14 CFR 29.661
§ 29.661 Rotor blade clearance.
United States · 14 CFR — Aeronautics and Space · Status: effective
Cite this
- Citation
- 14 CFR 29.661, § 29.661 Rotor blade clearance, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54780
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Full text
There must be enough clearance between the rotor blades and other parts of the structure to prevent the blades from striking any part of the structure during any operating condition.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.