This is an example of a device that used a pendulum, connected to an electrical network, to simulate the pitch and yaw motions of the A-4 (V-2) ballistic missile during design and construction. It was invented by Walter Hauessermann, a member of the original A-4 development team in Germany during World War II. He developed and used similar devices after moving to the Marshall Space Flight Center in the United States after the War.
This artifact was constructed for exhibit purposes in 1975 by Dr. Hauessermann, using parts of several original, but incomplete, devices.
Transfer from NASA, George C. Marshall Spaceflight Center