Re: Ultimate 46% - Any known problems?
Ayro:
I am not sure how many folks have this issue but a real H9 Ultimate guru round where I am showed me about the top wing. Seems it can vibrate out & back in against the center CF rib. You know when you run the engine. It actually can make a banging noise that corresponds to the RPM. This has ripped the wing apart in flight I am told. Mine did this. Fortunately the fix is easy. As I keep the top wing full assembled (gotta have space for 96") I leave it this way. You just put the wing halfs tightly together and wrap clear tape around the entire junction. I you don't keep the wing assembled you should do it each time you assemble. Some never have this problem. You hear it when running the engine if you got it.
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