T & T snubber design
I have been using a snubber for over 45 years, mostly on sailboats from 30 to
60 feet, and trawlers 32 to 42 feet in length. Winds have been up to 90
knots. In this type we have broken one 1/2" snubber at the eye splice (after
this incident in 1980, I moused the splice with whipping twine to make sure
that the spice throat was tight). The squall which broke the 1/2" line
caught the boat from abeam, and we didn't have time to see the aerometer, or
inclinator, since we were hanging on--estimate wind speed was in excess of 70
knots and the angle of heel of the vessel was about 45 degrees, with no sails
up. At another time, we were next to a similar sized vessel with no snubber,
and their broke their chain, while we just surged back safely on the snubber.
For a vessel of 45 feet we used one 1/2" snubber, and one 5/8" snubber. These
were arranged so that as the 1/2" line came close to its elastic limits, the
5/8" line was taking the full load. I have used both the chain hooks, and SS
plates. There is no reason to "re-invent" the attachments. For application
to a rope rode a rolling hitch works well.
Bob Austin
I'm getting the impression that the division here is not so much which
attachment (hook or chain plate) is better, but any appliance vs. a
rolling hitch. Does the hitch work with chain? I've got an all chain
rode of 3/8 BBB (I think that's the correct designation, it came with
the boat). I have never found a hook that would fit between the links.
I had one of the clerks at a well known marine store (that used to live
on ego alley in Annapolis but shall go un-named),
:-)
try to find something that would grab my chain. The chain display was
some ways away so it wasn't easy to check. We made many trips back and
forth. He couldn't find anything. I gave up because I had to go to the
head, and I had lost coffidence in the young man's ability to solve the
problem. So, does a hitch solve my problem. Those animated "how to tie
this knot" videos on the web are great.
John Blackburn
Bob Austin wrote:
For application
to a rope rode a rolling hitch works well.
Bob Austin
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It's hard to believe that we are going over this topic when we covered it
rather well within the last 12 months! "Practical Sailor" tested various
"chain hooks/claws" and concluded that the hook included in this article was
the best:
< http://best-charter.si/sidra/Practical_Sailor_UCG.pdf >
As to the person who has never been able to get a hook to stay on, I suggest
that a Campbell Chain Hook, available at any farm or box store will not let
go of an anchor chain without serious persuasion - cost is under $10.00.
If this doesn't satisfy you, just search Bob Austin's emails on this
subject. He has been there, done that, and did not lose his "T" shirt. With
an infinitesimal fraction of Bob's experience, I came to the same conclusion
and use two different diameter lines to the snubber plate so that one will
always stretch. I suspect that any strong hook or plate will work, no matter
what their perceived merits. Develop an SOP and use it every time.
Ron Rogers
Tylaska T-12 trigger shackle will fit.
-----Original Message-----
From: trawlers-and-trawlering-bounces@lists.samurai.com
[mailto:trawlers-and-trawlering-bounces@lists.samurai.com] On Behalf Of John
Blackburn
Sent: Tuesday, January 26, 2010 6:39 PM
To: Bob Austin
Cc: trawlers-and-trawlering@lists.samurai.com
Subject: Re: T&T: T & T snubber design
I'm getting the impression that the division here is not so much which
attachment (hook or chain plate) is better, but any appliance vs. a
rolling hitch. Does the hitch work with chain? I've got an all chain
rode of 3/8 BBB (I think that's the correct designation, it came with
the boat). I have never found a hook that would fit between the links.
I had one of the clerks at a well known marine store (that used to live
on ego alley in Annapolis but shall go un-named),
:-)
try to find something that would grab my chain. The chain display was
some ways away so it wasn't easy to check. We made many trips back and
forth. He couldn't find anything. I gave up because I had to go to the
head, and I had lost coffidence in the young man's ability to solve the
problem. So, does a hitch solve my problem. Those animated "how to tie
this knot" videos on the web are great.
John Blackburn
Bob Austin wrote:
For application
to a rope rode a rolling hitch works well.
Bob Austin
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To unsubscribe or modify your subscription options (get password, change
email address, etc) go to:
http://lists.samurai.com/mailman/options/trawlers-and-trawlering
Trawlers & Trawlering and T&T are trademarks of Water World
Productions. Unauthorized use is prohibited.
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To unsubscribe or modify your subscription options (get password, change
email address, etc) go to:
http://lists.samurai.com/mailman/options/trawlers-and-trawlering
Trawlers & Trawlering and T&T are trademarks of Water World
Productions. Unauthorized use is prohibited.
Tylaska T-12 trigger shackle will fit.
I've got an all chain
rode of 3/8 BBB (I think that's the correct designation, it came with
the boat). I have never found a hook that would fit between the links.
Although this may fit, the problem with the spinnaker type shackle is that
they are rated in a straight pull load (designed for sails, such as a
spinnaker). If they have a side load, they will fail at a much lower
strength. Getting "pinched" in a chain, and side loaded is a distinct
possibility of these type of shackles.
Bob Austin