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NASA Glenn Research Center worked with
Williams International 
to leverage the success of the recently completed NASA General Aviation
Propulsion (GAP) Project.
This project resulted in the development of the
Williams FJX-2 turbofan engine. The FJX-2 is a 700-lb thrust engine that
weighs under 100 lb with a 14-inch inlet and is only 41-inches long. A
derivative of this revolutionary engine, the EJ-22, is being FAA certified
and will be used on the twin engine
Eclipse 500 jet.
NASA recently collaborated with Williams and
Mohawk Innovative Technology
(a foil bearing manufacturer) to develop a future derivative of the EJ-22 the
first Oil-Free turbine engine by using foil air bearings. Removing the oil
system components would reduce weight and maintenance, resulting in a lower
cost engine that would enable the production of lower cost aircraft. Due to
lack of funding, this project was canceled in FY04.
