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41 point
точка; пункт; место; ориентир; вершина, острие, конец; деление ( шкалы) ; румб ( компаса) ; показывать, указывать100 foot point — точка на высоте 100 футов (30,5 м)
35-ft height point — точка на высоте 35 футов (10,5 м) над уровнем впп
computed air release point — расчётный пункт сброса (десанта, грузов); расчётная точка сбрасывания бомб
ground pressurization test point — точка наземной проверки герметичности [герметизации]
mean point of impact — центр [средняя точка] попаданий; геометрический центр площади рассеивания (бомб)
near wake critical point — аэрд. критическая точка н ближней области следа
one point per flight — один режим на [за] полет (об испытании)
oxygen (system) charging point — точка зарядки [заправки] кислородной системы
point of thrust termination — точка прекращения работы двигателя, конец активного участка
side load reaction point — точка [узел], воспринимающая боковую нагрузку
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42 Shortt, William Hamilton
SUBJECT AREA: Horology[br]b. 28 September 1881d. 4 February 1971[br]British railway engineer and amateur horologist who designed the first successful free-pendulum clock.[br]Shortt entered the Engineering Department of the London and South Western Railway as an engineering cadet in 1902, remaining with the company and its successors until he retired in 1946. He became interested in precision horology in 1908, when he designed an instrument for recording the speed of trains; this led to a long and fruitful collaboration with Frank HopeJones, the proprietor of the Synchronome Company. This association culminated in the installation of a free-pendulum clock, with an accuracy of the order of one second per year, at Edinburgh Observatory in 1921. The clock's performance was far better than that of existing clocks, such as the Riefler, and a slightly modified version was produced commercially by the Synchronome Company. These clocks provided the time standard at Greenwich and many other observatories and scientific institutions across the world until they were supplanted by the quartz clock.The period of a pendulum is constant if it swings freely with a constant amplitude in a vacuum. However, this ideal state cannot be achieved in a clock because the pendulum must be impulsed to maintain its amplitude and the swings have to be counted to indicate time. The free-pendulum clock is an attempt to approach this ideal as closely as possible. In 1898 R.J. Rudd used a slave clock, synchronized with a free pendulum, to time the impulses delivered to the free pendulum. This clock was not successful, but it provided the inspiration for Shortt's clock, which operates on the same principle. The Shortt clock used a standard Synchronome electric clock as the slave, and its pendulum was kept in step with the free pendulum by means of the "hit and miss" synchronizer that Shortt had patented in 1921. This allowed the pendulum to swing freely (in a vacuum), apart from the fraction of a second in which it received an impulse each half-minute.[br]Principal Honours and DistinctionsMaster of the Clockmakers' Company 1950. British Horological Society Gold Medal 1931. Clockmakers' Company Tompion Medal 1954. Franklin Institute John Price Wetherill Silver Medal.Bibliography1929, "Some experimental mechanisms, mechanical and otherwise, for the maintenance of vibration of a pendulum", Horological Journal 71:224–5.Further ReadingObituary, 1971, Proceedings of the Institution of Civil Engineers 56:396–7.F.Hope-Jones, 1949, Electrical Timekeeping, 2nd edn, London (a detailed but not entirely impartial account of the development of the free-pendulum clock).See also: Marrison, Warren AlvinDVBiographical history of technology > Shortt, William Hamilton
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43 bearing
bearing nпеленгair bearingвоздушная опораair bearing gyroscopeгироскоп с воздушной опорой осейair borne systemбортовая системаaircraft bearingпеленг воздушного суднаantenna bearingантенный пеленгarc of equal bearingsдуга равных азимутовback bearingобратный пеленгbeacon bearingпеленг маякаbearing accuracyточность пеленгованияbearing air sealвоздушное уплотнение опорыbearing areaнесущая поверхностьbearing capacityнесущая способностьbearing circleазимутальный кругbearing deviationизменение пеленгаbearing distance computerнавигационный вычислительbearing extractorсъемник подшипниковbearing frictionтрение в опорахbearing indicatorуказатель азимутаbearing oil jet ringфорсуночное кольцо смазки опорыbearing plateазимутный кругbearing powerнесущая способностьbearing ratioпоказатель плотности грунтаbearing shoulderбоковая полоса безопасности, способная нести нагрузку(от воздушного судна) bearing strengthнесущая способность(покрытия ВПП) bearing support strutстойка несущей опоры(ротора) bearing surfaceопорная поверхностьbear on the accidentиметь отношение к происшествиюcheck bearingконтрольный пеленгcompass bearingкомпасный пеленгconstant bearingпостоянный пеленгcorrected bearingисправленный пеленгcourse bearingкурсовой пеленгcross bearingперекрестный пеленгcurve of equal bearingsлиния равных азимутовenclosed bearingподшипник закрытого типаfront bearingпередняя опораfront bearing housingкорпус передней опорыgreat-circle bearingортодромический пеленгgrid radio bearingусловный пеленг радиостанцииgyro bearingпеленг по гироприборуload bearing capacityнесущая способностьloop bearingрадиопеленгmagnetic bearingмагнитный пеленгmagnetic radio bearingмагнитный пеленг радиостанцииmaintenance-free air bearingизносостойкий воздушный подшипникobserved bearingотмеченный пеленгoutboard bearingобратный пеленгpreset bearingзаданный пеленгpressurize the bearingуплотнять опору подачей давленияradio bearingпеленг радиостанцииradio directional bearingкурс на радиостанциюread out a bearingотсчитывать пеленгrear bearingзадняя опораreciprocal bearingобратный пеленгrelative bearingотносительный пеленгreverse bearingобратный пеленгrhumb-line bearingлоксодромический пеленгrunway true bearingистинный пеленгstation bearingпеленг станцииtake the bearingбрать заданный пеленгtarget bearingпеленг целиtrue bearingистинный пеленгtrue radio bearingистинный пеленг радиостанцииvisual bearingвизуальный пеленгwind relative bearingпеленг с учетом направления ветраwing bearing capacityнесущая способность крыла
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