CFR
- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
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- Title 48 - Federal Acquisition Regulations System
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- Title 50 - Wildlife and Fisheries
27.629—Flutter.
Each aerodynamic surface of the rotorcraft must be free from flutter under each appropriate speed and power condition.
Code of Federal Regulations
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