---
kind: "section"
citation: "14 C.F.R. § 23.2105"
title: "14"
number: "23.2105"
heading: "Performance data."
url: "https://uscodex.org/cfr/14/23.2105"
---

# §23.2105. Performance data.

- (a) Unless otherwise prescribed, an airplane must meet the performance requirements of this subpart in—
  - (1) Still air and standard atmospheric conditions at sea level for all airplanes; and
  - (2) Ambient atmospheric conditions within the operating envelope for levels 1 and 2 high-speed and levels 3 and 4 airplanes.
- (b) Unless otherwise prescribed, the applicant must develop the performance data required by this subpart for the following conditions:
  - (1) Airport altitudes from sea level to 10,000 feet (3,048 meters); and
  - (2) Temperatures above and below standard day temperature that are within the range of operating limitations, if those temperatures could have a negative effect on performance.
- (c) The procedures used for determining takeoff and landing distances must be executable consistently by pilots of average skill in atmospheric conditions expected to be encountered in service.
- (d) Performance data determined in accordance with [paragraph (b)](#b) of this section must account for losses due to atmospheric conditions, cooling needs, and other demands on power sources.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704, Pub. L. 113-53, 127 Stat. 584 (49 U.S.C. 44704) note.

### Source

Source: Doc. No. FAA-2015-1621, Amdt. 23-64, 81 FR 96689, Dec. 30, 2016, unless otherwise noted.