Kurt Hohenemser

Kurt Hohenemser was born on January 3, 1906, in Berlin, Germany, to the German Jewish musicologist Richard Hohenemser and his English wife Alice Salt. He received his secondary education from the Goethe-Schule in Berlin-Wilmersdorf, Hermann-Lietz-Schule Haubinda, and Ziehenschule in Eschersheim. From 1930 until 1933, Hohenemser taught and conducted research at the University of Göttingen under Ludwig Prandtl, one of the most famous aerodynamics physicists during the 20th century. While at Göttingen, Hohenemser and his colleague William Prager organized a political discussion group, to which they invited another colleague who supported the ideologies of the Nazi Party. After his dismissal, Hohenemser worked briefly for aircraft manufacturer Gerhard Fieseler before going to work as a consultant for Anton Flettner's Flettner Flugzeubau GmbH, whose company specialized in the development and manufacture of helicopters. Kurt Hohenemser was an extraordinary engineer who developed the detailed designs required for the success of Flettner's helicopters. Hohenemser stayed with Flettner's company through the end of World War II. Though considered Jewish by the Nazis because of his Jewish father, Hohenemser's role in Flettner's company provided protection for him and his family during the war. While at Flettner Flugzeubau GmbH, Hohenemser was instrumental in the development of the Fl 282 Kolibri. There were plans for BMW to mass-produce 1,000 Flettner Fl 282 helicopters but they were disrupted when allied forces bombed the designated factory. "Kolibri" was an early ancestor of helicopters with intermeshing rotors|300px ==Life in the United States==

Kurt Hohenemser emigrated from Germany to the United States with his family in 1947. Kurt Heinrich Hohenemser died on April 7, 2001, in St. Louis, Missouri. Up until the age of 91, Hohenemser cross-country skied every winter and he rode a bicycle everywhere into his 80s out of concern for the pollution produced by automobiles. Hohenemser received many accolades during his career, among them the Grover E. Bell Award (1957) and the Alexander Klemin Award (1964) from the American Helicopter Society. == Photo gallery ==

Image:Flettner FL 282.jpg|Flettner Fl 282 Kolibri helicopter Image:Hohenemser_letter.jpg|Letter from Dr. Hohenemser regarding his association with Anton Flettner (page 1 of 2) Image:Hohenemser_letter 001.jpg|Letter from Dr. Hohenemser regarding his association with Anton Flettner (page 2 of 2) Image:Flettner 282 airborne.jpg|Flettner Fl 282 during flight trials after World War II, with US markings == Publications ==

• Kurt H. Hohenemser and Andrew H.P. Swift. "Wind Turbine Speed Control by Automatic Yawing", Journal of Energy, Vol. 7, No. 3 (1983), pp. 237–242. • Gopal H. Gaonkar and Kurt H. Hohenemser. "An Advanced Stochastic Model for Threshold Crossing Studies of Rotor Blade Vibrations", AIAA Journal, Vol. 10, No. 8 (1972), pp. 1100–1101. • Kurt H. Hohenemser. "Attachment of Rotor Blades by Laminated Elastic Straps", Journal of the Aeronautical Sciences, Vol. 19, No. 5 (1952), pp. 350–350. • Kurt H. Hohenemser. "Equations for the Approximate Solution of Dynamic Problems for Stable Linear Systems", Journal of the Aeronautical Sciences, Vol. 16, No. 12 (1949), pp. 723–728. • Kurt H. Hohenemser. "Analysis and test results for a two-bladed, passive cycle pitch, horizontal-axis wind turbine in free and controlled yaw", National Renewable Energy Laboratory, NREL-TP-442-7391, October 1995, pp. 1–134. • Richard von Mises and Kurt H. Hohenemser. "Theory of Flight (Dover Books on Aeronautical Engineering)", Dover Publications; 1st edition (June 1, 1959), 672 pages. • Kurt H. Honenemser, Andrew H.P. Swift, D. A. Peters, Washington University Technology Associates, Inc., Solar Research Institute. "A definitive generic study for sailwing wind energy systems : non-technical summary report : final report", Golden, Colo.: Solar Energy Research Institute, 1979. • Kurt H. Honenemser, Andrew H.P. Swift, D. A. Peters, United States Department of Energy, Solar Research Institute. "The yawing of wind turbines with blade cyclic pitch variation : final report", Goden, Colo. : Solar Energy Research Institute, 1981. • Kurt H. Honenemser, Andrew H.P. Swift, Washington University Technology Associates, Inc.. "The investigation of passive blade cyclic pitch variation using an automatic yaw control system : a subcontract report", New York : American Solar Energy Society; Springfield, Va. : National Technical Information Service, 1982. • Kurt H. Hoheneemser, Robert A. Ormiston, North Atlantic Treaty Organization, Advisory Group for Aerospace Research and Development, Flight Mechanics Panel. "Hingeless rotorcraft flight dynamics", [Neuilly-sur-Seine, France] North Atlantic Treaty Organization, Advisory Group for Aerospace Research and Development [1974]. • Kurt H.Hohenemser. "Die Methoden ƶur Angenäherten Lösung von Eigenwertproblemen in der Elastokinetik", Springer-Verlag, Mar 9, 2013 - Technology & Engineering - 92 pages. • Kurt H. Hohenemser. "Praktische Wege zur angenäherten Schwingungsberechnung elastischer Systeme", Springer, 1930 - 24 pages. • Richard von Mises and Kurt H. Hohenemser. "Theorie und Berechnung der Flugzeuge in elementarer Darstellung", Springer; 6 edition (October 4, 2013), 402 pages. • Kurt H. Hohenemser. "Die Methoden zur angenäherten Lösung von Eigenwertproblemen in der Elastokinetik", Springer; 1932 edition (October 4, 2013), 92 pages. ==References==