Originally Posted by captplaystation
Current company uses min (determined by EFB ) take-off thrust possible, often DeRate 2 (22k from a 27k engine) & max assumed temp , + improved climb, so take-off N1 = something close to high idle
You use de-rate + assumed temperature with improved climb to save engines on the NG? We use A/C OFF or improved climb only when we can't get out with A/C Auto - not to save money by using less than full takeoff thrust(Classic).