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Forum Lockedsail cover/lazy jacks

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Ernst View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ernst Quote  Post ReplyReply Direct Link To This Post Posted: 10 August 2005 at 11:35am
Originally posted by MattGrant MattGrant wrote:

Be sure to let me know how it goes! You are correct, the nice thing about DIY is no matter what you try (fail or not) you always learn something valuable in the process. Thanks, Matt


Well, there is a little problem.

I actually have two mainsails. The one I use now is an old one I got cheaply but that still does its job. It has slugs on the foot.

It turns out however that my 'main' mainsail has a boltrope! (I haven't used it all season so I forgot).

So, here is my question: I really like your idea of using slugs for the stackpack, alternating with those of the sail but I obviously can't do it with a boltrope. How difficult is it to add slugs to the foot of a mainsail and use them instead of the boltrope?

[I don't know if this question should be posted in a different forum]

Thank you!

--Ernst
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Ernst View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ernst Quote  Post ReplyReply Direct Link To This Post Posted: 10 August 2005 at 11:52am
Originally posted by Ernst Ernst wrote:

Originally posted by MattGrant MattGrant wrote:

Be sure to let me know how it goes! You are correct, the nice thing about DIY is no matter what you try (fail or not) you always learn something valuable in the process. Thanks, Matt


Well, there is a little problem.

I actually have two mainsails. The one I use now is an old one I got cheaply but that still does its job. It has slugs on the foot.

It turns out however that my 'main' mainsail has a boltrope! (I haven't used it all season so I forgot).

So, here is my question: I really like your idea of using slugs for the stackpack, alternating with those of the sail but I obviously can't do it with a boltrope. How difficult is it to add slugs to the foot of a mainsail and use them instead of the boltrope?

[I don't know if this question should be posted in a different forum]

Thank you!

--Ernst


Oh, I might add that there is supposedly a chapter on "Slug and slide installation along the luff of a mainsail" in the 'helpful tips' section of the Sailrite site which may be germane to this question. However, it is broken ("HTTP/1.1 404 Object Not Found")

--Ernst
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MattGrant View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MattGrant Quote  Post ReplyReply Direct Link To This Post Posted: 10 August 2005 at 8:24pm

You are correct. The article link that is broken would be very helpful. I will make sure it gets fixed by the weekend.

In general it is quite easy to add slugs or slides to the foot edge of a sail. You will need to press grommets along the edge just inside the boltrope. Then you simply use shackles to attach the slugs/slides. Spacing depends upon the outhaul type. But in general they should be equally spaced (about every 18" to 24" apart).

Thanks, Matt

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ernst Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2005 at 5:24pm
Originally posted by MattGrant MattGrant wrote:

You are correct. The article link that is broken would be very helpful. I will make sure it gets fixed by the weekend.


In general it is quite easy to add slugs or slides to the foot edge of a sail. You will need to press grommets along the edge just inside the boltrope. Then you simply use shackles to attach the slugs/slides. Spacing depends upon the outhaul type. But in general they should be equally spaced (about every 18" to 24" apart).


Thanks, Matt



That sounds easy enough. I look forward for reading the article. Thanks a lot!

--Ernst
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulnsue Quote  Post ReplyReply Direct Link To This Post Posted: 23 August 2005 at 12:30am
I've been following this topic with interest because I'm constructing a sailcover/lazyjack combination using the instructions from the website.  I just returned from test fitting the cover and I think its going to be great but I have a couple of questions.

First off, I have the boltrope running through the channel in my boom - its perfect and looks really slick.  The clew is tied to a slug - that is creating a little heartburn since I'm not sure quite how to neatly enclose that.  I think I'll have to take out 2" of boltrope to accommodate the slug there.  There is a line for the outhaul that runs aft from the clew to a block on the end of the boom - that will have to find its way out too even when the cover is all zipped up. 

Then the reefing lines create a little bit of a problem.  Ours is looped and tied around the boom forward of a cheek block that is about 6" from the aft end of the boom. My husband says that that loop actually slides along the boom a few inches when we reef (I'm usually too busy freaking out to notice!) so I think I need to have an opening parallel to the boom for that too.

I also think I want to be able to pass the reefing ties through the cover (through grommets?) so I can tie them around the boom when we reef.  Did I read somewhere that this isn't necessary?

I'm still struggling with the best way to manage things at the mast - it seems like the boltrope/track combination wouldn't work so well because the cover wouldn't be able to open enough to readily accept the sail when it's being dropped. What about some adjustable straps going around the mast?  My husband suggested including vertical battens on the ends so that the cover would stay up at that end and pull evenly when the straps were cinched up.  What do you think? 
Sue Means
Aberdeen, WA
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MattGrant View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MattGrant Quote  Post ReplyReply Direct Link To This Post Posted: 23 August 2005 at 7:20pm

Hi Sue,

Leaving the back end open is normal which will allow for the outhaul of the mainsail. It is also not necessary to run the rope at the foot of the cover all the way to the end of the boom. Stopping short of the clew slug is fine. There will be a little loose material in this area but if you support the top of the cover with battens it will look fine.

