Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 05-02-2013, 02:14   #1
Registered User
 
svstrider's Avatar

Join Date: Apr 2003
Location: back on Gold Coast after sailing north to Thailand then east to Pacific via Irian Jaya, PNG & Solomons
Boat: Tennant 47ft Catamaran
Posts: 310
Dealing with jib sheet when reefing main

My mainsail halyard is led through a jammer to the starboard winch on my 47 ft cat. If the wind pipes up on a port tack and we are reaching with the wind forward of the beam, we have to first furl the jib before the main halyard can be put on the winch. Is there any way of securing the jib sheet that frees up this winch without furling the jib? I installed an open line jammer next to the winch for this purpose but it is very hard to get the jib sheet off the winch and into this jammer when the wind is over 20 kts and it often jumps out when we are busy reefing the main.

We can't turn downwind to blanket the jib because of the risk of capsize if it is really blowing. Does anyone ever lead their jib sheet through a jammer on their cabin top?
__________________

__________________
Paul & Kaspar de Wonda Dog
S/V "Pelican V"
"Trust not a living soul and step warily around the dead"
svstrider is offline   Reply With Quote
Old 05-02-2013, 04:45   #2
cruiser

Join Date: Sep 2007
Location: Tampa to New York
Boat: Morgan 33 OutIsland, Magic and 33' offshore scott design "Cutting Edge"
Posts: 1,594
Re: Dealing with jib sheet when reefing main

My first thought is a nice set of rope clutches for your jibsheets.
__________________

__________________
forsailbyowner is offline   Reply With Quote
Old 05-02-2013, 05:00   #3
Registered User

Join Date: Jan 2012
Posts: 1,172
Images: 15
Re: Dealing with jib sheet when reefing main

Rope clutch or horn cleat
__________________
tamicatana is offline   Reply With Quote
Old 05-02-2013, 05:05   #4
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,586
Images: 240
Re: Dealing with jib sheet when reefing main

Quote:
Originally Posted by svstrider View Post
My mainsail halyard is led through a jammer to the starboard winch on my 47 ft cat...
... Does anyone ever lead their jib sheet through a jammer on their cabin top?
Main Halyard through jammer to halyard winch on cabin top.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 05-02-2013, 05:59   #5
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
Re: Dealing with jib sheet when reefing main

Try this simple thing. Take a piece of hi-tech line somewhat smaller than the jib sheet, maybe 8mm (3/8") and about 3m (9 feet) long. tie it in a big loop with a doubled figure eight knot (or whatever).

Keep it in the cockpit pocket near the port winch.

When you need the winch simply Prussic tie the knotted end of this loop around the standing part of the sheet a few feet ahead of the winch. Drop the free end of the loop over the winch base, a nearby cleat, a nearby jammer, something stout. Slide the Prussic towards the jib to tighten up. Ease the sheet off the winch.

Taa Daa! Great for winch overrides too.

When done put the sheet back on the winch, wind the load onto the winch, untie and stow the loop.

The Prussic is quickly tied perfectly by passing the knotted end of the loop under the sheet from your right hand to your left. Then with your right hand pass the other end of the loop over the sheet and then inside the knotted end (between your left hand and the sheet) twice. Let go of the knot, pull on the other end, tidy up the knot.
__________________
daddle is offline   Reply With Quote
Old 05-02-2013, 06:08   #6
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Dealing with jib sheet when reefing main

Main halyard thru a block to another winch?

b.
__________________
barnakiel is offline   Reply With Quote
Old 05-02-2013, 06:38   #7
Marine Service Provider
 
Factor's Avatar

Join Date: Dec 2006
Location: Brisbane Australia
Boat: Corsair Dash MKII
Posts: 4,085
Re: Dealing with jib sheet when reefing main

Quote:
Originally Posted by daddle View Post
Try this simple thing. Take a piece of hi-tech line somewhat smaller than the jib sheet, maybe 8mm (3/8") and about 3m (9 feet) long. tie it in a big loop with a doubled figure eight knot (or whatever).

Keep it in the cockpit pocket near the port winch.

When you need the winch simply Prussic tie the knotted end of this loop around the standing part of the sheet a few feet ahead of the winch. Drop the free end of the loop over the winch base, a nearby cleat, a nearby jammer, something stout. Slide the Prussic towards the jib to tighten up. Ease the sheet off the winch.

Taa Daa! Great for winch overrides too.

When done put the sheet back on the winch, wind the load onto the winch, untie and stow the loop.

