The AN/SPY-1 is a phased array radar system that functions as part of the AEGIS combat system aboard modern U.S. Navy Cruisers and Destroyers. Enlisted personnel, known as radar system controllers (RSCs) operate and maintain the radar system. The RSC must optimize radar performance in a number of disparate environments. In order to enhance a new operator's ability to maintain this optimization, the AEGIS Training Center contracted for the development of a training aid. The resultant Radar System Controller Intelligent Training Aid (RSC ITA) is a PC-based training aid that makes use of a master/apprentice training paradigm. We describe it below.