I can assure you that there were more than a few wing failures of the SU31. So much so that Sig is out of wing assemblies, and has been for some time. I have been in virtual constant contact with Mike Lee of Sig about a replacement wing for my SU31. That happened three almost four months ago, still no wing. Just last week he pulled two ARF SU31's from distributors in order to send me a replacement wing. Both wings on these two were also bad. I can show you the emails if you wish. It is a crap shoot whether or not you get a decent wing. You may think you have a good wing, but you cannot be sure until you actually remove the covering. Then you will see what some of us already know. Broken ribs, split ribs, spliced sheeting, cap strips cut too short, sheeting too soft....and on and on.

The SU31 was made by a firm that Sig used only for this ARF. Quality control was almost non existent. Sig's regular manufacturer is now producing the new SU31, due to be out soon. I expect the quality will be much improved.

I am flying my SU31, after repairing the wing, but currently not to it's capabilities.

I must give credit to Mike Lee and Sig. He has been up front with me through this whole ordeal. Not once did he question me about something I may have done to cause the wing to fail. Mike has made a generous offer to me as a form of settlement for the problems I have had with the SU31, and I have accepted it. However I still want a replacement wing for my SU31 when they become available.

Vince