Cool, soft way of attaching jib sheets - Page 4 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest > General Discussion (sailing related)
 Not a Member? 


Like Tree15Likes
Reply
 
LinkBack Thread Tools
  #31  
Old 01-14-2013
Senior Member
 
Join Date: Sep 2011
Location: Liberty Landing
Posts: 665
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
peterchech is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Yeah dyneema/amsteel is great stuff, so easy to splice! And much cheaper to makes shackles out of. Here's my favorite soft shackle tying method.
Better Soft Shackle

I use them now for nearly everything. Makes sense too. 1/4" amsteel has a breaking strength of 8400#, costs $1.40/ft and requires about 3 feet of material to make a shackle. Hard to beat that economy.
downeast450 and Marknid like this.
Reply With Quote Share with Facebook
  #32  
Old 01-14-2013
downeast450's Avatar
Tundra Down
 
Join Date: Jan 2008
Location: Seal Harbor, Maine
Posts: 1,228
Thanks: 25
Thanked 17 Times in 17 Posts
Rep Power: 7
downeast450 is on a distinguished road
Re: Cool, soft way of attaching jib sheets

My favorite personal reference image is lifting my I-28 with a piece of 1/4" line. Ha!

Down
Reply With Quote Share with Facebook
  #33  
Old 01-14-2013
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,942
Thanks: 6
Thanked 43 Times in 41 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Lol. I always visualize lifting my car with a piece of 1/8".
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #34  
Old 01-14-2013
sunfish?junior?
 
Join Date: Mar 2012
Location: Richmond ky
Posts: 748
Thanks: 47
Thanked 11 Times in 11 Posts
Rep Power: 3
Lou452 is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Peterchech You got a good line going in this thread. Thanks for starting it ! Most of us have seen some good ideas for light and heavy air. Changing sheets under way and how to stay just a little more safe. Thanks to all of you Kind regards, Lou
Reply With Quote Share with Facebook
  #35  
Old 01-14-2013
sunfish?junior?
 
Join Date: Mar 2012
Location: Richmond ky
Posts: 748
Thanks: 47
Thanked 11 Times in 11 Posts
Rep Power: 3
Lou452 is on a distinguished road
Re: Cool, soft way of attaching jib sheets

This might be off topic but does a chart for sail area vs line size strength with wind speed exist? Lets take say the fishing line in the light air and 180 sq ft of sail needs to be what test ? Then with the same sail you will need a -- size line in a 20 knots? You may also need to change your choice of knot on the clew. Regards. Lou
Reply With Quote Share with Facebook
  #36  
Old 01-14-2013
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,942
Thanks: 6
Thanked 43 Times in 41 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Lou,

There are formulas that will tell you sheet loads. I am on my iPhone now or I would post it.

Basically with modern line you size for handling, the stuff is so strong it isn't an issue unless you use tapered sheets
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #37  
Old 01-14-2013
BarryL's Avatar
Senior Member
 
Join Date: Aug 2003
Location: Long Island, NY
Posts: 1,615
Thanks: 3
Thanked 27 Times in 26 Posts
Rep Power: 12
BarryL is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Hey,

Can we all agree that:
1. If you race, or have many different headsails, that two separate sheets are best, and may be tied on with bowlines, or whatever method you like.

2. that if you cruise, and use 1 headsail like 99% of the time, that a single sheet, attached with a cows hitch is pretty easy to so and very effective

3. That there are many different ways of attaching sheets to sails, and the you are able to choose the method that satisfies you and and that said method will not satisfy anyone else.

Barry



Quote:
Originally Posted by knuterikt View Post
Maybe because it is kind of awkward to get the sheet free of the sail after use or during a sail change?

Must admit that I prefers a soft shackle to the knot in the OP.
__________________
Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #38  
Old 01-15-2013
Senior Member
 
Join Date: Nov 2010
Location: Baltimore
Posts: 422
Thanks: 10
Thanked 5 Times in 5 Posts
Rep Power: 4
MastUndSchotbruch is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Quote:
Originally Posted by BarryL View Post
Hey,

Can we all agree that:
1. If you race, or have many different headsails, that two separate sheets are best, and may be tied on with bowlines, or whatever method you like.

2. that if you cruise, and use 1 headsail like 99% of the time, that a single sheet, attached with a cows hitch is pretty easy to so and very effective

3. That there are many different ways of attaching sheets to sails, and the you are able to choose the method that satisfies you and and that said method will not satisfy anyone else.

Barry
I don't agree with (1). Two bowlines on the clew are a great way to get your jib stuck on shrouds, lifelines, whatever, when tacking. I much prefer a single sheet with a soft (Dutch) shackle.
Reply With Quote Share with Facebook
  #39  
Old 01-15-2013
Senior Member
 
Join Date: Sep 2011
Location: Liberty Landing
Posts: 665
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
peterchech is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Quote:
Originally Posted by Lou452 View Post
This might be off topic but does a chart for sail area vs line size strength with wind speed exist? Lets take say the fishing line in the light air and 180 sq ft of sail needs to be what test ? Then with the same sail you will need a -- size line in a 20 knots? You may also need to change your choice of knot on the clew. Regards. Lou
Thanks Lou. Whenever I learn something interesting I try to share it online. I've learned so much myself from others who do the same.

Like stumble said, my understanding of jib sheets is that for the most part you are sizing up for ease of handling.

My light air spinnaker sheets are 1/8" vectran core. They have a tensile strength of about 2000# and could certainly handle the loads in heavy air too, but in anything over 15 knots they start cutting through the gloves. 25' boat.

I think of it this way. The winch on my mast is the same size as my primaries. I weigh about 200#, and get winched up the mast fairly often. I see how much effort is needed to get me up the mast with that winch, even though I usually help with my legs, and i can say with confidence that I never put nearly that much strain on my primaries while trimming the sheets, even beating or trimming the guy on a hot angle. So it is unlikely that the sheets have to handle any loads greater than that of my 200# (plus friction so to be safe I say 300#). Obviously you want some room for error, but still this gives a ballpark figure in my mind.

I have winched my 250# father up the mast of his 32' keelboat, and found that on his (larger) primaries, the strain in low gear while winching him up is about equal to the max strain in low gear on the primaries while trimming, so for his 32 footer a minimum working load of say 375# is required, plus a margin of error. So 1/4" sta set polyester double braid, with a tensile strength of 2350#, and a working load for non critical applications of about 460# (tensile strength/5), could theoretically handle the loads. But it would be tough as hell on the hands and there may not be enough room on the winch for the number of turns you would need to make it manageable!

I tend to overestimate loads on my own boat, it helps to be able to put things in perspective.
Lou452 likes this.
Reply With Quote Share with Facebook
  #40  
Old 01-15-2013
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 685
Thanks: 6
Thanked 50 Times in 45 Posts
Rep Power: 9
knuterikt is on a distinguished road
Re: Cool, soft way of attaching jib sheets

Quote:
Originally Posted by Lou452 View Post
This might be off topic but does a chart for sail area vs line size strength with wind speed exist? Lets take say the fishing line in the light air and 180 sq ft of sail needs to be what test ? Then with the same sail you will need a -- size line in a 20 knots? You may also need to change your choice of knot on the clew. Regards. Lou
Not a chart but calculators, input some measurements and click Harken
Lou452 likes this.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Attaching G10 to fiberglass Irunbird Gear & Maintenance 5 09-11-2012 07:23 AM
Attaching sheets petermat Racing 16 01-21-2011 09:29 AM
Attaching Jibsheets Dan Dickison Gear and Maintenance Articles 0 03-04-2002 07:00 PM


All times are GMT -4. The time now is 12:01 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.