You can help expand this article with text translated from the corresponding article in French. (October 2017) Click for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at :fr:René Leduc (ingénieur); see its history for attribution. You may also add the template {{Translated|fr|René Leduc (ingénieur)}} to the talk page. For more guidance, see Wikipedia:Translation.

René Leduc (1898–1968) was a French engineer who worked on ramjets. In 1949 the Leduc 0.10 became the first aircraft to fly under the power of ramjets alone. Development of this aircraft had begun in 1937, but was severely delayed by the Second World War.^[1]

After cancellation of French Air Ministry contracts for the Leduc ramjet aircraft projects, in 1958 Leduc's company converted from aeronautics to hydraulics, becoming known as 'Hydro Leduc' and eventually focussing on production of hydraulic pumps for excavators.^[2]

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