Energy Efficient Engine

The Energy Efficient Engine was a program funded by NASA in the 1970s to develop technologies suitable for energy efficient turbofans.[1] 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,[2] later used in the GE90 and GEnx. P&W had a nine-stage HP compressor in their core.

References

  1. ↑ Hall, Edward J.; Lynn, Sean R.; Heidegger, Nathan J.; Delaney, Robert A. (1998), Energy Efficient Engine Low Pressure Subsystem Flow Analysis (PDF), Lewis Research Center, NASA, pp. 6–7, hdl:2060/19980232149, retrieved 2010-08-12
  2. ↑ Ciepluch, Carl C.; Davis, Donald Y.; David E. Gray. "Results.of NASA's Energy Efficient Engine Program" (PDF). Visualmotives.com. Retrieved December 13, 2011.


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