RCU Forums - View Single Post - Structural failure/ Extreme elevator flutter on Somenzini 72" Yak?
Old 10-15-2004 | 05:10 PM
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warplaneinsane
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From: somerville, MA
Default RE: Structural failure/ Extreme elevator flutter on Somenzini 72" Yak?

I don't think just because one guy lost two of the Yaks it should be considered "weird" One was lost due to wing failure, and one was lost to flutter. The one lost to flutter was not set up by the pilot, rather it was shipped to him ready to fly by Wayne Ulery himself! So I have a hard time seeing that the setup was at fault. Also don't forget, both of the crashes were witnesed by not only other good, knowelgeable pilots, but by some very knowelgeable factory reps, such as Ray Labonte of composite-ARF.
The second flutter incident was at the same IMAC contest, but a totally different pilot from Brazil, whom upgraded the included hardware to 4/40 rods and after market horns, and was using digital servos all around, and still got flutter.
Besides all that, I did'nt even mention all the threads I've read about the very fragile landing gear design, or the many models that were shipped from this first batch with wrong incidences that Quique replaced at no charge. I believe it was either Quique or Wayne that posted about 200 of the Somenzini Yaks had been sold and were out there flying. While perhaps the structural failure has been confined to a couple of competition pilots, the landing gear failure and incedence problems have been much more prevalent.
Nope, Mine is going Back, I think maybe a dave Patrick Edge is a good alternative. I still want one, but i think I'll wait and see how they turn out before I buy another. Anyone want to buy mine? (NIB) $399.00 + shipping.
Chuck