Hey Fellas, I'm trying to discover a wing. All I have is it had twin aluminium spars, stacked one above the other with a bracing in between. Aluminium ribs, fiberglass leading edge. was used on a ultralight ( I think ) built in the 70's. The owner had financial difficulties & business was sold to another party. I am told by a builder who had them on a Pervis JN-1 it was a awesome wing. Anyone have a idea??