Description

The Net Takeoff Flight Path (NTOFP) is the vertical profile of an aircraft beyond the takeoff point, giving the minimum height that will be attained by an aircraft flown in accordance with the Aircraft Flight Manual (AFM) following failure of the most critical power unit.

Aircraft Performance calculations prior to take-off must establish that the aircraft will clear all significant obstacles in the obstacle domain (see below) by at least 35 ft.

The NTOFP is calculated taking into account possible deviations from the ideal due to circumstances such as weather, wind, and below average engine performance.