Code of Federal Regulations · Section
§ 27.171 — Stability: General
14 C.F.R. § 27.171
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The rotorcraft must be able to be flown, without undue pilot fatigue or strain, in any normal maneuver for a period of time as long as that expected in normal operation. At least three landings and takeoffs must be made during this demonstration.
Authorizing Statute
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Federal Aviation Administration49 U.S.C. § 106