Overview
In 14 CFR § 91.103 Preflight action., the FAA requires takeoff performance data to be determined prior to a flight. Takeoff charts are provided in several forms to allow a pilot to compute the takeoff distance with various flaps configurations or flap configurations. It is imperative that a pilot use the correct chart when performing such calculations. Operating on short runways with obstacles at the departure end without performing takeoff length computations is both illegal and dangerous.
Videos
Did you calculate your takeoff data?