CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—AIRCRAFT (parts 21 to 50) > PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES > SUBPART D—Design and Construction (§25.601 to §25.899) > 25.779—Motion and effect of cockpit controls.

25.779—Motion and effect of cockpit controls.

Cockpit controls must be designed so that they operate in accordance with the following movement and actuation:
(a) Aerodynamic controls:
(1) Primary.
Controls Motion and effect
Aileron Right (clockwise) for right wing down.
Elevator Rearward for nose up.
Rudder Right pedal forward for nose right.
(2) Secondary.
Controls Motion and effect
Flaps (or auxiliary lift devices) Forward for flaps up; rearward for flaps down.
Trim tabs (or equivalent) Rotate to produce similar rotation of the airplane about an axis parallel to the axis of the control.
(b) Powerplant and auxiliary controls:
(1) Powerplant.
Controls Motion and effect
Power or thrust Forward to increase forward thrust and rearward to increase rearward thrust.
Propellers Forward to increase rpm.
Mixture Forward or upward for rich.
Carburetor air heat Forward or upward for cold.
Supercharger Forward or upward for low blower. For turbosuperchargers, forward, upward, or clockwise, to increase pressure.
(2) Auxiliary.
Controls Motion and effect
Landing gear Down to extend.

Code of Federal Regulations

[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-72, 55 FR 29778, July 20, 1990]