happywizz wrote: ↑
Wed Jun 21, 2017 3:01 pm
Thanks for all the replies.
My local dealer (versusshop.nl) who provides always excellent service gave me in exchange the demo mast and fuselage to compare. We did examine the (probably) failing one closely but we couldn't find any differences with the good (demo) mast. Maybe the differences are so subtle that you cant see them, only experience while foiling. Anyhow tomorrow seems to be a good breeze to try out it with the other (demo) mast and fuselage. I will let it know how it goes. If the same problem occurs I will be baffled. In that case all my wings are fu#@#& up.
It is not as such an error from the manufacturer IMO.
But the differences causing noise and crazy howling sometimes, are so small and subtle that you can not find these with your eye.
I have had a rear wing that was silent - I lost it and got a new one, exactly the same from the same mold, but it was noisy (I found out after having switched wings and rear wings and mast and fuselage and everything).
Then I have sanded the trailing edge both rounder and sharper (the classic way of removing noise from fins and similar), and also the very tips - still not much difference
Can not see any imperfections either.
So this, and the fact that my friends on race gear, same "model", one is howling like crazy, another is silent - is the reason I know for sure it can be really hard to find the cause.
Tape put at the joints and over screws where there could be "singing" is also an option (I used to find it was NOT coming from here)
Dont blame the manufacturer, it is a problem many experience and usually not a production fault