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The Energy Efficient Engine was a program funded by NASA in the 1970s to develop technologies suitable for energy efficient turbofans. Its goal was to improve thrust specific fuel consumption by 12% compared to a GE CF6-50C. Both General Electric and Pratt & Whitney produced turbofans for the program. The GE core featured a 23:1 high-pressure (HP) ratio ten-stage HP compressor, later used in the GE90 and GEnx. P&W also used a ten-stage HP compressor in their core, but it developed 14:1 pressure ratio.
References
- Hall, Edward J.; Lynn, Sean R.; Heidegger, Nathan J.; Delaney, Robert A. (April 1998), Energy Efficient Engine Low Pressure Subsystem Flow Analysis (PDF), Lewis Research Center, NASA, pp. 6–7, hdl:2060/19980232149
- Ciepluch, Carl C.; Davis, Donald Y.; David E. Gray (1987). "Results.of NASA's Energy Efficient Engine Program" (PDF). Journal of Propulsion and Power. 3 (6): 560–568. doi:10.2514/3.23024. Archived from the original on 2012-04-26.
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