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41 Oberth, Hermann Julius
SUBJECT AREA: Aerospace[br]b. 25 June 1894 Nagyszeben, Transylvania (now Sibiu, Romania)d. 29 December 1989 Nuremberg, Germany[br]Austro-Hungarian lecturer who is usually regarded, with Robert Goddard, as one of the "fathers" of modern astronautics.[br]The son of a physician, Oberth originally studied medicine in Munich, but his education was interrupted by the First World War and service in the Austro-Hungarian Army. Wounded, he passed the time by studying astronautics. He apparently simulated weightlessness and worked out the design for a long-range liquid-propelled rocket, but his ideas were rejected by the War Office; after the war he submitted them as a dissertation for a PhD at Heidelberg University, but this was also rejected. Consequently, in 1923, whilst still an unknown mathematics teacher, he published his ideas at his own expense in the book The Rocket into Interplanetary Space. These included a description of how rockets could achieve a sufficient velocity to escape the gravitational field of the earth. As a result he gained international prestige almost overnight and learned of the work of Robert Goddard and Konstantin Tsiolkovsky. After correspondence with the Goddard and Tsiolkovsky, Oberth published a further work in 1929, The Road to Space Travel, in which he acknowledged the priority of Goddard's and Tsiolkovski's calculations relating to space travel; he went on to anticipate by more than thirty years the development of electric and ionic propulsion and to propose the use of giant mirrors to control the weather. For this he was awarded the annual Hirsch Prize of 10,000 francs. From 1925 to 1938 he taught at a college in Mediasch, Transylvania, where he carried out experiments with petroleum and liquid-air rockets. He then obtained a lecturing post at Vienna Technical University, moving two years later to Dresden University and becoming a German citizen. In 1941 he became assistant to the German rocket engineer Werner von Braun at the rocket development centre at Peenemünde, and in 1943 he began work on solid propellants. After the Second World War he spent a year in Switzerland as a consultant, then in 1950 he moved to Italy to develop solid-propellant anti-aircraft rockets for the Italian Navy. Five years later he moved to the USA to carry out advanced rocket research for the US Army at Huntsville, Alabama, and in 1958 he retired to Feucht, near Nuremberg, Germany, where he wrote his autobiography.[br]Principal Honours and DistinctionsFrench Astronautical Society REP-Hirsch Prize 1929. German Society for Space Research Medal 1950. Diesel German Inventors Medal 1954. American Astronautical Society Award 1955. German Federal Republic Award 1961. Institute of Aviation and Astronautics Medal 1969.Bibliography1923, Die Rakete zu den Planetenraumen; repub. 1934 as The Rocket into Interplanetary Space (autobiography).1929, Wege zur Raumschiffahrt [Road to Space Travel].1959, Stoff und Leben [Material and Life].Further ReadingR.Spangenburg and D.Moser, 1990, Space People from A to Z, New York: Facts on File. H.Wulforst, 1991, The Rocketmakers: The Dreamers who made Spaceflight a Reality, New York: Crown Publishers.KF / IMcN -
42 характеристика
характеристика сущperformanceакустическая характеристикаacoustic propertyакустическая характеристика двигателяengine acoustic performanceантидетонационная характеристикаantiknock ratingаэродинамическая характеристика1. aerodynamic performance2. aerodynamic characteristic 3. aerodynamic property аэродинамические характеристикиaerodynamic behaviorаэроупругая характеристикаaeroelastic characteristicбалансировочная характеристикаtrim characteristicвзлетная характеристика1. takeoff ability2. takeoff performance взлетно-посадочные характеристикиtake-off and landing characteristicsвибрационная характеристикаvibration characteristicвлиять на летные характеристикиeffect on flight characteristicsвысотная характеристикаaltitude performanceвысотно-скоростная характеристикаaltitude-airspeed performanceвысотные характеристики двигателяengine altitude performancesдиапазон полетных характеристикflight-perfomance rangeдренажные характеристикиdrainage characteristicsдроссельная характеристика1. throttle performance2. throttle characteristic 3. thrust curve задавать характеристикиschedule the performancesинформация о летно-технических характеристикахperformance informationкоординаты характеристикиdata on the performanceлетная характеристика1. flight performance2. flying property летно-технические характеристики1. performance codes2. aircraft performance characteristics летно-технические характеристики воздушного суднаaircraft performancesлетные характеристикиflight characteristicsметод проверки характеристикperfomance check methodнавигационная характеристикаnavigation performanceобобщенные характеристики по шумуgeneralized noise characteristicsограничение характеристикperfomance limitationосновные характеристикиbasic characteristicsотрицательно влиять на характеристикиadversely affect performancesоценка летных характеристикperformance evaluationпадающая характеристикаfalling responseподвергать сомнению соответствие характеристик нормам летной годностиreflect on airworthinessполет для проверки летных характеристикperformance flightпологая характеристикаflat responseпомпажная характеристикаsurge characteristicпосадочная характеристикаlanding performanceпосадочные характеристикиlanding characteristicsПостоянный комитет по летно-техническим характеристикамStanding Committee of Performanceпротивоштопорные характеристикиspin-recovery characteristicsрабочая характеристикаoperating characteristicрасчетная характеристикаdesign characteristicскоростная характеристика1. thrust versus speed curve2. speed ability снижение характеристикperformance lossснимать характеристики1. take characteristics2. check performances стендовая характеристикаinstallation featuresтехнические характеристики зональной навигацииarea navigation capabilityтормозная характеристика воздушного судна1. aircraft braking performance2. aircraft stopping performance требования к эксплуатационным характеристикамoperating performance requirementsтяговая характеристикаthrust characteristicтяговые характеристикиpropulsion performance characteristicsусталостная характеристикаfatigue propertyустанавливать характеристикиestablish the characteristicsустановленные характеристикиspecified characteristicsуточнение летно-технических характеристикperfomance correctionухудшение характеристикdeterioration in performanceхарактеристика в зоне ожиданияholding performanceхарактеристика ВППrunway performanceхарактеристика выдерживания высотыheight-keeping performanceхарактеристика затуханияdecay characteristicхарактеристика излучения звукаsound emission characteristicхарактеристика набора высоты при полете по маршрутуen-route climb performanceхарактеристика планированияgliding performanceхарактеристика по наддувуmanifold pressure characteristicхарактеристика поперечной устойчивостиlateral characteristicхарактеристика процесса горенияcombustion characteristicхарактеристика прочности материалаmaterial strength propertyхарактеристика путевой устойчивостиdirectional stability characteristicхарактеристика расходаflow characteristicхарактеристика расхода воздухаair flow characteristicхарактеристика рентабельностиbreak-even pointхарактеристика сваливанияstall characteristicхарактеристика спектраspectral characteristicхарактеристика сцепления поверхности ВППrunway friction characteristicхарактеристика топливаfuel propertyхарактеристика управляемости1. control characteristic2. handling characteristic характеристика устойчивостиstability characteristicхарактеристика холостого ходаno-load characteristicхарактеристика чувствительности к звуковому давлениюpressure response characteristicхарактеристики авторотацииwindmilling performanceхарактеристики двигателяengine performancesхарактеристики короткого летного поляshort-field performancesхарактеристики наведения по линии путиtrack-defining characteristicsхарактеристики на разворотахturn characteristicsхарактеристики нарастанияonset characteristicsхарактеристики по шумуnoise characteristicsхарактеристики приемаacceleration characteristicхарактеристики скороподъемностиclimb performancesхарактеристики уровня безопасностиsafe featuresхарактеристики, установленные техническим заданиемscheduled performancesчастотная характеристикаfrequency responseэксплуатационная характеристикаoperating performance
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