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Old 26th Apr 2008, 11:48
  #40 (permalink)  
Fredairstair
 
Join Date: Mar 2007
Location: Sunny Sussex
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G'day Old Fella,

If that was a reply to my question, thanks but that wasn't quite what I was getting at.......

I'll try to phrase the question better:

If you had two identical a/c, and on one you selected a derate of say, 20%. On the other you selected an assumed temp reduction that equated to a 20% reduction. I think that on the second a/c, (the one with the ass temp) you actually have more power than you have on the first a/c (the one with the derate) due to the way it's calculated - for example, it's not really 60 degrees OAT outside.

This is leaving aside the issues with advancing the T/L in either case should you require full power. (and whether that's a good idea with a derate)

Can you help with an answer?

Regards,

Fred.
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