This paper describes an approach of establishing the training cost for a complex weapons system. The Navy P-3 Training Program in VP-30 and VP-31 was used as a model in establishing the cost parameters. In this program over 5,691 training objectives were developed stretching over seven crew positions and a multitude of training tracks. This paper will show how costs were developed for each crew position describing the costs for learning center, for weapon system trainer, for cockpit procedure trainer, for position trainer and for the aircraft itself.