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 Post subject: Recut that old jib!
PostPosted: Thu Apr 17, 2014 11:53 pm 
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Joined: Sat Jan 04, 2014 6:55 pm
Posts: 7
Location: San Francisco CA
I've got an old sail set, and after raking the mast back, it don't fit no mo. Are there any official plans available from hobie that I could use to cut my jib to make it fit better? I've got the machine, has anyone cut their sail themselves?

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1978 H16 "Frank" we love him cuz he's different
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 Post subject: Re: Recut that old jib!
PostPosted: Mon Apr 21, 2014 7:09 am 
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Joined: Fri Jun 17, 2011 12:26 pm
Posts: 371
Location: Harsens Island, Michigan
I am surprised that there were no responses to this question.

Are there differences to the Jib? I guess I have to assume that there are. Someone said that you can use a new Jib on an old boat but that an old jib doesn't fit as well on a new boat, so i assume that has to do with the cut of the jib, eh?

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 Post subject: Re: Recut that old jib!
PostPosted: Mon Apr 21, 2014 9:40 am 
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Joined: Mon Jul 14, 2003 7:11 pm
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Location: Detroit, MI
The reason there's no reply is that there are no official plans from Hobie on re-cutting an old jib into a new one.

It can be done, but the end result is a recreational jib, not a competitive one. It will *work*, but the cost to do it will be bordering on that of a new jib.

In 2000, the foot was shortened slightly to allow for more mast rake. The luff was increased slightly to make up the area difference. I've never seen an "old" jib overlaid on a "new" one, so I can't tell you how much they've changed.

You could just shorten the clew on an old sail, but most sail makers will just tell you to get a new one.

It's a home project if you've got a sewing machine capable of it.


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 Post subject: Re: Recut that old jib!
PostPosted: Mon Apr 21, 2014 11:06 am 
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Joined: Sat Oct 29, 2011 4:27 pm
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Location: Central Oregon
Ill snap a couple pics of 1980 vs 2010 euro jibs when I get em out. Could provide measurements as well.

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 Post subject: Re: Recut that old jib!
PostPosted: Wed Apr 23, 2014 11:16 am 
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Joined: Sat Jan 04, 2014 6:55 pm
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Location: San Francisco CA
Thanks Hobiesrock, would like to see those photos. I can't imagine that cutting a little off the clew is going to make it less competitive than the inefficiency of a bad cut. We did our first regatta recently with the original cut and the luff of the jib was backwinding upwind. Even with a little less sail area I'm sure it would be more efficient. I mean its really about the flow over the main, the jib isn't doing much else right? I'd like to buy a new jib, i just don't really have the money. My jib is in good shape, not used much, still pretty stiff, just wrong cut.

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 Post subject: Re: Recut that old jib!
PostPosted: Wed Apr 23, 2014 12:34 pm 
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Joined: Sat Oct 29, 2011 4:27 pm
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Location: Central Oregon
It will be a little bit as its not quite sailing season here yet...judging by the snow on the ground this morning.
If your in a hurry maybe someone from somewhere warm can do it? :mrgreen:

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 Post subject: Re: Recut that old jib!
PostPosted: Thu Apr 24, 2014 6:43 am 
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Joined: Fri Jun 17, 2011 12:26 pm
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Location: Harsens Island, Michigan
I just realized that I now have both, so could probably take a picture when I am out at the cottage this weekend unless someone else already has one.

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 Post subject: Re: Recut that old jib!
PostPosted: Thu Apr 24, 2014 8:52 am 
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Joined: Wed May 05, 2010 8:28 am
Posts: 708
Location: Clinton Lake, KS
I can grab a picture tomorrow also of the Euro Jib overlayed on an old Keoke jib...


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 Post subject: Re: Recut that old jib!
PostPosted: Fri Apr 25, 2014 9:25 pm 
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Joined: Wed May 05, 2010 8:28 am
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Location: Clinton Lake, KS
I just might have to cut the old sail in this picture to use when it is honking and I shouldn't be sailing anyway... :twisted:

The Keoke sail is old, and to say the least, not as crisp as it once was. Same for the turquoise jib. It is 04(ish) vintage, well used. Note the turquoise jib has battens in and tensioned, the keoke does not..

Aligned at luff with batten pockets also aligned..

Image

Image


At the head of the jib, note the hank is roughly the same distance from top of sail on each sail. This seems to be the only spot this 'new' sail is actually larger.

Image

Now.. Sail aligned at tack perfectly...

Image

all batten pockets align as such..

Image

Which looks more like this at the foot..

Image


I'll compare to Euro jib sometime over the weekend..


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 Post subject: Re: Recut that old jib!
PostPosted: Sun May 04, 2014 6:21 pm 
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Location: San Francisco CA
Ronholm you're the man!
That's very interesting. It looks like the idea that area taken from the foot was added to the luff, is not the case here. It looks like the area was simple removed from the foot!

Did you happen to get any measurements of the removed area? From this picture of the foot I'd guess the vertical distance cut off to be about 8"?
Image

Im guessing i can just drill out the rivets on the clew and reattach to new edge. Looks pretty simple.

Thanks very much for the info!

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 Post subject: Re: Recut that old jib!
PostPosted: Sun May 04, 2014 7:02 pm 
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Joined: Wed May 05, 2010 8:28 am
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Location: Clinton Lake, KS
Yeah.. If you moved the clew up a clew length I imagine you would be most of the way there. I suspect though there are small changes in the draft of the sail (ect) that you aren't going to fix by doing just that.

That Keoke jib is pretty blown out though, and sails can vary a bit based on the nature of how they are constructed.. So don't take my pictures as God only honest truth.


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 Post subject: Re: Recut that old jib!
PostPosted: Tue May 06, 2014 3:54 am 
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Joined: Sun Sep 20, 2009 4:00 pm
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Location: Charlottesville, VA
sfvanman wrote:
...It looks like the idea that area taken from the foot was added to the luff, is not the case here. It looks like the area was simple removed from the foot!


The luff is longer. The tacks are at the same point, and the new head is higher, as far as I can tell.

It might be easier to see the difference with the old sail atop the new, and the leeches lined up (they seem to be about the same length).

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