Developing a quiet fan for Environmental Control and Life Support systems to enhance the livable environment within the spacecraft has been a challenge. A Foil Gas Bearing Supported Fan is proposed which will be quiet, efficient, reliable, contamination free, compact, and lightweight. In Phase I a set of foil gas bearings necessary to prove out the feasibility of the program will be manufactured and tested. In Phase II a complete prototype fan will be manufactured and tested incorporating the technology proved out in Phase I. In Phase III the developed fan will be system tested for airworthiness.
