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Cut down a spinnaker?

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c25sailor
Past Commodore

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USA
138 Posts

Initially Posted - 03/25/2002 : 13:16:03

OK, DQOTD:

I just HAD to pick up what I thought was a great deal on a used spinnaker. Problem is, it's huge! I have a call in to North Sails, but can you guys tell me:

What are the dimensions for a spinnaker on a tall rig C25?
Is it possible to cut one down (economically)? I'm thinking either go in proportionately, but am not sure what the heck that does to the original shape, etc. Like, would that make it unstable to fly?

An alternative might be to use the material plus plans to make a chute or cruising spinnaker. Or build a sun shade...

OK, it was on impulse, but the $$ did go to charity. BTW, the luff dimensions are 45' and foot is 25'. <img src=icon_smile_blush.gif border=0 align=middle>

Ed Jakubas
Lucyna II
1982 TR/SK #2801
<img src="http://home.attbi.com/~c25sailor/images/RailwashProfile.jpg" border=0>

Edited by - on

Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 03/25/2002 : 16:57:44

Ed,

First, there is not such thing as a DTQOD, just DAOTD.

Cutting it down, as with most sails isn't exactly an easy thing to do. Especially if it is a Tri-Radial design. Each panel is proportional to the others.

If you want to stick with the our one design rules (although not too many C-25's race with a kite, none at last years nationals) The Luff for a tall rig is 31' 1" and the foot is 18' 10 3/4". Cutting it down would be taking cutting all three edges. If you aren't worried about the racing aspect, and I wouldn't be, then you may get by with just taking a little out of the luff. Since the chute fills in front of the boat you could probably get by with a little more than the mast height, but not too much. Maybe just removing a few panels off the bottom might work, especially since you are dealing with about 14 feet, you would have to reinforce both clews though. You would also need a longer Spinaker pole. Don't forget, you would have to be extremely selective about the wind your flying it in. With that much sail up, your dealing with an enormous amount of area and a good puff could take you right over!!!

Your option of a cruising spinaker/genaker may be the best bet, but I can't envision what type of cuts would need to be made. We flew a tri-Radial like a genaker for a year. (see photo in signature below) It worked quite well..

I would suggest calling a number of local lofts and ask their recommendations. Most lofts shy away from cutting down sails, for both profit and safety reasons, but some of them may offer you suggestions that you or I wouldn't think of.

Lastly, if you find out what type of boat its from, find their website, sell it and buy yourself a brand new one?
dw

Duane Wolff
"The Flying Wasp"
C-25, #401 std,sk
Chief Measurer C-25/250 national Org.
<img src="http://im1.shutterfly.com/procserv/47b2dc20b3127cce9cd2f45b211a0000004010" border=0>

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Rick Heaverly 86 C25 5382
Navigator

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Belize
206 Posts

Response Posted - 03/26/2002 : 06:06:50

Ed,

Check with Minneys, website is Minneysyachtsurplus.com. They have a huge inventory of sails. They might trade you with something that would fit much better. And then you wouldn't have any costs with your local sailmaker.

Rick Heaverly

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c25sailor
Past Commodore

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USA
138 Posts

Response Posted - 03/26/2002 : 09:15:44

Thanks for the feedback. Now that I have the desired dimensions, I can keep an eye out for a deal. As soon as the weather breaks I'll take some pics of this sail and put it on market.

Man, am I getting anxious. I'm scheduled to pull my boat out of the barn this weekend, but we got another inch of snow this morning!

Ed Jakubas
Lucyna II
1982 TR/SK #2801
<img src="http://home.attbi.com/~c25sailor/images/RailwashProfile.jpg" border=0>

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Buzz Maring
Master Marine Consultant

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USA
1771 Posts

Response Posted - 03/26/2002 : 10:34:47

<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
The Luff for a tall rig is 31' 1" and the foot is 18' 10 3/4".
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>

Does anybody know the spinnaker dimensions for a standard rig?

Thanks!

Buzz Maring, C-25 SK/SR #68, "Freya"

Edited by - on

Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 03/26/2002 : 13:47:24

<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
The Luff for a tall rig is 31' 1" and the foot is 18' 10 3/4".
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>

Does anybody know the spinnaker dimensions for a standard rig?

Thanks!

Buzz Maring, C-25 SK/SR #68, "Freya"
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>
Buzz, there on the website

http://c25c250.best.vwh.net/bylaws.html

Duane Wolff
"The Flying Wasp"
C-25, #401 std,sk
Chief Measurer C-25/250 national Org.
<img src="http://im1.shutterfly.com/procserv/47b2dc20b3127cce9cd2f45b211a0000004010" border=0>

Edited by - on

Buzz Maring
Master Marine Consultant

Members Avatar

USA
1771 Posts

Response Posted - 03/27/2002 : 12:12:38

[/quote]
Buzz, there on the website

http://c25c250.best.vwh.net/bylaws.html

[/quote]

Thanks Duane ... I didn't know that stuff was buried there!

Buzz Maring, C-25 SK/SR #68, "Freya"

Edited by - on

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.