Ernst Stuhlinger developed which kinds of systems with the man who invented the V-2 rocket?
Wernher von Braun Wernher Magnus Maximilian Freiherr von Braun (March 23, 1912 – June 16, 1977) was a German, later American, aerospace engineer and space architect credited with inventing the V-2 rocket for Nazi Germany and the Saturn V for the United States. He was the leading figure in the development of rocket technology in Germany and the father of rocket technology and space science in the United States.
Fritz von Opel Fritz Adam Hermann von Opel (before 1918 Opel) (4 May 1899 – 8 April 1971), was the only child of Wilhelm von Opel and a grandson of Adam Opel, founder of the Opel company. He is remembered mostly for his spectacular demonstrations of rocket propulsion that earned him the nickname "Rocket Fritz".