{"data":{"id":"us/14-cfr-27.399","jurisdiction":"us","citation":"14 CFR 27.399","heading":"Dual control system.","body":"Each dual primary flight control system must be designed to withstand the loads that result when pilot forces of 0.75 times those obtained under § 27.395 are applied—\n(a) In opposition; and\n(b) In the same direction.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT","Subpart C—Strength Requirements"],"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":"0d31298c44fd31ae584b62754bbcb5d89c6a6dd6367d9378dba151ab6608a7a9","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-27.397","next":"us/14-cfr-27.411"},"notice":"GroundRules: Original legal text. Not legal advice."}