PPRuNe Forums - View Single Post - Performance /de-rated take-off
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Old 10th Jul 2010, 05:32
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johns7022
 
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I guess the consensus is that when you make a derate takeoff, there is less of a chance of engine failure then at max takeoff...

Interesting theory...given the whole point of derate take offs is to trend monitor the engines out as far as you can to save money on overhaul cost..

So let's do the math...you run a corporate jet to 3500 hours, and do max take offs every flight if you want..

Or you do some max take offs, some derates and you get to enjoy doing them all the way out to 25000 hrs...

Hmm....let's see...I am at the end of the runway with a couple of 25000 hrs engines that the company mechanic said was OK...and I now need to get over those hills...or I am in a plane that has 3000 hour engines....

How come I feel safer with the 3000 hour engines...is it just me or am I missing something?
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