{"data":{"id":"us/14-cfr-29.51","jurisdiction":"us","citation":"14 CFR 29.51","heading":"Takeoff data: general.","body":"(a) The takeoff data required by §§ 29.53, 29.55, 29.59, 29.60, 29.61, 29.62, 29.63, and 29.67 must be determined—\n(1) At each weight, altitude, and temperature selected by the applicant; and\n(2) With the operating engines within approved operating limitations.\n(b) Takeoff data must—\n(1) Be determined on a smooth, dry, hard surface; and\n(2) Be corrected to assume a level takeoff surface.\n(c) No takeoff made to determine the data required by this section may require exceptional piloting skill or alertness, or exceptionally favorable conditions.","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":"ff9de8c213cbf3750e1fa3108655478eddbe578c8f6b67335c10cef3fbdc9ca1","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-29.49","next":"us/14-cfr-29.53"},"notice":"GroundRules: Original legal text. Not legal advice."}