I don't think the reason is anything to do with fuel consumption.
I know that I can continue the climb to any level I think is suitable because the FL 250 restriction is for MEL dispatch. So...what I'm hoping someone can answer is
Is the primary reason for doing this so that you avoid a bleed trip off due to having 9th stage air required, or is there another reason why it is detrimental to have one wing heated in clear air?
Ps, thanks for your replies
