Jensen 'Das Ugly Stik' Laser-cut Rib Set. In the May-June 1966 issue of Grid Leaks detailed. There’s a lot of balsa in them thar ribs! 38 Wing Ribs laser-cut in hand-selected 3.0mm balsa. Various 6mm ribs are duplicated (laminated) from 3mm balsa for ease of cutting and strength.
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