AN/FPS-6 model donated by Merrill May. Photo by Erv Smalley
AN/FPS-6 Height Finder Radars determined the altitude of aircraft originally detected by search radars. The AN/FPS-6 had an operating range of 200 miles with a height measuring capability to 75,000 feet. These height finders saw service in Alaska, Canada, Iceland, Britain and the Continental United States. Click here for specifications (Courtesy of Dick Barrett's British Air Defence Radar website) or here for Radomes.org virtual museum.