ORIGINAL: aggiegolfer
I am scratch building a little sport plane of RCM plans and I can't figure this out. The plans call for a wing bolt filler block to be positioned at the trailing edge. I understand its function. However, the plan does not specify what material I should use. The actual wing bolt block in the fuselage will be plywood. Will 3/16" balsa sheet suffice for the filler block, or does it also need to be plywood.
Thanks
EDIT: missed the post that says the block goes inside the wing. Oh well, the following is a good suggestion for models that are heavy enough to stress the wing/fuselage joint.
The filler goes between the bolt block in the fuselage and the wing, right. So the filler block will simply bear against a section of the wing, right? It's to help the wing. It spreads the compression area out that the wing feels when the wing bolt tightens the wing against the fuselage sides. Fuselage sides are usually pretty narrow.
I've been considering placing a scrap balsa filler in the rear of my Tiger60 where the bolt block is in the attached picture. The wing shows compression lines where those narrow fuselage sides press against the top center of the wing. Then just the sides won't be where all the force is on the wing.