I'm about to try flying my new composite Kangaroo. I like how they do the hinges by cutting the skin on one side. The question I have is that the top skin which is cut on the elevons has a slight upward curl. When I straingen it out there seems to be a big potential for the wing skins to bind up and cause a loss of control condition.

Has anyone experienced this if so what did you do about it.
Thanks

RC-MAN

The skin is too thin to stop elevon from moving, especially with 8411. The skin will simply bend and sometimes crack if it gets binded. I have binded mine a few times. Be careful of what you lay the wings on because just a little pressure will flex the skin and will bind it. I had to trim one of mine back a little to keep it from binding.
Scott Marr

Hi A simple fix is to open the alevon and on the alevon itself press very firmly on the leading edge lip with your thumb pushing it down then slide your thumb across the lip this will cause the leading edge to tuck uder the wings edge nicely I did this on my roo and had no binding if not you will crack them do it on the rudders too!

Hi Guys

I have sold a ton of these aircraft in the last few months and many are up and running with all sorts of different powerplants ( AMT, JetCats, RAMs, Wrens,etc ). This design is used on the large TOC aircraft as well and has not been a problem. If the raised lip on the wing is a little tight compared to the elevon then a very simple fix is to heat up just slightly the edge of the wing then hyperextend the elevon upwards and hold in position. This will soften the glass layer and raise the edge a little - you will then have a nice straight raised lip.

Enjoy!

Thanks for the input