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Thread: Engine Pressure Ratio
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Old 15th May 2001, 01:18
  #15 (permalink)  
gas path
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Hoppy
The 535e4 epr is a ratio of Pf and P1 only. It isn't an integrated EPR and there is no P8 rake.
For the Tristar 22b 524b4 the IEPR is(PF+P8)/P1
p.s. Hows your thrust reversers?