The Lippisch DM-1 was a single-seat research glider that was designed and built in Germany from 1944.
Lippisch DM-1
The DM-1 modified for wind tunnel testing by NACA.
Lippisch DM-1 in restoration at the Smithsonian
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 program, he was the designer of the world's first rocket-powered glider.
Alexander Lippisch, with Günther Grönhoff in the cockpit of the Storch V.