Stefan Drzewiecki
Stefan Drzewiecki was a "Polish scientist, journalist, engineer, constructor and inventor, working in France and the Russian Empire".[1] Also Vienna.
Drzewiecki was a significant developer of the approach of modeling a propeller by certain parameters which would help predict its behavior and performance in an airstream. This approach is called blade element theory.
To do; TO DO: describe his contribution to that theory here and on enmwp. report the unrelated copyvio on w:Flying qualities
References
Patents whose inventor or applicant is Stefan Drzewiecki or Stéphane Drzewiecki or Stephan Drzewiecki or S Drzewiecki or S. Drzewiecki
- Patent FR-1909-410244 (English title: Aeroplane system, Filing date: 1909-12-13)
- Patent BE-1912-04-06 Drzewiecki (English title: Airplane, Filing date: 1912-04-06)
- Patent FR-1913-457856 (English title: Improvements to airplanes, Supplementary to patent: Patent BE-1912-04-06 Drzewiecki, Filing date: 1913-03-20)
- Patent GB-1913-6946 (Filing date: 1913-03-20)
- Patent FR-1917-532096 (Filing date: 1917-05-21)
- Patent GB-1918-124935 (English title: Improvements in self-setting sails or blades of windmills or of propellers for aeroplanes or dirigibles, Filing date: 1918-04-30)
- Patent FR-1918-532096.24159 (English title: Variably angled propeller blade, Supplementary to patent: Patent FR-1917-532096, Filing date: 1918-02-20)
Publications by or about Stefan Drzewiecki or Stéphane Drzewiecki or Stephan Drzewiecki or S Drzewiecki or S. Drzewiecki:
- Drzewiecki, 1889, Essai d'une nouvelle théorie du vol. Les oiseaux considérés comma des aéroplanes animés (Simple title: Test of a new theory of theft. Birds considered as animated airplanes)
- Drzewiecki, 1891, De la concordance des résultats expérimentaux de M. S.-P. Langley sur la résistance de l'air, avec les chiffres obtenus par le calcul (Simple title: The concordance of the experimental results of M. S.-P. Langley on the air resistance, with the figures obtained by calculation, Journal: Rev. Aér.)
- Drzewiecki, 1891, Le vol plané, essai d'une solution mécanique du problème (Simple title: Hovering, testing a mechanical solution of the problem)
- Drzewiecki, 1891, De la concordance des résultats expérimentaux de S. P. Langley, sur la résistance de l'air, avec les chiffres obtenus par le calcul (Simple title: Concordance of S. Langley's experimental results on air resistance with the figures obtained by calculation, Journal: C. R. Acad. Sci.)
- Drzewiecki, 1891, L'aviation de demain (Simple title: The aviation of tomorrow, Journal: Rev. Gén. Sci.)
- Drzewiecki, 1892, Sur une méthode pour la détermination des éléments mécaniques des propulseurs hélicoidaux (Simple title: On a method for the determination of the mechanical elements of helical thrusters, Journal: C. R. Acad. Sci.)
- Sée, 1909, La querelle des hélicoptères. Un dernier mot sur l'article de S. Drzewiecki (Simple title: The quarrel of the helicopters. A final word on S. Drzewiecki's article, Journal: L'Aérophile)
- Drzewiecki, 1909, Dimostrazione utile agl'inventori di elicopteri, turbine ed altri sostentatori a reazione (Simple title: Useful demonstration for inventors of helicopters, turbines and other jet propellers, Journal: Riv. Tech. Aer. Boll. Soc. Aer. Ital.)
- Drzewiecki, 1909, Equations fondamentales pour l'étude expérimentale des aéroplanes (Simple title: Fundamental equations for the experimental study of airplanes, Journal: L'Aérophile)
- Drzewiecki, 1909, Centre les hélicoptères. Réponse de M. Drzewiecki aux diverses critiques de son article 'Fausse Route' (Simple title: Center the helicopters. Mr Drzewiecki's response to the various criticisms of his article 'Fausse Route', Journal: L'Aérophile)
- Drzewiecki, 1909, Des hélices aériennes (Simple title: Aerial propellers)
- Drzewiecki, 1909, Fausse route. Simple démonstration à l'usage des inventeurs d'hélicoptères, turbines et autres sustentateurs à réaction (Simple title: Wrong way. Simple demonstration for the use of inventors of helicopters, turbines and other reaction lifts, Journal: L'Aéro)
- Drzewiecki, 1909, Fausse route. Simple démonstration à l'usage des inventeurs d'hélicoptères, turbines et autres sustentateurs à réaction (Simple title: Wrong way. Simple demonstration for the use of inventors of helicopters, turbines and other reaction lifts, Journal: L'Aérophile)
- Drzewiecki, 1909, An experimental laboratory of aerodynamics (Simple title: An experimental laboratory of aerodynamics, Journal: Aeronautics (UK))
- Drzewiecki, 1909, La question des hélicoptères. Réponse à M. Lecornu (Simple title: The helicopter question. Response to Mr. Lecornu, Journal: L'Aérophile)
- Drzewiecki, 1909, Fausse route. Simple démonstration à l'usage des inventeurs d'hélicoptères turbines et autres sustentateurs à réaction (Simple title: Fausse route. Simple demonstration for the use of inventors of turbine helicopters and other reaction-powered aircraft, Journal: L'Aérophile)
