Originally Posted by
gearlever
After a couple of T/Os I was able to convince most CPTs (at that time I was a SFO) to use full thrust on heavy T/Os.
It didn't really matter... Even with full blast it was adrenalin pure.
You may have a point, on the validity of the data above tested temperatures. If the data was accurate, then doing a takeoff at an assumed temperature well above ambient removes the variable of temperature error for the actual condition, replaced with the question of the accuracy of the assumed temp performance. The engine thrust output for a given temp is straightforward to determine, so the values should be reasonable, and would have been possible to measure for accuracy using an assumed temp, and correcting for the difference of actual vs assumed TAS.