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Old 18th July 2012 | 21:52
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Tonka777
 
Joined: Feb 2009
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From: I.o.W
Rated Thrust, At Which RPM?

I have a question about published thrust figures for turbojet engines. Apologies if this has been asked before, i did search, but didn't find anything conclusive.

I am interested to know whether rated thrust is given at 100% RPM or max RPM?

For example, under ISA conditions, the RR Adour might have a rated thrust of 5115lb, and N1 limitations of 99% N1 for maximum continuous operation, and 104% N1, maximum dry, for 30 minutes.

Would that rated thrust figure be valid only for 100% N1, with any RPM increase on that 100% providing an increase in thrust?

Thanks for any assistance.

Last edited by Tonka777; 18th July 2012 at 21:54.
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