Ohain may refer to:
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Ohain, Belgium
Ohain (; wa, Ohin) is a Belgian village and district of the municipality of Lasne, Wallonia in the province of Walloon Brabant
Walloon Brabant (french: Brabant wallon ; nl, Waals-Brabant ; wa, Roman Payis) is a province located in Belgium's ...
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Ohain, Nord, France
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Hans von Ohain
Hans Joachim Pabst von Ohain (14 December 191113 March 1998) was a German physicist, engineer, and the designer of the first operational jet engine. Together with Frank Whittle he is called the "father of the jet engine". His first test unit ran ...
(1911–1998), one of the inventors of the jet engine
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