14 CFR 25.521
§ 25.521 General.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 25.521, § 25.521 General, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54064
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Full text
(a) Seaplanes must be designed for the water loads developed during takeoff and landing, with the seaplane in any attitude likely to occur in normal operation, and at the appropriate forward and sinking velocities under the most severe sea conditions likely to be encountered.
(b) Unless a more rational analysis of the water loads is made, or the standards in ANC-3 are used, §§ 25.523 through 25.537 apply.
(c) The requirements of this section and §§ 25.523 through 25.537 apply also to amphibians.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.