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................. ((1 + R) / 3) x 50 lbs., but
not less than 50 lbs. nor
more than 150 lbs.
(R=radius). (Applicable to
any angle within 20[deg] of
plane of control).
Twist................................... 133 in.-lbs.
Push-pull............................... To be chosen by applicant.------------------------------------------------------------------------*Limited to flap, tab, stabilizer, spoiler, and landing gear operation
controls.