Automated Main Sail?? - SailNet Community
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post #1 of 10 Old 06-07-2018 Thread Starter
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Question Automated Main Sail??

Does anyone know if this technology has ever been deployed? It was advertised years ago as Jeanneau/Harkan tech system but I can't find anything on it or like it. It gives single handers the ability to put sail trimming on autopilot from the helm.
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post #2 of 10 Old 06-07-2018
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Re: Automated Main Sail??

I thought most modern autopilots will let you set a heading relative to wind direction as well as a compass heading.
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post #3 of 10 Old 06-07-2018
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Re: Automated Main Sail??

I think what he is talking about is a system that would hold a compass heading AND adjust sail trim to that heading.

http://www.yachtingworld.com/yachts-...d-harken-69323

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post #4 of 10 Old 06-07-2018 Thread Starter
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Re: Automated Main Sail??

Thank you Barquito, I was talking about the main sail trim system.

Manual trim is good but wondered how far technology has advanced in the digital age. Sounds like this is still a pipe dream. Jeanneau was first to discuss it in 2015.
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post #5 of 10 Old 06-07-2018
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Re: Automated Main Sail??

The America's Cup boats had some kind of system that had target points in the mainsail and used data wind and boat speed data to record the position of the points on the sail at prior best settings. This was then overlaid on a live video image of the sail so the trimmer could adjust the shape to match with the points changing as the data changed. I believe that there was an effort to automate sail trim using the essentially a similar system. But I have not heard anything about it in a while.

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post #6 of 10 Old 06-07-2018
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Re: Automated Main Sail??

Isn't that the whole point of an autopilot? It frees up the helmsman or solo sailor to do other jobs.
Sounds pretty darn dangerous to me. Kinda like having an electric winch with nobody tending it. No thanks, I'll stick to being a hands-on sailor.
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post #7 of 10 Old 06-08-2018
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Re: Automated Main Sail??

I think this will only appeal to potential boat buyers that don't feel they know how to trim a sail properly. Just like the docking system was thought to be desirable.

Racers, who actually need the last few tenths of boat speed, from efficient trim, won't be allowed to use it. Cruisers eventually figure out how to relax and just get as close as practical, for the amount of energy and time they want to expend.

I have a buddy who is wound way too tight, when it comes to sail trim. He's constantly, I mean constantly, tweaking. I'm honestly convinced that his second tweak is directly the result of the first one not working. If he left it alone, he'd go faster over the length of the leg.
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post #8 of 10 Old 06-08-2018
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Re: Automated Main Sail??

Racers may find automated sail trim better than they can do manually.

My autopilot steers better than me. (except for anticipating wing gusts seen on the water ahead)
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post #9 of 10 Old 06-08-2018 Thread Starter
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Re: Automated Main Sail??

Like self driving cars, not that they work yet, but interesting concept and about to rollout. I'd much rather try it out at sea than on busy highways.

Added to what's already here on sailboats it seems like the next step. I could see Ellison do something here if he weren't too busy racing so maybe Elon Musk / Tesla instead.

Just trying to stay up on latest digitization in sailing. Thanks!
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post #10 of 10 Old 06-08-2018
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Re: Automated Main Sail??

Iirc...this was/is for wings...vertical....not sails.
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