The General Electric AN/TPQ-1O Course Directing Central was a light-weight, two-unit, helicopter transportable, ground based bombing system developed for use by the United States Marine Corps to provide highly accurate, day/night all weather close air support. This self-contained system was designed to guide an aircraft, equipped with the proper control equipment, to a release point for accurate all-weather delivery of ordnance and supplies to a preselected target. The AN/TPQ-10 and its operators were known as an ‘’Air Support Radar Team’’ (ASRT) and were employed by the Marine Air Support Squadrons within the Aviation Combat Element.