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Old 3rd Mar 2015, 23:45
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president
 
Join Date: Dec 2003
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737NG: CLB-2 higher than TO N1?

I think everyone knows the pros and cons regarding reduced climb thrust. My question was a pure technical question concerning the 737NG. Powershanks seems to be the only one addressing it. Would you in certain circumstances see an increase in N1 with CLB-2 selected? I have been told by instructors better educated than me that it is not possible. But I believe that I have seen and the 25 pct (max assumed T) vs 20 pct ( CLB-2) suggest to me that it is possible. I was wondering if there was some sort of built-in feature which prevented N1 to increase when reduced CLB-2 was selected before departure, but I guess the conclusion is that there isn't. (This is was not a question concerning power up at thrust reduction alt as a company procedure).
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