Thank you very much for your replies!
I am still a little bit confused. I am stuck in my mind by thinking that if an assumed temperature like OAT 45 C is set in the FMC, it would have to increase the performance of the engine?? Since it would be a hot day with degraded performance the engines have to work harder, no?
For me I would have better understanding if I would set -20C because that would mean that the engines wouldn't work as hard to get the plane airborne, ?? I am confused.
Please help me get a better understanding of this.
thanks,
pt