I've been thinking a lot about this lately. I totally understand the concept. I can see it operating every time I go sailing. My question is about chasing the tell tails when heading upwind. You've sheeted in as hard as you can, and as you build speed you start to bear away, bear away some more, and some more…to keep the tell tales streaming and the sail efficiently full with good angle of attack, until you are reaching back and forth with the true wind at 90 degrees to the boat (ie. not making upwind progress at all). This is fine if recreational sailing (as I've been doing) and just wanting to go fast. But if I get back into racing, do I understand correctly that pointing as high as you can to the upwind mark means ignoring the tell tales (which will suggest that you are luffing, which you are, relative to the changing apparent wind) and reading the wind on the water instead?
I copied this from a bother forum thread somewhere, which puts it well:
"… if you are sailing upwind on a triangle course, if you just sail to the apparent wind you can end up chasing it into a big speed building, bearing away curve that keeps the tell tales flowing, but isn't doing your VMG any good. Same thing downwind ( with a spin especially) , relating to the true wind v. your speed build is key for VMG, and deciding if it's a velocity header".
My thinking is specific to efficient VMG upwind during a race scenario.
Thanks
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Tom
Hobie Getaway, Nacra 5.5, Hobie Tiger
Wish list: A-cat classic, F16 Viper!
Northern California
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