Stefan Drzewiecki, submarine inventor for the Russian and French navies (1877-1900) Authors Claudine Fontanon École des hautes etudes en sciences socials. Centre Alexabdre Koyre, Paris Keywords: inventor, naval engineering, submarine, aviation Abstract This article concerns Stefan Drzewiecki’s naval engineering researches. This civil engineer was born into a rich polish Europeanized family and graduated at the Ecole centrale des arts et manufactures in Paris. Inventor in 1877 of a submarine prototype named “Podascaphe”, Drzewiecki pursued the improvement of his concept in terms of propulsion, manoeuvring, speed and autonomy . His first prototypes were mass-produced by the Russian navy, but the lack of interest by the Russian authorities in the early 1890s convinced him to settle in Paris. In 1896, he took part in a competition organized by the French Admiralty for a new type of submarine. The prize he received gave him enough freedom to pursue his activities as an inventor. He subsequently took an active interest in airplanes and conceived a propeller theory that drew him closer to Gustave Eiffel, who was himself involved in aerodynamics, and also collaborated with the Laboratoire aérodynamique d’Auteuil. This Polish engineer died in 1938 after a long career entirely devoted to naval engineering and aviation Downloads PDF (Català) Published 2011-05-20 Issue Nova època, vol. 3 (2) : 2010 Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Actes d’Història de la Ciència i de la Tècnica, authors accept the following terms:Authors assign to Societat Catalana d’Història de la Ciència i de la Tècnica (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Actes d’Història de la Ciència i de la Tècnica.Authors answer to Societat Catalana d’Història de la Ciència i de la Tècnica (SCHCT) for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.SCHCT declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Actes d’Història de la Ciència i de la Tècnica is not responsible for the ideas and opinions expressed by the authors of the published articles.