Originally Posted by
aviatorhi
Wrong. That's all well and good when you've got 12000 feet of pavement in front of you. However, when you're at MTOW with only 6000 feet of pavement you have no choice but to use 30* and be on the edge of both the takeoff and climb performance.
You most certainly DO have a choice & that is to go back to the gate & offload weight until the aircraft is legal to make a takeoff on that runway under existing conditions. I don't know what outfit you're working for, but I would guess a freight hauler in a part of the world where crewmember's life is cheap & profit is the only motive. Otherwise, you would have had ground school courses & would have a basic understanding of how a balanced-field takeoff is computed. The reason Boeing doesn't show takeoff numbers for higher flap settings at higher weights is because THE AIRPLANE CAN'T MEET CERTIFICATION CLIMB REQUIREMENTS UNDER THOSE CONDITIONS.
I would guess your company is on Boeing's do not fly list.