The Prussic is quickly tied perfectly by passing the knotted end of the loop under the sheet from your right hand to your left. Then with your right hand pass the other end of the loop over the sheet and then inside the knotted end (between your left hand and the sheet) twice. Let go of the knot, pull on the other end, tidy up the knot.
QFT - an excellent and simple process and one that is worth practicing - it can get you out of so many little issues.
__________________
Factor is offline   Reply With Quote
Old 05-02-2013, 06:43   #8
Registered User
 
Tim R.'s Avatar

Join Date: Jul 2012
Location: Portland, Maine
Boat: Caliber 40LRC
Posts: 604
Re: Dealing with jib sheet when reefing main

Long term, I would plan on installing a separate winch for your main halyard.
__________________
Tim R.
Our Carina is sold
1997 Caliber 40LRC
TKR on a Boat Website
Tim R. is offline   Reply With Quote
Old 05-02-2013, 13:26   #9
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 11,466
Re: Dealing with jib sheet when reefing main

Don't know how big your genoa is, but most clutches won't take the load of a big genny sheet. The loop+prussick knot is a good alternative, but a separate winch is the best (and most expensive) way out.

Cheers,

Jim
__________________
Jim and Ann s/v Insatiable II , lying Port Cygnet, Tasmania once again
Jim Cate is offline   Reply With Quote
Old 05-02-2013, 15:21   #10
Marine Service Provider

Join Date: May 2012
Location: New Orleans
Boat: We have a problem... A serious addiction issue.
Posts: 3,940
Re: Dealing with jib sheet when reefing main

I am assuming this is on the 47' cat. In which case you really need to look at your deck layout. There should be a dedicated halyard winch for a boat this size. If not it is probably e best way to go.

Other options would include a large foot block, but I don't know of one in the size range you would need with a lock on it. I didn't run the load calculations, but I would guess you would need a 100mm for a boat this size, and locking foot blocks just aren't readily available (I don't think) this large. Assuming harken makes one I couldn't find, I would guess you are looking at $3-400 (the non locking 100mm ones are about $250) each, since you would need one per side, you would be looking at $6-800 to make the switch, or pretty much that of a new winch.

Frankly on a boat this size to not have a dedicated halyard winch seems a little strange to me. My first thought is that someone either removed deck hardware, or had it set up really strangly from the factory.

Can you post pictures of the deck layout?
__________________
Greg

- If animals weren't meant to be eaten then they wouldn't be made of food.
Stumble is offline   Reply With Quote
Old 05-02-2013, 15:29   #11
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Dealing with jib sheet when reefing main

Some time ago I have converted a 54' cat for single-handling. One of the jobs was to move coaming winches to the cabin-top (because closer to the helm). I added some leads, some blocks and some clutches. Then everything was done from the helm.

Except that cat had no big genoa, just a fractional selftacker and a screecher. The jib was perhaps 40 sq m (440 sq ft) or less, the clutch worked fine.

b.
__________________
barnakiel is offline   Reply With Quote
Old 05-02-2013, 23:16   #12
Registered User

Join Date: Jan 2013
Posts: 3
Images: 6
Re: Dealing with jib sheet when reefing main

Do you have a diagram of the loop & Prussic knot layout?
Thanks,
James
__________________
jmurphy is offline   Reply With Quote
Old 05-02-2013, 23:33   #13
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
Re: Dealing with jib sheet when reefing main

Quote:
Originally Posted by jmurphy View Post
Do you have a diagram of the loop & Prussic knot layout?
Thanks,
James
To make the loop I would join the two ends with this:

The finished setup on the sheet looks like this except I do it with the loop knot where the Prussic part goes on top of the windings. Doesn't really matter but the figure eight can get in the way if it ends up elsewhere.
__________________
daddle is offline   Reply With Quote
Old 05-02-2013, 23:39   #14
Registered User

Join Date: Apr 2011
Posts: 2,243
Re: Dealing with jib sheet when reefing main

Halyard winch doesn't have to be a fancy self tailing one. Try looking on Ebay for used ones.

Added one recently for the reefing lines, purchased from Ebay (Barient 16) for $100.
__________________
MarkSF is offline   Reply With Quote
Old 05-02-2013, 23:57   #15
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Dealing with jib sheet when reefing main

Quote:
Originally Posted by forsailbyowner View Post
My first thought is a nice set of rope clutches for your jibsheets.
I would not consider this safe. Especially on a cat. You wouldn't be able to release the clutch in a gust without reloading the sheet on the winch first.

On a 47 foot boat, the halyard deserves a dedicated winch. There's just no way to get around that fact. Dedicate the primaries to the sheets, and install a winch for the halyard.

I wouldn't ask a prusik knot to do the work of a winch either. That's pennywise and pound foolish. If it takes more than a couple seconds to dump either the sheets or the halyard, the boat is at risk.
__________________

__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Reply

Tags
jib

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:17.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.