideas and gave the project a high priority. The first engine was bench tested in September 1937. A more powerful version was developed and tested in air, suspended beneath a Heinkel dive-bomber, during the spring of 1939. A new airframe was designed to house the revolutionary power plant and designated the Heinkel He 178. A short flight was made on 24 August 1939 and the first recognized flight on 27 August. This important achievement received only a lukewarm response from the German authorities. Von Ohain's turbojet engine had a centrifugal compressor and developed a thrust of 380 kg (837 lb). An improved, more powerful, engine was developed and installed in a new twin-engined fighter design, the He 280. This flew on 2 April 1941 but never progressed beyond the prototype stage. By this time two other German companies, BMW and Junkers, were constructing successful turbojets with axial compressors: luckily for the Allies, Hitler was reluctant to pour his hard-pressed resources into this new breed of jet fighters. After the war, von Ohain emigrated to the United States and worked for the Air Force there.[br]Bibliography1929, "The evolution and future of aeropropulsion system", The Jet Age. 40 Years of Jet Aviation, Washington, DC: National Air \& Space Museum, Smithsonian Institution.Further ReadingVon Ohain's work is described in many books covering the history of aviation, and aero engines in particular, for example: R.Schlaifer and S.D.Heron, 1950, Development of Aircraft Engines and fuels, Boston. G.G.Smith, 1955, Gas Turbines and Jet Propulsion.Grover Heiman, 1963, Jet Pioneers.JDSBiographical history of technology > Ohain, Hans Joachim Pabst von
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60 oil
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