Attaching snubber to chain... - Page 3 - 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 > Skills and Seamanship > Seamanship & Navigation
 Not a Member? 

Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


Reply
 
LinkBack Thread Tools
  #21  
Old 03-03-2009
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,601
Thanks: 5
Thanked 73 Times in 68 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Quote:
Originally Posted by Omatako View Post
If by chain hooks you guys mean one of these, I have been using these for years to stop chain growl. Coincidentally bought this one the other day and still have to splice a line on.



I never use it to hold a rode that has not got the bitter end securely fastened to the boat but I have yet to have one of these jump off a chain and when on, it does no damage.

Oh, and I have no need for a bridle.
That's the one. Virtually exactly what we have. Ours has slightly different attachment point for the line.

__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
Reply With Quote Quick reply to this message Share with Facebook
  #22  
Old 03-04-2009
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,904
Thanks: 3
Thanked 110 Times in 53 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Quote:
Originally Posted by tdw View Post
That's the one. Virtually exactly what we have. Ours has slightly different attachment point for the line.

Yep... the same one I use Fuzzy. Cheap, simple, cheap, cheap, etc. Did I tell you that I use that one because it is cheap? Why is this so important? Because it also does not float!!!

Brian
__________________
Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #23  
Old 03-05-2009
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,601
Thanks: 5
Thanked 73 Times in 68 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Found this.....looks interesting......simple to make.....think I'll try it out.



Of course the other alternative would be to simply use a big enough shackle and runs two lines from the hook itself. Same result, even simpler to make.
__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
Reply With Quote Quick reply to this message Share with Facebook
  #24  
Old 03-05-2009
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,904
Thanks: 3
Thanked 110 Times in 53 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Quote:
Originally Posted by tdw View Post
Found this.....looks interesting......simple to make.....think I'll try it out.



Of course the other alternative would be to simply use a big enough shackle and runs two lines from the hook itself. Same result, even simpler to make.
That is basically what we did, except we have a true rubber snubber on the main line before the splice.

Brian
__________________
Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #25  
Old 03-05-2009
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,601
Thanks: 5
Thanked 73 Times in 68 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Quote:
Originally Posted by Cruisingdad View Post
That is basically what we did, except we have a true rubber snubber on the main line before the splice.

Brian
What is a 'true rubber snubber' ?
__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
Reply With Quote Quick reply to this message Share with Facebook
  #26  
Old 03-05-2009
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,904
Thanks: 3
Thanked 110 Times in 53 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Quote:
Originally Posted by tdw View Post
What is a 'true rubber snubber' ?
This:

[IMG][/IMG]

[IMG][/IMG]

They do a great job at taking out the "bump" when the line get taunt. However, they can snap in a storm. THat is why you always want to make sure that if you use them for dock lines, that you have a secondary line to take up the slack should the snubber break. This is only an issue in the dock because if the dock line breaks, you suddenly have more slack in your dock line and you don't want the boat rubbing on the leward dock. The line itself is still there and will hold. Does that make sense??

Brian
__________________
Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #27  
Old 03-16-2009
pdqaltair's Avatar
Senior Member
 
Join Date: Nov 2008
Location: Deale, MD
Posts: 2,252
Thanks: 1
Thanked 35 Times in 35 Posts
Rep Power: 6
pdqaltair is on a distinguished road
Here is a plate with a latch.

OK, first I found source for a commercial plate: ABI. It is 5/16" thick SS with no rated working load. Workable, similar to Sailingdog's plate, and I found some sailors with experience. One, with a 39" 12,000# Privilege cat is using one on a circumnavigation and is happy with it. He noted that it has distorted a bit, as the cat sails at anchor sometimes. I am sure he has used it hard.

Though I have worked with chain hooks, I have always wonder if they could come off, however seldom. A few sailors noted that yes, it has happened to them. Two noted that their hooks had released when their bridle touched bottom, which is not uncommon for a cat at slack tide. Perhaps a rock or the mud lifted it off - we do not know. Thus, I came up with this design, in red.

