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The following question came from Jim Knodel


What is the best thing to do in windy weather? Should the CG be moved forward? A lot or isn't it necessary to move it?


From : Don Stackhouse

Generally it should not be necessary to move it. If anything, I think I'd be inclined to move it aft a little in really choppy air. A forward C/G increases the static stability, which means the plane tries to react to every little gust and bump, which in turbulence can actually make things worse. Moving the C/G aft reduces the static stability, so the airplane has less of a desire to correct immediately for every little disturbance.

Reducing the static stability does mean that you will have to provide more of the corrections for the bigger, more sustained disturbances. However, if your skills aren't up to that, it could be that you're also not ready to be flying in that much turbulence.

What really matters in keeping things steady in choppy air is the dynamic stability, i.e.: the ability to damp out oscillations. The Chrysalis has massive amounts of dynamic stability because of the long tail moment arm.

Don Stackhouse
DJ Aerotech



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