Originally posted by weedwhacker
reply to post by Reheat
Reheat, I am relatively confident, based on what I've read, that whatwasthat seems to know what he's talking about RE: large jets.
In particular the comment about the trim....(and I have little doubt he will have the correct answer to your "challenge", there...I see what you are asking, and why....).
Also, the low-level training missions that were hand-flown, makes absolute complete sense, as described, regarding the stab trim, and its preferred position....to "default" to a climb, as a safety measure.
Side note.....when the 757/767 are in full autopilot autoland mode....they do the same thing....the A/P trim does its thing, the elevator servos maintain a bit of constant force....this is all to be "set-up" preparatory to the flare...it also is conducive to the pitch-up required in the event of a missed approach. We have to be aware of this, because although an auto-coupled missed approach is preferred, there are occasions when you will disconnect the A/P (or it disconnects itself) after it has initiated the self-trim ---- which normally occurs as descending through about 300 feet RA. Knowing the way it trims, you are ready for it when transiting to manual.....needs a bit of forward pressure to keep the nose form pitching up excessively.
Hello weedwacker,
Thanks for sticking up for me. I have seen several of you posts. You seem like one of the folks that are clever enough to design and build the airplanes Reheat and used to fly.


