Walter Hohmann

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Walter Hohmann
Born	18 March 1880 (1880-03-18) Hardheim, German Empire
Died	11 March 1945 (1945-03-12) (aged 64) Essen, Germany
Nationality	German
Known for	Hohmann transfer orbit
Scientific career
Fields	Engineer

Walter Hohmann (/ˈhoʊmən/; German: [ˈhoːman]; 18 March 1880 – 11 March 1945) was a German engineer who made an important contribution to the understanding of orbital dynamics. In a book published in 1925, Hohmann demonstrated a fuel-efficient path to move a spacecraft between two different orbits, now called a Hohmann transfer orbit. He received his Ph.D. from the RWTH Aachen University in 1920.