Alexander Martin Lippisch was a German aeronautical engineer, a pioneer of aerodynamics who made important contributions to the understanding of tailless aircraft, delta wings and the ground effect, and also worked in the U.S. Within the Opel-RAK... Wikipedia
Born: November 2, 1894, Munich, Germany
Died: February 11, 1976 (age 81 years), Cedar Rapids, IA
Aircraft designed: Lippisch P.13a, Messerschmitt Me 163 Komet, Messerschmitt Me 263, and more
Books: The Delta wing
Significant advance: first rocket plane; first delta wing to fly; first mass-produced rocket fighter