Guest skeatesy Posted October 13, 2016 Posted October 13, 2016 i believe with ski battons convex airfoils can be constructed on hangliders so the battons dont spin in their pockets under pressure with tabs and studs and a ski batton on top surface as well for added security at high speed untitledcsxdfffbluett — Postimage.org https://www.youtube.com/watch?v=kksXbnd3-nU
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