Expedition Navigation Software 
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Optimal route only shows rhumb line
No matter what I do, optimal routing solution always follows route marks exactly, even if it means sailing apparent wind angles below 10. I have checked boat polars which look accurate.
I have been going through the North U 101 Webinar, so don't know if I changed something while doing that?
I haven't been able to find answer by searching forum.
Thanks
- Nick
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Re: Optimal route only shows rhumb line
Have you selected 'Optimise along great circle' ?
- minerm
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- Registered: 10/05/2019
- Posts: 2
Re: Optimal route only shows rhumb line
Yes, that was selected. Back to normal now that it is off- thanks.
Why does that happen with great circle route selected?
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Thread Starter- Nick
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Re: Optimal route only shows rhumb line
It is there in case you want to sail along the great circle. A delivery motor-sailing would be one scenario.
- DuncanR
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- From: Up and down East Coast Aus
- Registered: 9/16/2015
- Posts: 471
Re: Optimal route only shows rhumb line
Start with the really obvious - once you know - have you selected passing sides for your marks, or are they all set to "Sail to mark", which is the default.