Irmgard Flügge-Lotz (born 1903-1974) was German born and internationally renowned for her many important contributions to aerodynamics and to automatic control theory.
After graduation Lotz went to work for the Aerodynamische Versuchsanstalt (AVA) in Göttingen, one of the most prominent aeronautical research institutions in Europe, where she developed the "Lotz method" for calculating the lift on a three-dimensional wing and was later promoted to Head of the Department of Theoretical Aerodynamics.
After the war she moved to France and later to the USA
Stanford University says "Flügge-Lotz joined the Stanford faculty in 1950 as the university’s first female professor of engineering. A professor of applied mechanics and of aeronautics and astronautics, emeritus, she was the first woman elected as a fellow by the American Institute of Aeronautics and Astronautics and received the Achievement Award from the Society of Women Engineers.
She made significant advancements in methods for the prediction of aerodynamic pressures on bodies, wings and turbine blades, some of which were adopted as standard procedures throughout the world. In automatic control theory, she developed the first theory of discontinuous, or on-off, control systems. Flügge-Lotz published more than 50 technical papers and wrote two books."
She died in 1974
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