Originally Posted by
SpeedTaped
I am sorry but WHAT?
Flap extension beyond F9 reduces ground roll required during a takeoff. This is vital in hot and high operations when you are runway distance limited. The engines still burn whatever they would normally burn at ALT TO1 or TO1.
Should of been more clear. In the SIM they had us try flaps 18 on approach. So I was talking about approaches not takeoffs.