Tom Spear appears to be a leading hydrofoil expert when it comes to sailboats, and is the developer of the H105 foil profile that is widely used on Moth foils.windfreak74 wrote:i weigh 68kg
how do you calculate optimum área?
There is an interesting note at the end where he says that you can adjust the spacing so the aft foil surfs the wave produced by the front foil.heemskn wrote:Tom Spear appears to be a leading hydrofoil expert when it comes to sailboats, and is the developer of the H105 foil profile that is widely used on Moth foils.windfreak74 wrote:i weigh 68kg
how do you calculate optimum área?
In this post on the boat designer forum he summarizes some of the formulas used to calculate foil size: http://www.boatdesign.net/forums/boat-d ... 13243.html.
To use these formulas to optimize a kite foil we would have to know how much power our kites can produce. Here is my guesstimate of power during a straight line fast run: kite pulls with 220N (about 50 lbs) under a 30 degree angle to the direction of travel (cos 30) while at a speed of 20 mph (9 m/s) = 220 N * 0.866 * 9 m/s = 1.7 kW. Did I get that right? Maybe I am too optimistic about the angle of the kite force during a fast upwind tack.
Users browsing this forum: FunOnTheWater, Tomlutz and 162 guests