Karl Otto Heinrich Lange, Dr.-Ing. (1903 – November 29, 1973) was a pioneer in aviation (soaring), atmospheric science, engineering education, and biomedical engineering (effects of gravity and vibration). To carry out this work, MIT secured funds to purchase a Cessna cabin monoplane powered with a 120 horsepower (89 kW) Warner engine. Thedaily flights of this plane were part of a research program designed to gain new knowledge to aid in weather forecasting by measuring the variation of temperature and moisture at various altitudes in different air currents.