14 C.F.R. § 23.1149 Propeller speed and pitch controls.
Title 14 - Aeronautics and Space
(a) If there are propeller speed or pitch controls, they must be grouped and arranged to allow— (1) Separate control of each propeller; and (2) Simultaneous control of all propellers. (b) The controls must allow ready synchronization of all propellers on multiengine airplanes.
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 23.1149 Propeller speed and pitch controls.
