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post #10 of Old 04-02-2019 Thread Starter
Teamstone
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Re: Generic Polars

Quote:
Originally Posted by colemj View Post
Not really. Actually, published polars for most boats will never be reached because they are calculated using very optimistic data.

However, it is easy to make your own polars if you can get boat data into a computer. OpenCPN has a polar plugin where you simply sail the boat and it collects polar data and makes it into a plot. There are phone/tablet apps that do the same.

Or just go sailing and take some general notes about wind, speed, angle, etc - then make some tuning/rigging/trim changes and see how that effects things in general.

One usually only is interested in polars for upwind work to determine optimum VMG, and most people find they understand this intuitively after sailing their boat for a while.

Mark
Thought of that but the one thing I don't have is wind instrumentation.
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