 He was with the 94th from November 1917 to June 1918, when he switched to the 27th Aero Squadron, where he stayed until November 1918.At the 27th, his duties included working at the Aircraft Acceptance Park test facility at Orly, France.Prinz subsequently told journalists that he crashed 14 to 18 airplanes, was nicknamed "America's German Ace" as a result, (he was also called "Crash Ace Prinz) and that he was wounded in the war and carried a silver plate in his head from his last plane crash.