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Old 10-13-2004 | 06:15 PM
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Bob Pastorello
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From: El Reno, OK
Default RE: Improve (inverted) flight performance by 'trimming' both ailerons up?

Guys, there is really a LOT of "personal taste" in the "down elevator" thing. I have found that EVERY time I try to set a plane for "just a breath of down", I have a tail-heavy, belly-pitching, poor snapping, over-damped TWITCHY handful. Jock and I both fly in WIND...and that is NOT where you want a tail heavy, over-pitch-damped airplane bouncing around.

So - I've found I'm happiest with a slightly nose-heavy condition, which when all is said and done requires a touch of UP trim on the elevator. Which is the WRONG direction to make the inverted elevator as responsive as we like. To work around that, I just increase the travel on the down elevator, and decrease the expo a bit. My brain and fingers "think" it's being more responsive, so it's just a "breath" of down on inverted.

Others may disagree, and some will say there is actually an airplane out there that is "nearly hands off inverted" and NOT twitchy - however - walk around the pits, ask guys questions, and I think you'll find it quite a bit different in practice than in theory.

Solid airplanes that lock on are NOT tail heavy.