CS 25.405 Secondary control system

• ED Decision 2007/010/R found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

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). <table border="1" cellpadding="0" cellspacing="0" width="607"><tr><td valign="top" width="175"><p><b>Control </b></p></td><td valign="top" width="432"><p><b>Limit pilot forces </b></p></td></tr><tr><td valign="top" width="175"><p>Miscellaneous: </p><p>*Crank, wheel, or lever. </p></td><td valign="top" width="432"><p><div class="image-container"><img alt="EASA EAR image" src="/static/files/file_2bBa0hhF744/image103.png"/></div></p><p>but not less than 222 N (50 lbf) nor more than 667 N (150 lbf) (R = radius in mm). </p><p>(Applicable to any angle within 20^o of plane of control).</p></td></tr><tr><td valign="top" width="175"><p>Twist </p></td><td valign="top" width="432"><p>15 Nm (133 in.lbf) </p></td></tr><tr><td valign="top" width="175"><p>Push-pull </p></td><td valign="top" width="432"><p>To be chosen by applicant. </p></td></tr></table> \*Limited to flap, tab, stabiliser, spoiler, and landing gear operation controls. [Amdt. 25/3]