With the development of increasingly complex weapon systems comes the need to train personnel to operate these systems, which now require an increasing array of aircrew skills. This paper focuses attention on the need for development of Part Task Trainers (PTT) which enable aircrews to acquire these skills in a timely and cost-effective manner. It presents a multidiscipline view of PTTs, as perceived by an Engineering Psychologist, a Fighter Pilot, and a Design Engineer. It briefly reviews the record of PTT development, focusing on the importance of front-end analysis of training requirements as the basis for considering and selecting training approaches that may effectively be met by PTTs. Target areas for PTT applications are discussed and proposals are offered for the development of some unique PTT concepts including the potential for increased use of generic and specialized PTTs. Potential solutions, cost savings benefits, and improved training expectations are discussed.