Reply
 
Thread Tools Display Modes
 
Old 12-27-2015, 11:05 PM   #1
Senior Member
 
HenryD's Avatar
 
City: Heading south for Ft. Myers
Country: USA
Vessel Name: Seven Tenths
Vessel Model: Mirage / Great Harbour 47
Join Date: Dec 2012
Posts: 353
Anchor shackle / swivel

Hello,
I am trying to figure out a solution for an anchoring problem. More than 50% of the time, when we retrieve the anchor, the pin on the shackle seems to snag the side of the anchor roller. If I use a boat hook, I can lift the anchor a bit and get the windlass to retrieve the remainder of the rode.

I have seen a shackle using a square head bolt to present a smaller surface to get snagged. My other thought is to go to a swivel that is smaller than the width of the shackle.

Suggestions?
__________________
Advertisement

HenryD is offline   Reply With Quote
Old 12-27-2015, 11:15 PM   #2
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
https://www.ropeinc.com/kong-anchorswivels.html
__________________

Capt.Bill11 is offline   Reply With Quote
Old 12-27-2015, 11:18 PM   #3
Senior Member
 
Capt. Jon's Avatar
 
City: Alabama
Country: USA
Vessel Name: Waypoint
Vessel Model: Californian 48' CPMY
Join Date: Dec 2013
Posts: 381
Saw someone on the dock installing one with a counter sunk Allen head screw. This one I think was 5/16" and SS. He bought it at West Marine.
__________________
Jon
------------------------------------------------
Waypoint's are abstract, often having no obvious relationship to any distinctive features of the real world.
Capt. Jon is offline   Reply With Quote
Old 12-28-2015, 12:44 AM   #4
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Yeah, be sure to use thread locker on the screw.
Capt.Bill11 is offline   Reply With Quote
Old 12-28-2015, 12:52 AM   #5
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
We removed the swivel from our rode many years ago after realizing it was of no benefit at all to us. We believe the fewer components in a ground tackle setup the better.

But if we decided we needed a swivel there is only one we would use and that is the WASI ball. Unlike swivels that pivot in only one direction when attached to an anchor shank (unless a shackle is used between the swivel and the anchor) the WASI compensates for the rode pulling in any direction and it has no swivel pin to break. Nor does it have any protruding fasteners that can catch on anything.

Their only downside is they are very expensive.
Attached Images
 
Marin is offline   Reply With Quote
Old 12-28-2015, 01:11 AM   #6
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Those are very good swivels as well.

As are these: Ultra Flip Swivel | Quickline USA

We have the Ultra flip swivels on the two Ultra anchors we have hanging at the bow of the boat I currently run.

But they are as mentioned expensive.
Capt.Bill11 is offline   Reply With Quote
Old 12-28-2015, 02:22 AM   #7
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
I'd not heard of the Ultra Flip before. From the video and the look of the design it seems like it would be an ideal solution for a situation that called for a swivel.
Marin is offline   Reply With Quote
Old 12-28-2015, 06:42 AM   #8
Guru
 
timjet's Avatar
 
Join Date: Apr 2009
Posts: 1,905
I've been thinking of getting a swivel. Yesterday I had to remove my delta anchor to untwist the chain. The windlass had difficulty retreiving the chain because of the twist.
__________________
Tim
Tampa Bay
Carver 355 ACMY Twin Cummins Diesels Sold
timjet is offline   Reply With Quote
Old 12-28-2015, 07:30 AM   #9
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 4,816
Maybe try a different style of shackle. Some have a more rounded pin head and may not hang as they lack corners.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 12-28-2015, 08:12 AM   #10
Senior Member
 
Roger Long's Avatar
 
City: Albany, NY
Country: Albany
Vessel Name: Gypsy Star
Vessel Model: Gulf Star 43
Join Date: Jul 2015
Posts: 193
I'm a fan of Mantus anchors so I am using their new swivel:





It is potentially a very robust design but I think it depends too much on two lengths of seizing wire to secure the cone that holds the two halves together. I coated the threads liberally with 5200 while assembling it as well as using the seizing wire. I'll need to use a torch when I end for end the chain but I have no worries about it coming apart.

Next time, I'll 5200 a length of SS rod in the hole for the seizing wire and then put a layer of wire over it in the groove. It should be easier to drive that out than to heat up the whole thing.

This swivel goes over the anchor roller very easily.

