buzzypeterson
Well-Known Member
Hey guys I am building a double eagle and looking at the spar the plans call for a ladder construction with plywood. I know that many planes use a spar that is much thicker. I asked lenard the designer and he said not to use a solid spar because of weight.
My question is what is the strongest spar that could be put in this thing? Is there any reason why I couldn't use a solid spar, I know it's heavier but what about strength? The double eagle spar seems mighty weak it's maybe a 1" x 2" that runs the length of the spar on the top and bottom. Then everywhere there is a rib there is a 1x2" or so that runs vertical. Then plywood over it.
How are other spars constructed?
My question is what is the strongest spar that could be put in this thing? Is there any reason why I couldn't use a solid spar, I know it's heavier but what about strength? The double eagle spar seems mighty weak it's maybe a 1" x 2" that runs the length of the spar on the top and bottom. Then everywhere there is a rib there is a 1x2" or so that runs vertical. Then plywood over it.
How are other spars constructed?
