Originally Posted by
Ian W
But more speed when your stab trim is too nose down is your enemy. Reduction in speed would reduce the force to counter the nose down trim so 'piloting' would dictate reducing speed.
I concur. It is also important to realize that at cruise speeds and higher the elevator actuators are not able to supply enough force to push the elevators to their travel limits. Elevator travel at these speeds is hinge moment limited - the faster you go the less you get when applying full hydraulic pressure to the elevator actuators. No amount of crew pulling on the column can get around this. If you are running out of pitch control authority at moderate to high speed, additional speed is not you friend.