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Old May 16th 08, 02:21 PM posted to rec.aviation.piloting,rec.aviation.student
Paul kgyy
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Posts: 283
Default Pitch vs. trim in flight phases

On May 16, 12:00 am, Mxsmanic wrote:
In a small GA aircraft, in which phases of flight will you normally use mostly
trim to adjust pitch, and in which phases will you normally mostly use the
yoke?


Contrary to the common opinion that trim is used for pitch control, I
view it as more of a speed setting device (though it does this by
adjusting pitch). So, there is an initial adjustment, frequently
marked on the trim indicator, for takeoff to produce, say, 80 knots
climb in takeoff configuration. Then level off, adjust again to
produce cruise speed without yoke pressure. Descending, I usually
leave the pitch alone and just reduce power. Entering pattern, adjust
trim for approach speed. Some aircraft have noticeable pitch change
when lowering flaps - that usually requires a pitch related trim
adjustment, but the ultimate goal is proper speed with flaps down.