14 CFR 25.393
§ 25.393 Loads parallel to hinge line.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 25.393, § 25.393 Loads parallel to hinge line, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54033
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Full text
(a) Control surfaces and supporting hinge brackets must be designed for inertia loads acting parallel to the hinge line.
(b) In the absence of more rational data, the inertia loads may be assumed to be equal to KW, where—
(1) K = 24 for vertical surfaces;
(2) K = 12 for horizontal surfaces; and
(3) W = weight of the movable surfaces.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.