Current through September 30, 2024
Section 25.779 - Motion and effect of cockpit controlsCockpit 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. |
Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-72, 55 FR 29778, July 20, 1990