U.S. Air Cadets Study At Yale University -- Cadets of the U.S. Army Air Forces Technical Training Command line up on the campus of 240-year old Yale University in the Eastern U.S. State of Connecticut. A third of the university's academic facilities and half of its living quarter are being used to train 2,700 cadets in photography, armament, maintenance, engineering and communications. March 22, 1943. (Photo by Interphoto News Pictures, Inc.).