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GP SU 31 sukhio 160?

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GP SU 31 sukhio 160?

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Old 04-01-2009 | 05:50 PM
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From: Bardonqueensland, AUSTRALIA
Default GP SU 31 sukhio 160?

I have a new performance series su31 it got wing flutter on 2nd flight i found the wing to be very weak all rib's are balsa not ply.
it's powered by moki 210 20-10 prop,maybe it's to much.
Old 04-01-2009 | 06:16 PM
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Default RE: GP SU 31 sukhio 160?

Did you seal the hinge lines and use good servos?? I had one with a DA 50 with no problems. I had a couple dozen flights on it then sold it to my flying buddy how outfitted it with an OS 160 and he is 3D'ing the daylights out of it with no problems!!
Old 04-01-2009 | 07:50 PM
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Default RE: GP SU 31 sukhio 160?

Same here, no problems whatsoever with a gasser on mine. Great flying airplane.
Old 04-01-2009 | 09:32 PM
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Default RE: GP SU 31 sukhio 160?

Ply ribs on a 77 inch?there must be more to the flutter story.Slow it down a bit.Seal gaps.If you got sloppy servos,fix them.

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