---
kind: "section"
citation: "14 C.F.R. § 35.36"
title: "14"
number: "35.36"
heading: "Bird impact."
url: "https://uscodex.org/cfr/14/35.36"
---

# §35.36. Bird impact.


The applicant must demonstrate, by tests or analysis based on tests or experience on similar designs, that the propeller can withstand the impact of a 4-pound bird at the critical location(s) and critical flight condition(s) of a typical installation without causing a major or hazardous propeller effect. This section does not apply to fixed-pitch wood propellers of conventional design.


## Notes

### Amendments

[Amdt. 35-8, 73 FR 63348, Oct. 24, 2008]

### Authority

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

### Source

Source: Docket No. 2095, 29 FR 7458, June 10, 1964, unless otherwise noted.

### Amendments

[Amdt. 35-8, 73 FR 63348, Oct. 24, 2008]