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 Post subject: Hobie Island Sail Trim
PostPosted: Wed Mar 30, 2016 3:37 pm 
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Location: Brisbane, Australia
Hi everyone,
I have written a guide covering sail trim and how to use the tell tales for both the Tandem and Adventure Islands. Feel free to have a read. Good for people new to sailing.

http://www.seqic.com.au/general-information/hobie-island-sail-trim/

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PostPosted: Wed Mar 30, 2016 3:46 pm 
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Good read.

Sent from my SPH-L720T using Tapatalk

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PostPosted: Thu Mar 31, 2016 11:06 am 
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Good article for the novice, which is what I am. Is there any chance it can be down loaded as a PDF and fit on two sheets of paper. Most the people I go out with are newbies and I could make a laminated card with this info on it would be nice.


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PostPosted: Thu Mar 31, 2016 4:21 pm 
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Location: Forster, NSW, Australia
Alastair, can you give more information regarding the dead air you show directly downwind? I have never experienced this.

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PostPosted: Thu Mar 31, 2016 7:07 pm 
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tonystott wrote:
Alastair, can you give more information regarding the dead air you show directly downwind? I have never experienced this.


Dead area, not dead air. Pointing out that sailing just off one side of the wind is better.

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PostPosted: Thu Mar 31, 2016 8:33 pm 
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Location: Brisbane, Australia
Dead Area Downwind - This refers to when you are sailing dead downwind as explained in the downwind section of the sailing guide. It simply means that when sailing at this angle the wind is not flowing over the sail. You are just being pushed along. You will notice if sailing dead downwind it feels like there is no wind at all, this is because you are moving at the same speed as the wind. Gets hot in summer too.

This is very slow as you are not creating any aerodynamic forces on the sail other than to be pushed. By sailing slightly away from dead downwind you can increase the air flow over the sail and there fore increase your speed.

It is not going to make a huge amount of difference in the Islands but it is slightly faster. this is where you need the tweakers or barber haulers to get he sail right out there.

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PostPosted: Thu Mar 31, 2016 8:35 pm 
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JimE wrote:
Good article for the novice, which is what I am. Is there any chance it can be down loaded as a PDF and fit on two sheets of paper. Most the people I go out with are newbies and I could make a laminated card with this info on it would be nice.


Yes I will create a PDF version for you guys to download, but don't get caught up in it too much, the best thing to do is to master sailing upwind keeping the tell tales vowing backwards by steering the boat. Learn or practise one thing at a time and you will master it.

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PostPosted: Fri Apr 01, 2016 12:55 am 
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Location: Brisbane, Australia
You can now print this page out. I have added more info.
http://www.seqic.com.au/general-information/hobie-island-sail-trim/

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PostPosted: Fri Apr 01, 2016 1:08 am 
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Location: Forster, NSW, Australia
Hogman wrote:
tonystott wrote:
Alastair, can you give more information regarding the dead air you show directly downwind? I have never experienced this.


Dead area, not dead air. Pointing out that sailing just off one side of the wind is better.

And it is certainly misleading to call the areas at the top and bottom of the diagram the same. I disagree that directly downwind is any kind of "dead air" except in a dead calm.

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PostPosted: Fri Apr 01, 2016 5:40 am 
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Location: Chalfont Pa
Well written, and nicely done. Some comment about when and why adjusting sail trim is necessary would be good.
Wind is not a constant in direction or velocity. And apparent wind changes as our speed increases. In Hobie 16 talk
it was "shifting gears", which was much more necessary in those boats as speed increased. Still needed in our boats though.

This is the stuff that makes sailing so much fun, for me. With the constant changes in force one must watch everything all the time. Never gets boring and one never gets everything perfect!


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PostPosted: Fri Apr 01, 2016 10:10 am 
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Location: San Antonio, TX
Great article, this will be useful to a lot of new people. It should be a sticky at the top of the forum.

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Last edited by chadbach on Fri Apr 01, 2016 12:47 pm, edited 1 time in total.

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PostPosted: Fri Apr 01, 2016 11:30 am 
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The new sailors in the bunch will appreciate you putting so much condensed information in one well organized article. Thanks!

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Last edited by vetgam on Tue Apr 05, 2016 5:45 pm, edited 1 time in total.

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PostPosted: Sun Apr 03, 2016 4:07 pm 
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Location: Brisbane, Australia
tonystott wrote:
Hogman wrote:
tonystott wrote:
Alastair, can you give more information regarding the dead air you show directly downwind? I have never experienced this.


Dead area, not dead air. Pointing out that sailing just off one side of the wind is better.

And it is certainly misleading to call the areas at the top and bottom of the diagram the same. I disagree that directly downwind is any kind of "dead air" except in a dead calm.



It's a basic diagram from Hobie themselves. Why do you pull out the insignificant detail when the bigger picture is how to sail your boat better. Thats all we are talking about here. ???

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PostPosted: Mon Apr 04, 2016 3:53 pm 
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vetgam wrote:
The new sailors in the bunch will appriciate you putting so much condensed information in one well organized article. Thanks!


Tony see this, this is nice, no BS just a thank you for the effort I put in to help others. Positive attitude makes it worth it.

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PostPosted: Mon Apr 04, 2016 5:10 pm 
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Location: Kailua 96734
Good article AK. Thanks.

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