The sun rises over one of the Tactical Air Combat Training System (TACTS) towers being surveyed by U.S. Navy Underwater Construction Team (UCT) 1. TACTS towers were constructed in 1987 to provide aircrew training and performance evaluation in air-to-air combat but are now functionally obsolete. The Beaufort Tactical Aircrew Combat Training System (TACTS) is located offshore from Charleston, South Carolina (USA). Eight towers were constructed for the Beaufort TACTS range which covered an array of 115 by 50 km located 50 to 100 km offshore maintained from Marine Corps Air Station Beaufort, South Carolina.