Text in force at 25-153: from 25-72, effective 20 Aug 1990.
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. Super-charger--------------- 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.
55 FR 29778 · Source