14 C.F.R. § 27.399 Dual control system.
Title 14 - Aeronautics and Space
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.
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart C—Strength Requirements
Control Surface and System Loads
§ 27.399 Dual control system.
