NADC johsnsville,PA

The Naval Air Development Center (NADC) in Johnsville, Pennsylvania, was established during World War II as the Naval Aircraft Modification Unit in 1944. Its primary mission was to conduct research, development, testing, and evaluation of naval aviation systems, including avionics, human factors, and flight technology. Notably, NADC Johnsville played a pivotal role in early U.S. space programs, training Mercury, Gemini, and Apollo astronauts in its state-of-the-art human centrifuge facility. The center remained a cornerstone of naval research until its closure in 1996, after which its legacy continued through various successor organizations and the preserved centrifuge landmark.