numbers
Max thrust should not be used during engine out take offs for de-rate for Vmcg consideration ; .however the airlines now must provide additional take-off performance charts as well as proper training for crew,since it's common sense to firewall the throttle when you feel chanlleged by the remaining runway.
My question again was: how do aircraft/engine manufacturers get these (i.e 6% 10% )prercentage of power certified ,are they just arbitary?do they need to test each power settings?Where do there numbers come from ,which regulation?