---
kind: "section"
citation: "14 C.F.R. § 29.51"
title: "14"
number: "29.51"
heading: "Takeoff data: general."
url: "https://uscodex.org/cfr/14/29.51"
---

# §29.51. Takeoff data: general.

- (a) The takeoff data required by §§ [29.53](/cfr/14/29.53.md), [29.55](/cfr/14/29.55.md), [29.59](/cfr/14/29.59.md), [29.60](/cfr/14/29.60.md), [29.61](/cfr/14/29.61.md), [29.62](/cfr/14/29.62.md), [29.63](/cfr/14/29.63.md), and [29.67](/cfr/14/29.67.md) 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.

## Notes

### Amendments

[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-39, 61 FR 21899, May 10, 1996]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5084, 29 FR 16150, Dec. 3, 1964, unless otherwise noted.

### Amendments

[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-39, 61 FR 21899, May 10, 1996]