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Gustav Victor Lachmann (3 February 1896 – 30 May 1966) was a German aeronautical engineer who spent most of his professional life working for the British aircraft company Handley Page. He was, with Frederick Handley Page, the co-inventor of the leading edge slot. In 1949, he became a British citizen. He stayed with Handley-Page for the remainder of his career, eventually becoming head of research, until 5 months before his death at Chorleywood, Hertfordshire, in 1966.

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  • Gustav Victor Lachmann (* 3. Februar 1896 in Dresden; † 30. Mai 1966 in , Hertfordshire, Großbritannien) war ein deutscher Aerodynamiker österreichischer Herkunft. Er entwickelte während des Ersten Weltkrieges unabhängig von dem Briten das Prinzip der Vorflügel und gilt mit dieser Erfindung als Pionier der europäischen Luftfahrt. Lachmann diente zuerst bei den Hessischen Leibdragonern und dann im Ersten Weltkrieg im Rang eines Leutnants als Pilot in der Armee. 1917 erlitt er bei einem Absturz schwere Verletzungen. Nach Kriegsende studierte er ab 1918 an der TH Darmstadt Maschinen- und Flugzeugbau. Er wurde 1919 Mitglied des Corps Hassia Darmstadt. 1921 ging er an die Universität Göttingen, um dort sein Studium in den Fächern Mathematik, Mechanik und Aerodynamik bei Ludwig Prandtl fortzusetzen, bei dem er schließlich im Fachgebiet Strömungsmechanik und Grenzschichttheorie 1923 promovierte. Seine schon 1918 angemeldete, bahnbrechende Idee, mit Vorflügeln (Lachmann-Klappen) die Grenzschicht am Tragflügelprofil zu stabilisieren, wurde vom Deutschen Patentamt in ihrer Bedeutung nicht erkannt und abgelehnt. 1921 nutzte der englische Flugzeugfabrikant Fredrick Handley diese Idee und ließ Lachmann im Göttinger Windkanal für ihn forschen. Von 1924 war er als Konstrukteur für die Flugzeugwerke Franz Schneider in Berlin tätig, zwei Jahre später wurde er technischer Berater für die Flugzeugfabrik Ishikawajima in Tokio. Schließlich übersiedelte er 1929 nach Großbritannien, wo er in der Fabrik von Handley Direktor der Forschungsabteilung wurde und für die Entwicklung der Bomber Harrow und Hampden verantwortlich zeichnete. Mit Ausbruch des Zweiten Weltkriegs wurde er interniert, Handley konnte aber durchsetzen, dass Lachmann als consultant engineer weiterhin für seine Firma arbeiten konnte. 1949 wurde er britischer Staatsangehöriger. Für Handley Page blieb er bis fünf Monate vor seinem Tod tätig. (de)
  • Gustav Victor Lachmann (3 February 1896 – 30 May 1966) was a German aeronautical engineer who spent most of his professional life working for the British aircraft company Handley Page. He was, with Frederick Handley Page, the co-inventor of the leading edge slot. Lachmann was born in Dresden, Germany, in 1896, the younger son of Gustav Anton Lachmann, an Austrian industrialist, and his wife, Leopoldine Wilvonseder. He served as a lieutenant in the German Army cavalry during World War I before transferring to the flying corps in 1917 and training as a pilot. During flight training he stalled and crashed, breaking his jaw. While hospitalised, he turned his mind to the cause of his crash. He concluded that a series of small aerofoils contained within a normal wing section would possess improved low-speed characteristics. He rigged up a primitive flow-visualisation rig using a fan and cigarette smoke to confirm his ideas. He attempted to patent the principle, but the application was initially rejected by the German Patent Office on the basis that there was no proof that it would work. Lachman gave up the idea and enrolled at Darmstadt Technical University, for a course in mechanical engineering and aerodynamics. He graduated in June 1921 and took a job with the Opel factory. By chance, he read an account of Frederick Handley Page's public demonstration of leading-edge slots