It is 3" x 4" x 3/8" plate, galvanized after fabrication, A-460 steel, as I recall. The calculated working load is 3200# (one leg attached, gate open) and I pulled it to 5500# (one leg attached, gate open) with no permanent distortion (I have a test rig, used to destroy rock climbing gear - my other passion). With both legs attached and the gate closed, the working load is ~ 10,000 pounds, but it does not matter because no other link in the system is so strong. I have since replaced the gate shown in the photograph with a thicker piece of 316 stainless, for better feel, durability, and strength in the gate, should there be some odd bind.

Some have commented on the longer slot and strength; yes, the arm is longer but the angle is less and the calculations show only minor differences. I did pull test it. With the gate in place it is MUCH stronger, just as a carabiner is 3x stronger closed with gate (thay are generally rated closed gate, but sometimes marked with open gate ratings as well). I sized it for my 8000# cat, so if you have something heavier, adjust accordingly. Also the carbon steel plate I used is tough but not exceptionally strong; there are better materials.

The hole at the bottom is for attaching fiber rode (rolling hitch) should I let out more line and run out of chain. If you have all chain, delete it.

Thoughts? My blog has another photo and additional discussion.

Perhaps it is mostly a catamaran thing. If I like it well enough - I have only used it twice - I may fabricated in 304 or 316 SS in the Fall. I suspect I will find 5/16" is then enough for my boat, and as strong as the other components in the system.
Attached Thumbnails
Attaching snubber to chain...-anchorchaingrabberplate.jpg   Attaching snubber to chain...-bridle-plate-unrigged.jpg  
__________________
(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")

"Well, I just climb up to them."

by Joe Brown, English rock climber




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by pdqaltair; 03-16-2009 at 07:03 PM. Reason: errors
Reply With Quote Quick reply to this message Share with Facebook
  #28  
Old 03-18-2009
St Anna's Avatar
Senior Member
 
Join Date: Mar 2003
Location: Southern QLD, Bayside
Posts: 1,428
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 12
St Anna is on a distinguished road
We always used a hook, but the snubber used to make noise on the bow roller. Therefore We shackle onto the outside of the bow roller and this stops any noise and eliminates all chafe. It is easy to hook on as you lower the chain. Also about 5-7m for the snubber and leave a huge loop of chain. Works a treat.
David
Reply With Quote Quick reply to this message Share with Facebook
  #29  
Old 03-22-2009
Senior Member
 
Join Date: Jun 2008
Location: Manitoulin Island Ontario
Posts: 116
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
Keldee is on a distinguished road
We always use line and attach it to the chain with a rolling hitch.So far never had a problem with chafe as we use a chafe guard made out of clear plastic piping held in place with electrical ties.Have anchored through a catagory 1 hurricane, a tropical storm and pretty sustained high winds in the bahamas.
Reply With Quote Quick reply to this message Share with Facebook
  #30  
Old 03-23-2009
tdw's Avatar
tdw tdw is offline
Super Fuzzy Moderator
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 14,601
Thanks: 5
Thanked 73 Times in 68 Posts
Rep Power: 10
tdw is a jewel in the rough tdw is a jewel in the rough tdw is a jewel in the rough
Quote:
Originally Posted by Cruisingdad View Post
This:

[IMG][/IMG]

[IMG][/IMG]

They do a great job at taking out the "bump" when the line get taunt. However, they can snap in a storm. THat is why you always want to make sure that if you use them for dock lines, that you have a secondary line to take up the slack should the snubber break. This is only an issue in the dock because if the dock line breaks, you suddenly have more slack in your dock line and you don't want the boat rubbing on the leward dock. The line itself is still there and will hold. Does that make sense??

Brian
Ha, took me long enought to reply didn't it ? Sorry about that Chief.

I did know what a snubber was, it was the 'true' part that confused/bemused me.

I like the allowing for a safety line. Nice bit of design.
__________________
Andrew B

"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
To Have and To Hold (anchoring) GoodOldBoat Good Old Boat 6 12-28-2010 05:50 AM
The Perfect Anchor Rode Tom Wood Seamanship Articles 0 09-08-2003 08:00 PM
The Perfect Anchor Rode Tom Wood Gear and Maintenance Articles 0 09-08-2003 08:00 PM
Dueling Rodes Tom Wood Seamanship Articles 0 10-21-1999 08:00 PM
Dueling Rodes Tom Wood Gear and Maintenance Articles 0 10-21-1999 08:00 PM


All times are GMT -4. The time now is 12:06 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.