The Fort Heath radar station was a USAF radar site and US Army Missile Master installation of the joint-use site system (JUSS) for North American Air Defense. The Cold War radar station had 2 USAF AN/FPS-6B height finding radars, 2 Army AN/FPS-6A height finders, an FAA ARSR-1 radar emplaced 1958-9, and an Army nuclear bunker. Arctic Towers were the pedestals for the FPS antennas and radomes, while the Air Route Surveillance Radar was on a 50-foot extension temperate tower adjacent to the Federal Aviation Administration building. For Boston Air Defense Sector operations (e.g., for radar tracks supporting the 26th ADMS BOMARC surface-to-air missile site at ), the USAF also used an Air Defense Command operations shelter ()[citation needed] for controlling the FPS-6Bs to process height request