Baitshack,

I agree with AQ500.

Harry Higley in his book, "Building Bipes", page 25 states "if you ever buy a kit that does not provide shear webs, add them yourself - no exception."

The shear webs should butt up against the ribs to eliminate the shearing tendency of where spars connect to the ribs. Shear webs will also reduce your up and down flexing and give the wing compressive strength.

Harry goes on to say, The webs and leading edge planking form a "D" shaped tube. The shear webs comprise an important element of the "D" tube. Without them, the planking forms a much less rigid "C" shape.

I have added shear webs to my Sig Smith Mini-plane and they have made a big difference.


You did fine.