An opening at the front of the cover is a good idea to get the the reef hooks or attach a loop.

Typically on this type of cover you do not worry about reef tie downs. Simply applying tension fore and aft at the reef will control the loose fabric in the cover. Otherwise you grommet approach is workable with some careful planning.

The opening at the mast can be quite narrow as the sail is attached to the mast via slugs/slides and will come down in a controlled manner. An adjustable strap would work instead of the track if desired.

Best Regards, Matt

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Post Options Post Options   Thanks (0) Thanks(0)   Quote memelet Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2006 at 11:38pm
(Not who I am asking, but...) Are there any plans to finish the "beta" stackpack instructions?

thanks!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carib2008 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2006 at 11:24am
Last summer in a matter of four days I had to put together a stack pack type cover for our mainsail.

I made a few mistakes. I did not want to sew the cover to the foot of the sail like the STACK PACK does. So I used velcro straps sewn to the bottom of the cover and slipped them under the sail between the slugs.  This seemed to do the trick.

Off to Maine we went. Sail cover was billowing in the wind as we sailed or motored. There was too much air getting behind the cover from the fact that it was not attached to the foot of the sail.  So I needed to correct this.

For interest , I used some battens that were much too flimsy to give the pack its straight line from clue to the mast. 

Also the forward part of the pack was not finished. I planned to bring it around the mast and velcro it together on the main halyard side, for access purposes.  So while in Maine this part again was just blowing in the breeze.

I managed to get a real close look at a real  STACK PACK and got some great ideas..


First I was told that some round pvc pipes would do for the battens, but I need to put some kind of protection inside the sleeve that holds the battens as they do flip around and had already caused wear thru the sleeve at the leading edge.

Also one needs to line the part that goes around the mast as well with some protections from winches , halyards etc.

Now the big thing is the membrane that the real STACK PACK  uses to keep the pack from doing all that flapping in the wind when the sail is up...  I am going to attach the pack to the foot of the main sail.
I accidentally found a guy that used to install  STACK PACKS and he suggested the use of soft tape for the membrane.  I am not familiar with that material .  Now here is the tricky part...... IT is about  the same dimension in heighth as the pack and is sewn to the top of the pack and also to the main sail.... you need to lay the pack and sail down and then attach the membrane to the top of the pack....then spread the membrane up the sail.....and attach it where it hits the sail....keep in mind that the membrane falls inside the pack when the sail is lowered and therefore it MUST   be  high enough to let the sail fall all the way to the bottom......of the pack.....also the membrane will lay flat against the sail when it is being used....so the membrane must have UV ....the real STACK PACK  had a piece of velcro at the forward and aft edge to keep it attached to the sail......owners had this pack for many years and were not ever aware of the velcro so I am not sure how important it is....I assume just to keep the membrane flat against the sail by not letting any air in between it.....

Does this make sense?

This pack is then attached to the lazy jacks with some straps and SS rings.....

I put a riri zipper in top and yes you do need it a few feet longer at the clew.......I cut mine so will have to live with it.....I also made one side of the zipper flap much larger than the other to hopefully add some sun protection to the zipper....the zipper actually does zip up after a few bangs with the boat hook to get the main sail to fall into the pack.....

This is a much safer solution for us.....we have a very high boom ...way beyond our reach and this is over a center cockpit boat with a bimini ....so trying to flake a mainsail with two people in any kind of sea conditions was very very dangerous....as at any moment one of use could have been pitched over the side......and in the Bay of Fundy, the water is 43 degrees....

The system is not perfect yet but sure beats the alternative.....I am sure as time goes on I will be making constant changes and repairs to the system.

However with the Sailrite machine , I can do it....

Hope this is not too confusing.....

karin


As of yet I have not figured out the reefing line situation........that will take some time....


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ernst Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2006 at 10:15am

    Hi Carib2008,

thanks for the tips. I have posted here earlier but it looks it will still take me some time until I can finally do the first stitch on the DIY stackpack. But at least I can learn from others.

I have actually wondered myself what this 'membrane' thing could be the Doyle people talk about. So it is some fabric attached to the sail that pulls the canvas close to the sail when it is raised? According to your description, I would expect the membrane to come out of the stackpack and be visible when the sail is raised, by as much as the height of the stackpack. Is that correct?

Last year, we chartered a boat that had a genuine Doyle stackpack (which gave me the idea to build one in the first place) but I don't recall seeing something like this.

Does someone at Sailrite know what this 'soft tape' material could be?

Thanks,
--Ernst
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carib2008 Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2006 at 7:57pm
Ernst,

 You are correct in thinking the membrane is visible when the sail is up. If you were on a boat in the Virgin Islands you sure did have a Doyle Stack Pack however they seem to use the earlier version there, as I am sure it is much less expensive.

There is an installation manual on their website to give you some help.  It shows what the system looks like and how it is installed.

If you need some more ideas please email me.

I am thinking if I ever make another one, I pretty well have it figured out........I have to work around what I made last year, and since I have seen the real thing I know what to do now...pretty well anyway.

carib2008


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