The 1954 designs outperformed the XF-91 in speed, range, and loiter time, as well as including the radar and fire-control systems needed for night and all-weather operation. The era of the dedicated day fighter-type interceptor was over. The surviving prototype, 46-0680, is exhibited in the Research & Development Gallery at the National Museum of the United States Air Force at Wright-Patterson AFB in Dayton, Ohio.