Thread: Rotation
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  #33  
Old September 12th 06, 02:38 PM posted to rec.aviation.piloting
Bob Moore
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Posts: 291
Default Rotation

karl gruber wrote
Bob,
Can you explain that a little further? I don't see any difference in
feel feedback between a Cessna 182 (trim tab) and 185 (stab trim). Why
should there be a difference?


Karl, I have no experience with in the smaller a/c, but as a Boeing
instructor (B-707, B-727), it took a good amount of time to teach a
new jet pilot how to trim because of this effect.

If from level flight, you want to raise the nose for a climb, you
pull back and obviously feel the back pressure from the elevator
being displaced relative to the stabilizer, at this point, trimming
just changes the stabilizer position without putting the elevator
in a new position relative to the stabilizer and releiving the
pressure.

Large trim changes (as in a go-around) consisted of a large number of
trim/release cycles in order to find the exact amount required.

Bob Moore