Pedro Marcos wrote: ↑Mon Jun 19, 2017 10:18 pmShouldnt a short mast 90cm be better for racing in flat water then the longer 110cm masts every races uses? If yes, why they use the 110 then?
Thats what i was going to say next, then why 110 and not 120 ? Also, having less mast on the water in light winds (less drag) doesnt allow you to go faster? Or its this benefit less, then the upwind angle gained by having a bigger one?Mossy 757 wrote: ↑Mon Jun 19, 2017 10:55 pmThe lift vector of the foil pushes the rider upwind the further over they're leaned, so like has been said already, you want more strut not less so that you can have the foil pushing you "upwind" in addition to forward.
Also, sailing with power is all about a righting moment. Having a longer lever (the strut) gives you a longer moment arm so you're able to pull backwards on the kite harder and use more of your weight to hold down power. In an ideal world where struts are made with weightless, drag-free magic-carbon and have perfect stiffness, you'd want a really long strut so you could hike way the hell out and pull against the kite with a longer torque arm.
Mossy 757 wrote: ↑Tue Jun 20, 2017 1:43 pmYeah, stiffness of carbon like this decreases exponentially as length increases, so making your mast as short as possible (given all the other goals) is a good thing for stiffness. My example was the theoretically "perfect/inflexible" carbon that makes a feather-light mast that never bends or breaks.
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