Sometimes it is easier to be following than leading. Thanks to all of the notes above, I took my old Evolution down, from last year, and pulled off the lower covering.
It was pretty easy to fit some vertical sheet webbing to the main spar in all of the bays. For the center/root bays I cut slots in the existing sheeting and slid the sheeting in that way. To re-cover I peeled back some of the red and slid the new white covering under it by about 3/8" so that the overlap would be in the right direction to keep out any fuel.
My own personal mod was to extend the wing-tube spar design to reach the servo bay. Now the wing is pretty stiff along its whole span and bends uniformly when loaded through the wing tube.
Regards,
Eric.
ORIGINAL: KGSS28
Hello all :
I have just spent the last two evenings adding strength to my Evolution wings. I followed Troy Newmans advise after studying the plans of several other older pattern planes Namely the Typhoon 2000 and that series planes that were popular back years ago .The wing structure used in the Typhoon built up wing is almost the same as the Evolution with only small differences in design. The shear web is vertical grain 1\16 balsa between each rib just like I added to the Evolution only now I have cross grain 1/8 shear webs. I would think that it would be as strong. The wing is much stiffer now than before. The work was easy to do anyone could do it. As for the comments about inserting the indoard webs blind through the sheeting that is not the case , you can see in the root end very well and also see in from the middle with the covering off making is easy to get the placement correct. I have no guarantee that this will work, I hope it does the plane flies really well . I hope that Ultra and others will keep bringing us good entry Level planes all this needs is a little tweaking .
Thanks Kirk