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Old 10th April 2011 | 12:00
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cp35
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Joined: Aug 2007
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From: Europe
what is 100% N1

I have always wondered, but never been able to find out what 100% means regarding N1,N2,N3.

100% means maximum, yet rotor speeds are often 118% etc, so what do they base 100% on, what does it mean 118% N1, 118% of what?
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