IRImplementing rule
CS 25.779Motion 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 wing-flaps up; rearward for flaps down |
| Trim tabs (or equivalent) | Rotate to produce similar rotation of the aeroplane 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 |
(2)Auxiliary.
| Controls | Motion and effect |
|---|---|
| Landing gear | Down to extend |
IR · CS 25.779 — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023