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Eddie wrote

> you usually have a "polar diagram" for the vessel, giving you a
> speed through water for each wind angle. With this you can optimize
> for maximum speed towards destination. This is what tactics software
> does.
>
> The hard part is getting this polar diagram correct for the boat
> and crew in question to optain useful results.

Thanks.  Understand the above.  Without a computer, sensors, and software it
falls into the category of traditional navigation ;-)

Even with polar diagrams it looks like a case of doing multiple "what ifs"
to determine a course that would allow one to sail along the intended track
(that being a straight line from departure to destination if possible) after
compensating for set, drift and leeway.

As a sidebar, I 42ed the question so sorry for any misinterpretations. The
goal is to sail a straight line along the intended track, and I should have
stated "...to solve similar problems?" as opposed to "...to solve this
problem?"

Bill

   

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