MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures Mk II

[OldnGrounded]

[QUOTE=jimtx;10645212]

Originally Posted by Grebe

I think the slope of the stick force per G is positive. It's just not linear in the regime they are concerned with.

Here it is:

§ 25.255 Out-of-trim characteristics.

[. . .]

(b) In the out-of-trim condition specified in paragraph (a) of this section, when the normal acceleration is varied from + 1 g to the positive and negative values specified in paragraph (c) of this section -

(1) The stick force vs. g curve must have a positive slope at any speed up to and including VFC/MFC; and

(2) At speeds between VFC/MFC and VDF/MDF the direction of the primary longitudinal control force may not reverse.