Stefan Drzewiecki

Stefan Drzewiecki
Stefan Drzewiecki
BornJuly 26, 1844
Kunka, Russian Empire
DiedApril 23, 1938 (1938-04-24) (aged 93)
Paris, France
NationalityPolish
EducationÉcole Centrale Paris
Occupation(s)Engineer, constructor and inventor
Known forSubmarine design
Blade element theory
Drzewiecki drop collar
AwardsOrder of St. George Imperial Order of Saint George ribbon

Stefan Drzewiecki (Polish: [ˈstɛfan d͡ʐɛˈvjɛt͡skʲi]; Russian: Джеве́цкий Степа́н Ка́рлович (Казими́рович); Ukrainian: Джеве́цький Степа́н Ка́рлович (Казими́рович); 26 July 1844, Kunka (ru), Podolia, Russian Empire (today Kunka (uk), Ukraine) – 23 April 1938, Paris) was a Polish scientist, journalist, engineer, constructor and inventor, known for designing and constructing the world's first electric-powered submarine. He worked mainly in France and the Russian Empire.[1][2][3]

He built the first submarine in the world with electric battery-powered propulsion in 1884. He also independently developed the blade element theory (BET), a mathematical process used to determine the behavior of propellers.

  1. ^ Branfill-Cook, Roger (2014). Torpedo: The Complete History of the World's Most Revolutionary Naval Weapon. Seaforth Publishing. p. 117. ISBN 9781848322158.
  2. ^ Gudmundsson, Snorri (2013). General Aviation Aircraft Design: Applied Methods and Procedures. Butterworth-Heinemann. p. 640. ISBN 9780123973085.
  3. ^ Cite error: The named reference Drzewiecki was invoked but never defined (see the help page).