by Agnieszka Twardosz (1995), Marlena Nowak (1995) LOK Kraków/Poland
Stefan Drzewiecki was a famous Polish inventor, credited to the most outstanding engineer at the turn of 18th and 19th century. He was working out some types of submarines, propelled by the power of human muscles. He constructed a turbine prototype and a propeller. He was a collaborator and close friend with Gustave Eiffel – the constructor of Eiffel Tower. He initiated the building of a wind tunnel in Saint-Cyr near Versailles, he published his works range of propeller theory. Most of his experiments were done in his own laboratory which was loacated in the Eiffel Tower.
Bleriot XI airplane with a propeller Normale, constructed by Stefan Drzewiecki.
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