I'm also using their chain hook:

https://youtu.be/szerA6Y8U7c



The retainer broke the first time I tried to show my crew how to use it, I believe because the plastic gets brittle in cold. They sent me two replacements but they didn't arrive before we left on our 10 day shakedown cruise. I didn't see any sign that the retainer is needed as the cross shaped opening makes it quite resistant to coming undone. I'll try the retainers again and report but I suspect they are more trouble than they are worth. The retainers are very easy to remove and replace.
Roger Long is offline   Reply With Quote
Old 12-28-2015, 10:40 AM   #11
Senior Member
 
HenryD's Avatar
 
City: Heading south for Ft. Myers
Country: USA
Vessel Name: Seven Tenths
Vessel Model: Mirage / Great Harbour 47
Join Date: Dec 2012
Posts: 353
thank you all...looks like a swivel is in our future. I remember several on sale last year at the Miami boat show so that will be the plan.
HenryD is offline   Reply With Quote
Old 12-28-2015, 11:33 AM   #12
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 13,711
Henry,
Will using a hex head cap screw reduce the width enough to clear the bow roller? I think some or many shackles have tapered threads lik pipe threads. May need to thread match.
Also there are many different kinds of shackles many of them narrower than others. I just put a smaller shackle on my rode to clear the bow roller flange.
Swivels are usually a weak link.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 12-28-2015, 11:38 AM   #13
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
It has been suggested from time to time that a swivel is a potential weak point in the ground tackle. I have never used one for that reason. I occasionally experience a problem with the chain twisting but I find that dropping the anchor back into the water and raising is slowly will allow the anchor to spin and the chain to straighten out.


A different style of shackle may solve the OP's problem or even installing the existing one reversed (left to right) might help.
rwidman is offline   Reply With Quote
Old 12-28-2015, 12:42 PM   #14
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 3,187
We found that a swivel allowed the anchor to turn out of alignment about as much as it allowed to find correct alignment.

Our current arrangement works very well with an all chain rode. We have a machined groove in the bow roller that the vertical links ride in, and the horizontal links lie flat on the roller. This, plus the chain ring on the windlass keep the chain in a fixed orientation. The anchor is then shackled to the chain end such that the anchor naturally hangs correctly. Sometimes it takes two shackles to get the orientation correct. Now Gravity is your friend and the anchor comes up and parks correctly every time.
__________________
www.MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 12-28-2015, 01:12 PM   #15
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
Quote:
Originally Posted by twistedtree View Post
We have a machined groove in the bow roller that the vertical links ride in, and the horizontal links lie flat on the roller.
This is the very best solution in my opinion if one uses an all-chain rode.
Marin is offline   Reply With Quote
Old 12-28-2015, 05:42 PM   #16
Guru
 
Xsbank's Avatar
 
City: Pender Harbour, BC
Country: Canada
Vessel Name: Gwaii Haanas
Vessel Model: Vancouver Shipyards Custom Aluminum 52
Join Date: Sep 2013
Posts: 2,447
Yes, twisted tree has it. I just tossed my swivel as it was causing more trouble than it solved and it used to get hung up. No swivel, happy anchoring!
__________________
Don't believe everything that you think.
Xsbank is offline   Reply With Quote
Old 12-28-2015, 06:07 PM   #17
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,887
but if you don't have groove...and until you get one...a swivel may help.


And no I don't anchor in hurricances so the slight loss in strength isn't an issue.
psneeld is offline   Reply With Quote
Old 12-28-2015, 07:35 PM   #18
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 3,792
We used a WASI (bought from Fisheries Supply) for many years and hundreds of anchorings; I made the mistake of slightly undersizing mine; often was the time the anchor (an 88# Delta) still came up backwards and I had to untwist the chain slightly to get it right. Other than that a very nice piece of gear. The Ultra wasn't out yet when I bought ours, I think that's the route I'd take today.
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is offline   Reply With Quote
Old 12-28-2015, 10:24 PM   #19
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 3,187
Quote:
Originally Posted by psneeld View Post
but if you don't have groove...and until you get one...a swivel may help.
Yes, if the anchor does come up wrong, a swivel sure makes it easier to get it aligned correctly.

My boat came with the grove already in place, but if you had to have one cut, I suspect it would be about the same cost as a stainless swivel.
__________________
www.MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 12-28-2015, 11:03 PM   #20
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 13,711
Twisted,
Yes but the grooved roller should work every time instead of 5%.
__________________

__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 03:18 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012