CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—AIRCRAFT (parts 21 to 50) > PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT > SUBPART C—Strength Requirements (§27.301 to §27.571) > 27.399—Dual control system.

27.399—Dual control system.

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—
(a) In opposition; and
(b) In the same direction.