This project is intended to develop a number of technologies and specific solutions to the problem of providing enhanced aircrew comfort particularly during extended missions and in ejection seats. This program will specifically address the issue of physical comfort associated with crew seating as opposed to the general cockpit environment. Efforts will be concentrated on the seat cushion area as this is the essential man/seat interface. A two stage program is proposed. During the first phase, design concepts will be proposed and evaluated. During the second phase, selected designs will be prototyped and tested and where appropriate progressed to qualification. A range of proposals will be prepared; from those which can be retrofitted to existing seats without modification to those intended for incorporation into new seat designs. Supporting analyses will provide the customer with the information to develop cost effective implementation strategies