Kitefoiler Tow Test – Feb 2
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Another tow test today after Joe and Damon repaired and modified the J-foils. We experimented with different crew weights and different positions for that weight, at various speeds. The adjustments seemed effective–the boat was stable under all parameters.
We put different GPS and tow tension sensors on both the Kitefoiler and Protector this time so that we could compare several sensor options. The load cells on each boat were in general agreement. The GPS receivers often reported different speeds, but this reflects the relative motion of the two boats. The peaks in line tension appear when the speed of the Kitefoiler drops enough for it to drop down from the foils. The segment in the attached graph shows the boats’ measured force and load as the Kitefoiler is towed across the bay most of the way from Alameda to San Francisco.
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