Navigate / EASA

CS 25.405 Secondary control system

ED Decision 2007/010/R

Secondary controls, such as wheel brake, spoiler, and tab controls, must be designed for the maximum forces that a pilot is likely to apply to those controls. The following values may be used:

PILOT CONTROL FORCE LIMITS (SECONDARY CONTROLS).

Control

Limit pilot forces

Miscellaneous:

*Crank, wheel, or lever.

but not less than 222 N (50 lbf) nor more than 667 N (150 lbf) (R = radius in mm).

(Applicable to any angle within 20o of plane of control).

Twist

15 Nm (133 in.lbf)

Push-pull

To be chosen by applicant.

*Limited to flap, tab, stabiliser, spoiler, and landing gear operation controls.

[Amdt. 25/3]