14 CFR · Part 29
14 CFR § 29.51
Takeoff data: general.
(a)
The takeoff data required by §§ 29.53, 29.55, 29.59, 29.60, 29.61, 29.62, 29.63, and 29.67 must be determined—
(1)
At each weight, altitude, and temperature selected by the applicant; and
(2)
With the operating engines within approved operating limitations.
(b)
Takeoff data must—
(1)
Be determined on a smooth, dry, hard surface; and
(2)
Be corrected to assume a level takeoff surface.
(c)
No takeoff made to determine the data required by this section may require exceptional piloting skill or alertness, or exceptionally favorable conditions.
Regulations Referenced
Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.
Primary Source