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Explanation of N1 & N2 Speeds
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12-23-2007, 07:30 PM
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HSLD
APC co-founder
Joined APC: Feb 2005
Position: B777
Posts: 5,853
To Add, they are expressed in % of max operating speed, not necessarily max speed. So, you can see some engine limit speeds that are over 100%. The actual RPM is not important as different slit-spool motors spin at different speeds.
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HSLD
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