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 Post subject: H18 Spinnaker
PostPosted: Thu Oct 06, 2011 12:34 am 
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Site Rank - Deck Hand

Joined: Thu Sep 08, 2011 3:21 am
Posts: 18
Hi there,

what about use a furler to close the spinnaker ?
here are some F16 that have this system and is pretty fast and easy.
Any idea ?


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 Post subject: Re: H18 Spinnaker
PostPosted: Thu Oct 06, 2011 3:53 am 
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Joined: Tue Apr 19, 2011 2:46 pm
Posts: 230
Location: Greenville SC
It doesn't work well with a furler. That's probably a hooter or screecher you have seen. Spins have too much shape to be furled

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 Post subject: Re: H18 Spinnaker
PostPosted: Thu Oct 06, 2011 1:20 pm 
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Site Rank - Captain

Joined: Wed Jun 02, 2010 9:20 am
Posts: 37
Location: Czech Republic / SB / Lipno
x40 catamarans has spinaker with a furler and while upwind sailing they lower it on tramp
see vid in time 1:32


I think it could work good with small spinaker too.


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 Post subject: Re: H18 Spinnaker
PostPosted: Sun Oct 30, 2011 4:05 am 
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Site Rank - Captain

Joined: Wed Jun 02, 2010 9:20 am
Posts: 37
Location: Czech Republic / SB / Lipno
There are some pics with HC18 and furler spinnaker
http://www.forward-sailing.com/en.php?artisteid=54&tem=tem&page=temoignage
Image


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 Post subject: Re: H18 Spinnaker
PostPosted: Sun Oct 30, 2011 3:34 pm 
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Site Rank - Old Salt

Joined: Mon Dec 31, 2007 6:06 pm
Posts: 610
Location: SE PA/ Chesapeak Bay
Hi,

Yes ... we "multihullers" would call that sail a spinnacker .... but most "monohullers/sailmakers" would call that a "screacher or jennacker" .... since it is a fairly "flat" shape ....

... especially if the clew was cut just a lil' higher ...

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H-18 mag/ #9458
Fleet 54 Div 11


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 Post subject: Re: H18 Spinnaker
PostPosted: Mon Oct 31, 2011 4:40 am 
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Site Rank - Old Salt

Joined: Wed May 17, 2006 7:49 am
Posts: 1072
Location: North Carolina
It could be done but the extra drag to windward, especially in light air, would be dramatic. You would also lose the ability to adjust sail shape as the clew is fixed at the furler. There are times when trying to make a mark that letting the clew out a bit allows a better angle. Uphaul is also fixed on the furler and would prevent any adjustment there to create a fuller sail.

Typically you sail with the luff hard and clew at the pole end but the ability to adjust each of these points is important on a race course.


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 Post subject: Re: H18 Spinnaker
PostPosted: Tue Nov 01, 2011 3:13 am 
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Site Rank - Captain

Joined: Wed Jun 02, 2010 9:20 am
Posts: 37
Location: Czech Republic / SB / Lipno
Let`s see this http://www.facnor.com/uk/products/asym_spi_furlers/default.asp its look very simple :)


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 Post subject: Re: H18 Spinnaker
PostPosted: Tue Nov 01, 2011 12:52 pm 
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Joined: Wed May 17, 2006 7:49 am
Posts: 1072
Location: North Carolina
Nice system but it is shown on a bow sprit, not a 12' spin pole. Still remains up continuously as there is no way to launch it from the deck of a beach cat. It will create wind resistance and slow you down going upwind.
Whats the advantage over a mid-pole snuffer? None that I can see! What does it cost compared to a mid-pole snuffer head and sock, still need the pole either way?
Mono hulls have furling mains as well, is that the next thing in beach cats? I don't think so :lol:


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 Post subject: Re: H18 Spinnaker
PostPosted: Wed Nov 02, 2011 6:34 am 
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Site Rank - Old Salt

Joined: Sun Aug 26, 2007 5:40 am
Posts: 410
Location: Metuchen NJ
In my 11 years experience on the pointy end flying an asymmetrical J109 chute (100SM), the sail shape is always adjusted from the tack line at the bottom. Easing the tack will create a fuller shape up top when driving deeper. The same holds true for a Hobie. Easing the halyard only allows the chute to blow off to leeward, creating an unstable kite. There's no gain and a lot of loss from that.

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Chris
'88 H18SE Arís


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