Don Monnot wrote:
I'm also interested in the "efficiency" concept. "How fast in how much wind?" is a great question. I know (GPS) I've hit 20 mph in conditions that don't generate any whitecaps on my local lake. Typically whitecaps start to form in about 12 mph of wind. This was with a 15m Varial X Race on a Sector 60 V1. That seems pretty efficient, probably around twice the wind speed. I'm also curious how the efficiency curve drops off with increasing wind speed. I'm guessing that around 10 mph of wind speed is where you'll see the best efficiency, but I don't know. It would be fun to get some hard data on it (I'm kinda a math/science geek that way).
Pretty

that you also like "efficiency concept"
Can we go 2.32 times the wind speed on the water under kite?
If so.... at what wind speed can we do that? What is the optimum efficiency wind speed for kites?
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