Raderach was the World War II location of Prüffeld-Anlage Raderach, a V-2 combustion chamber test facility and liquid oxygen factory code named "Porzellan" (porcelain), "Projekt F" and "Observatorium Raderach". Raderach calibration ensured V-2 turbopumps did not overpressure combustion chambers and was planned for rocket motors to be installed by the nearby Zeppelin Works as part of the Eastern Works. Firings were visible in Switzerland across Lake Constance and testing ended shortly after the facility began operation.