Lincoln Laboratory was tasked by the FAA to assist the Naval Air Training Command in evaluating the feasibility of using the FAA's TCAS I concept as the document summarizes the results of a brief study and flight test activity conducted to that end. It begins with a review of Lincoln Laboratory's understanding of the nature of the mid-air collision problem at the Naval Air Training Center. This is followed by a brief analysis of a set of documented collisions and near-miss encounters involving aircraft of Navy Training Air Wing 5 at Whiting Naval Air Station in Florida in 1982 and 1983. Experience gained from FAA and Lincoln Laboratory flight tests of similar encounters is reviewed and applied to the Navy encounter data base. This is followed by a review of the results obtained when a Lincoln Laboratory aircraft equipped with a TCAS Experimental Unit (TEU) was flown to Whiting Field to evaluate the ability of TCAS I equipment to perform reliable surveillance in the Naval training environment. Flight test results show that the environment is quite unlike typical civil environments, but that the TCAS surveillance design would be capable of providing a significant degree of protection to Naval trainers.