given at Cricklewood on 21 October 1921. This encouraged him to renew his patent application. He borrowed DM 1000 from his mother to pay for wind-tunnel tests, to be undertaken by Ludwig Prandtl at Göttingen University and the patent was retrospectively granted as DE 347884. This gave his patent priority over those of Handley Page, but a meeting between the two men settled the matter to mutual advantage, the patent rights being shared, and Lachmann being hired as a consultant by Handley Page Ltd. In 1923, his doctoral thesis The Slotted Wing and its Importance for Aviation was accepted by Aachen Technical University. He then spent time as a designer at the Schneider aircraft works in Berlin before becoming chief designer at the Albatros aircraft works at Johannisthal in 1925, where he designed the Albatros L 72 and the twin-engined Albatros L 73 eight-passenger transport. In 1926, Lachmann resigned from Albatros to join the Ishikawajima Aircraft Works in Tokyo as a technical adviser. He left Ishikawajima in 1929 to take a job with Handley Page in the United Kingdom as engineer in charge of slot development. In 1932, he was appointed chief designer, designing the H.P 54 Harrow and Hampden aircraft. In 1936, he was appointed to set up a special research department to work on a tailless aircraft design, the Handley Page H.P.75. Lachmann was regarded with suspicion by the British counter-intelligence service MI5 as a possible spy. On the outbreak of World War II, Lachmann was sent to Quebec on the Duchess of York as an enemy alien and also interned on the Isle of Man, but, after pressure from his employers, he was eventually permitted by the authorities to continue his work for Handley-Page in . In 1949, he became a British citizen. He stayed with Handley-Page for the remainder of his career, eventually becoming head of research, until 5 months before his death at Chorleywood, Hertfordshire, in 1966. (en)
  • Густав Виктор Лахманн (нем. Gustav Lachmann; 3 февраля 1896, Дрезден — 30 мая 1966, Чорливуд[d], Хартфордшир) — немецкий военный лётчик и авиационный инженер, большую часть своей профессиональной карьеры проработавший в британской авиастроительной компании «Handley Page». Вместе с Фредериком Хэндли Пейджем он был одним из изобретателей переднего паза крыла самолёта.Значительный вклад Густава Лахманна в конструкцию авиационного крыла отмечал Теодор фон Карман. (ru)
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  • Густав Виктор Лахманн (нем. Gustav Lachmann; 3 февраля 1896, Дрезден — 30 мая 1966, Чорливуд[d], Хартфордшир) — немецкий военный лётчик и авиационный инженер, большую часть своей профессиональной карьеры проработавший в британской авиастроительной компании «Handley Page». Вместе с Фредериком Хэндли Пейджем он был одним из изобретателей переднего паза крыла самолёта.Значительный вклад Густава Лахманна в конструкцию авиационного крыла отмечал Теодор фон Карман. (ru)
  • Gustav Victor Lachmann (* 3. Februar 1896 in Dresden; † 30. Mai 1966 in , Hertfordshire, Großbritannien) war ein deutscher Aerodynamiker österreichischer Herkunft. Er entwickelte während des Ersten Weltkrieges unabhängig von dem Briten das Prinzip der Vorflügel und gilt mit dieser Erfindung als Pionier der europäischen Luftfahrt. (de)
  • Gustav Victor Lachmann (3 February 1896 – 30 May 1966) was a German aeronautical engineer who spent most of his professional life working for the British aircraft company Handley Page. He was, with Frederick Handley Page, the co-inventor of the leading edge slot. In 1949, he became a British citizen. He stayed with Handley-Page for the remainder of his career, eventually becoming head of research, until 5 months before his death at Chorleywood, Hertfordshire, in 1966. (en)
rdfs:label
  • Gustav Lachmann (de)
  • Gustav Lachmann (en)
  • Лахманн, Густав Виктор (ru)
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