Re: Derate and V-speeds
When choosing your derate temperature, do you therefore work out the maximum TO weight for the given rwy at max thrust, e.g. in Boeing 767 a max TO weight for a given rwy 150,000 kg, 15 degrees OAT and flaps 15, no slope (V1 138, Vr 142, V2 149). If your regulated TO weight is 130,000 kg do you derate your thrust until the V-speeds equal those in the Max TO conditions at full thrust? If this is correct, is the field length still balanced?
Thanks for your help
Kristian