Expedition Navigation Software » Route optimization restricted to certain wind angles

Calibrate9008 · 6/12/2023 5:48 am

Hi there,
I'm relatively new to the software and recently finished a delivery using it as our primary routing software. One feature I assume it would be capable of but could not locate was running a route while giving it a lower and upper limit on TWA I'd like to experience during the voyage. For example, could I specify to it that over the course I input (or just between two marks) that I want to sail at no greater than 120 TWA and no less than 90 TWA?
Thanks!

sparky · 6/12/2023 10:32 am

The output of the routing isn't strictly a list of sailing angles or directions.

There are sections of the routing (dashes on the charts) where you are expected to be tacking or gybing along a line to make the best VMG given e conditions.

Calibrate9008 · 6/15/2023 1:04 pm

Thanks for the info Sparky! I'm aware of that but I was wondering if you could give a preferred wind angle / restrict it to within certain TWAs when able. The idea being that along a line between two points where wind is expected to shift significantly there is a route that you could theoretically spend the majority of your time on with a wind angle close to XXX degrees true.

barne · 6/23/2023 6:08 am

If you just adjust your polars (temporary) with very low boatspeed outside the desired wind angle range, I guess you should be able to get what you're looking for.

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6/12/2023 5:48 am #1

Route optimization restricted to certain wind angles

6/12/2023 10:32 am #2

Re: Route optimization restricted to certain wind angles

6/15/2023 1:04 pm #3

Re: Route optimization restricted to certain wind angles

6/23/2023 6:08 am #4

Re: Route optimization restricted to certain wind angles

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