{"data":{"id":"us/14-cfr-29.181","jurisdiction":"us","citation":"14 CFR 29.181","heading":"Dynamic stability: Category A rotorcraft.","body":"Any short-period oscillation occurring at any speed from VY to VNE must be positively damped with the primary flight controls free and in a fixed position.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT","Subpart B—Flight"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"e5d5c7f4805ddcb01277412ef65302f09bc2812b024b9f7d8099b91665d1b62a","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-29.177","next":"us/14-cfr-29.231"},"notice":"GroundRules: Original legal text. Not legal advice."}