- Drzewiecki, 1909, Rectification à propos de l'article 'Fausse route' (Simple title: Correction about the article 'False route', Journal: L'Aérophile)
- Drzewiecki, 1909, Rectification à propos de l'article 'Fausse route' (Simple title: Correction regarding the article “Wrong track”, Journal: L'Aérophile)
- Drzewiecki, 1909, Des hélices aériennes; théorie générale des propulseurs hélicoïdaux et méthode de calcul de ces propulseurs pour l'air (Simple title: Aircraft propellers; general theory of helical propellers and method of calculating these propellers for air)
- Drzewiecki, 1909, Formules pratiques pour le calcul des hélices aériennes (Simple title: Practical formulas for calculating aircraft propellers, Journal: C. R. Acad. Sci.L'Aérophile)
- Pérez de Nueros, 1909, Reflexiones sobre los aeroplanos (Simple title: Reflections on airplanes, Journal: Revista de Locomoción Aérea)
- Brunet y Viadera, 1910, Curso de Aviación (Simple title: Course of aviation)
- Drzewiecki, 1912, Aéroplane système Drzewiecki à stabilité longitudinale automatique (Simple title: Drzewiecki system aeroplane with automatic longitudinal stability, Journal: La Conq. l'Air)
Stefan Drzewiecki (or Stéphane Drzewiecki or Stephan Drzewiecki or S Drzewiecki) participated in these events:
- International Aeronautical Congress of 1889 (Start date: 1889-07-31, Locations: Paris, Country: FR, Tech focus: • • )
More patents: Improvements in Bicycles. GB GB189602017A Stephane Drzewiecki Stephane Drzewiecki Priority 1895-08-26 • Filed 1896-01-28 • Granted 1896-03-28 • Published 1896-03-28 Improvements in Submarine Torpedo Launching Apparatus. GB GB189814141A Stephane Drzewiecki Stephane Drzewiecki Priority 1898-06-25 • Filed 1898-06-25 • Granted 1899-06-02 • Published 1899-06-02 Protective rim system for tires FR FR588E Drzewiecki Stephane Drzewiecki Stephane Priority 1902-03-26 • Filed 1902-06-28 • Granted 1903-02-14 • Published 1903-02-14 Airplane system FR FR410244A Stephane Drzewiecki Stephane Drzewiecki Priority 1909-12-13 • Filed 1909-12-13 • Granted 1910-05-14 • Published 1910-05-14 Improvements in or relating to Aerial Machines. GB GB191306946A Stephane Drzewiecki Stephane Drzewiecki Priority 1912-04-06 • Filed 1913-03-20 • Granted 1913-09-18 • Published 1913-09-18 6946. Drzewiecki, S. April 6, 1912, [Convention date]. Aerial machines without aerostats; planes, arrangement and construction of; steering; adapted to travel also on land; shock of landing, deadening.- An aerial machine is provided with two or more supporting-surfaces arranged in tandem and made … Improvements to airplanes FR FR457856A Stephane Drzewiecki Stephane Drzewiecki Priority 1912-04-06 • Filed 1913-03-20 • Granted 1913-09-27 • Published 1913-09-27 Variable pitch propeller blade FR FR532096A Stephane Drzewiecki Anciens Ets Sautter Harle Priority 1917-05-21 • Filed 1917-05-21 • Granted 1922-01-27 • Published 1922-01-27 Variable pitch propeller blade FR FR24159E Stephane Drzewiecki Anciens Ets Sautter Harle Priority 1918-02-20 • Filed 1918-02-20 • Granted 1922-03-18 • Published 1922-03-18 Improvements in Self Setting Sails or Blades of Windmills or of Tractor Screws … GB GB124935A Stephane Drzewiecki Stephane Drzewiecki Priority 1918-04-30 • Filed 1918-04-30 • Published 1919-04-10 124,935. Drzewiecki, S., and Rey, J. April 30, 1918. Blades &c.-Relates to self-adjusting screw blades for windmills and aircraft propellers adapted to allow a substantially constant speed to be obtained in spite of variations in the speed of the wind or the aircraft. A socket c mounted on the end … Metal wing propeller FR FR519759A Stephane Drzewiecki Anciens Ets Sautter Harle Priority 1919-12-24 • Filed 1919-12-24 • Granted 1921-06-15 • Published 1921-06-15 Diffuser-nozzle system for hydraulic and aerial turbo-reels and for hydraulic … FR FR572787A Stephane Drzewiecki Priority 1923-01-17 • Filed 1923-01-17 • Granted 1924-06-12 • Published 1924-06-12 Process for automatically varying the pitch of the propellers in flight, and … FR FR791526A Stephane Drzewiecki Priority 1934-09-12 • Filed 1934-09-12 • Granted 1935-12-12 • Published 1935-12-12 Process for automatically varying in flight the incidence of propeller blades, … FR FR791525A Stephane Drzewiecki Priority 1934-09-12 • Filed 1934-09-12 • Granted 1935-12-12 • Published 1935-12-12 Ball stop FR FR792784A Stephane Drzewiecki Priority 1934-10-11 • Filed 1934-10-11 • Granted 1936-01-10 • Published 1936-01-10
| Names | Stefan Drzewiecki |
|---|---|
| Countries | FR, PL, RU |
| Locations | France, Russia |
| Occupations | scientist, journalist, engineer, constructor, inventor |
| Tech areas | HTA, Airplane, Propellers |
| Accreditations | |
| Affiliations | |
| Family name | |
| Birth date | 1843 |
| Death date | 1938 |
| Wikidata id | Q1975471 |
