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Old 23rd January 2011 | 18:31
  #35 (permalink)  
lomapaseo
 
Joined: Mar 2002
Posts: 4,569
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From: Florida
Hazelnuts

lomapaseo;
Quote:
excessive TIT is not only a symptom but a probable cause of power loss.
Why would thrust be affected if that is what you set (by setting an EPR or N1) to see an EGT exceedance?

regards,
HN39
Your point is valid. Thrust would not be affected until the engine finally ran down due to loss of pumping of the High compressor.

What would probably happen is that high turbine efficiency would go to hell and the TIT keep going up trying to maintain thrust. To me that is a cascading failure mode.. I view that as a lot more serious than just an EGT rise without other symptoms.
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