Control | Maximum forces or torques | Minimum forces or torques |
Aileron: | ||
Stick | 100 lbs | 40 lbs. |
Wheel1 | 80 D in.-lbs2 | 40 D in.-lbs. |
Elevator: | ||
Stick | 250 lbs | 100 lbs. |
Wheel (symmetrical) | 300 lbs | 100 lbs. |
Wheel (unsymmetrical)3 | 100 lbs. | |
Rudder | 300 lbs | 130 lbs. |
1 The critical parts of the aileron control system must be designed for a single tangential force with a limit value equal to 1.25 times the couple force determined from these criteria.
2D = wheel diameter (inches).
3 The unsymmetrical forces must be applied at one of the normal handgrip points on the periphery of the control wheel.
14 C.F.R. §25.397