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is isentropic efficiency changes with the altitude ?

Aug 06, 2007 by Enis T | Posted in Aircraft

hello everybody,
I asked this question to the engineering category too...sorry for double...
here is the question...
I have a gas turbine engine with the isentropic efficiency either sea level and flight altitude as the following

You are correct in that it won't be constant given the changes of pressure with altitude and temperature.

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