Rib Stitching Using The Modified Seine Knot.

Rib Stitching at Corman Air Park: How to do it. Includes the first double wrap locked square knot. The Modified Seine Knot and the final locked modified Seine Knot. The modified Seine knot is the only FAA approved rib stitch knot, if the original knot on your aircraft is not known. It is the only one we have found that doesn't slip. It is not difficult to learn and I would recomend it for all Ragwings. Oh Yes, a loonie is about 1 1/8 inches or 30 mm. in diameter :)