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roll trim, pitch trim
I use the roll trim typically once or twice each flight. Just enough to
null out passsengers, baggage (if any) and uneven fuel loading. You may
remember from discussions of old that many fuel systems drain one tank
more before the other, for what ever reasons.
Also, I have alot of friction in my stick, on purpose, so when I move it
a little from neutral, it tends to stay there. This, of course, is
greater than the roll trim, but less precise. So I tend to use both
Overall, a little roll trim is helpful, and I wouldn't want it to be
ground adjustable as I never seem to know ahead what is going to be
Also, I have an extra washer under the left wing to correct for gross
differences from side to side.
As for the pitch spring. I have, at times, really pulled back hard on
that thing. I mean really hard, such that I can barely hold it there for
a length of time. This, of course, makes that stall condition nearly
impossible to maintain for any length of time. The spring shows no signs
of wear at the last annual (Feb).
Lastly, a pair of giant "chip clips" works great to prevent rudders
flapping in the breeze.
One more thing. I finally decided, after getting mad and stirring up the
doooo myself, that the factory's shortcomings is just "part of the
challenge" of building a homebuilt. If you knew what David Jackson went
through (kit number 12 I believe), you would be amazed, and he has
hundreds of hours on his now.
Hope this all helps.
Bob Ginsberg - Velocity N173BG - Big Ape Gyms