I will give an ex. of what my question is. Lets take a 757 to "play" around with.
The warmer it is outside, the heavier the air gets and vise versa. So if a 757 during a hot summerday, lets say +30 degrees celsius, makes a T/O, how and what settings would needed to be changed if the A/C made a similar T/O from same airport with same weight in -30 degrees celsius?
Is it a matter throttlesettings or more a flap, slat setting?
Thanks in advance.