OK my two cents in the subject - if the main loads up in heavy wind/seas and 
you don't release the end boom preventer quickly... you can break the boom - 
snap!
I went with the Wichard Gybe Easy system on a gulf crossing last year and 
really like idea of a controlled Gybe vs relying on manual method. You can also 
make your own if you have a couple of snap shackles and a climbing gadget used 
for similar line tensioning idea. 
Just sayin..

Sent from my iPhone

On May 10, 2013, at 12:00 PM, cnc-list-requ...@cnc-list.com wrote:

> Send CnC-List mailing list submissions to
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> Today's Topics:
> 
>   1. Re:  Gybe preventer (David Risch)
>   2. Re:  Gybe preventer (dwight veinot)
>   3. Re:  Gybe preventer (Andrew Burton)
>   4. Re:  Gybe preventer (David Risch)
>   5. Re:  Gybe preventer (Joel Aronson)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 10 May 2013 11:39:33 -0400
> From: David Risch <davidrisc...@msn.com>
> To: CNC CNC <cnc-list@cnc-list.com>
> Subject: Re: Stus-List Gybe preventer
> Message-ID: <blu174-w15a09af1d8cc9626beec52da...@phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Again Ditto.  
> 
> I have the same arrangement. It allows easy attachment/detachment on the boat 
> in a safe position in lieu of trying to secure at end of boom or at the bow.  
>  Mine also adjusts from boom.
> 
> Although I have low tech dacron, not the fancy smancy Dyneema...
> 
> David F. Risch
> 1981 40-2
> (401) 419-4650 (cell)
> 
> 
> From: a.burton.sai...@gmail.com
> Date: Fri, 10 May 2013 11:32:55 -0400
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> 
> One thing I've seen on boats that run a lot or have high, long booms, is a 
> permanently rigged piece of Dynema attached at the end of the boom and run 
> forward to the a snap-shackle at the gooseneck. That way it's easy to rig a 
> preventer to the bow when the sheets are already eased; just release the line 
> from the end of the boom and snap it to the preventer from the bow. If 
> running to the bow, I will usually just run the preventer through the mooring 
> line fairlead...with appropriate chafe protection if it's going to be rigged 
> for more than a few hours.
> 
> 
> 
> Andy
> C&C 40 
> Peregrine
> 
> 
> On Fri, May 10, 2013 at 11:16 AM, David Risch <davidrisc...@msn.com> wrote:
> 
> 
> 
> 
> 
> Ditto what Andy said...
> 
> And when in ocean I run two preventers - port and starboard to the bow and 
> back to cockpit winches.   All lines, blocks are of stout sizing.   Loads can 
> be enormous.
> 
> 
> 
> That way in sloppy conditions you have a "controlled " jibe. 
> 
> David F. Risch
> 1981 40-2
> (401) 419-4650 (cell)
> 
> 
> 
> 
> From: a.burton.sai...@gmail.com
> Date: Fri, 10 May 2013 10:16:35 -0400
> To: cnc-list@cnc-list.com
> 
> 
> Subject: Re: Stus-List Gybe preventer
> 
> Personally, I like to have one as close to the end of the boom as 
> possible--all the way from the end to the bow, if I'm running. Think about 
> the forces on the boom when the preventer stops an accidental gybe; they are 
> not straight down, which is how the boom is strongest. The forces are more 
> from the side (because the preventer is led forward to hold the boom in one 
> place), which is the weakest part of the boom. Another thing to consider is 
> that if at all possible, you should lead your preventer inside your lifelines 
> so you don't wipe out or bend a couple of stanchions if you gybe. All that 
> being said, it's kind of difficult to find a place near the end of the boom 
> if you don't have a loose-footed main so the preventer will probably be 
> attached at the mainsheet bail. 
> 
> 
> 
> 
> I use a preventer pretty much all he time my sheets are eased, even in light 
> stuff, a powerboat wake can cause the boom to swing into the back of a head. 
> I wouldn't go with anything too stretchy; Dacron is fine. I usually use a 
> single line from the boom to a block on the rail and back to a winch, so it's 
> easy to adjust when I trim the sails.
> 
> 
> 
> 
> 
> 
> Andy
> C&C 40
> Peregrine
> 
> 
> On Fri, May 10, 2013 at 8:56 AM, Joel Aronson <joel.aron...@gmail.com> wrote:
> 
> 
> 
> 
> The doctor who spoke at the Safety at Sea seminar said the #1 thing you can 
> do to prevent injury is to rig a gybe preventer.  My mainsheet sheets 
> mid-boom.  I know you need a rope with stretch to absorb shock.
> 
> 
> 
> 
> 
> I was thinking of making a preventer as follows:Dyneema loop around the boom 
> just aft of the mainsheet blocks.  3 strand nylon with snap shackles to 
> attach to the loop and toe rail.  Is that too simple?  Should it run through 
> a block to a cleat or clutch?
> 
> 
> 
> 
> 
> -- 
> Joel 35/3Annapolis
> 301 541 8551
> 
> 
> _______________________________________________
> 
> This List is provided by the C&C Photo Album
> 
> http://www.cncphotoalbum.com
> 
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> 
> 
> 
> 
> phone  +401 965 5260
> 
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com                          
> 
> _______________________________________________
> 
> This List is provided by the C&C Photo Album
> 
> http://www.cncphotoalbum.com
> 
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> 
> 
> phone  +401 965 5260
> 
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com                          
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> 
> ------------------------------
> 
> Message: 2
> Date: Fri, 10 May 2013 12:45:53 -0300
> From: dwight veinot <dwightvei...@hfx.eastlink.ca>
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> Message-ID: <6EBB07B912484708BD9AA1A932E30E7B@your4dacd0ea75>
> Content-Type: text/plain; charset="us-ascii"
> 
> I never thought of running the preventer all the way to the bow.  On my 35
> MKII which has a high aspect ratio main sail on a 12'3" boom I simply attach
> the preventer (my boom vang mostly) to the toe rail and tension with a
> mechanical advantage of 4.  C&C toe rails are strong enough for jib leads so
> I figured they would be strong enough for the preventer.  I have not sailed
> the boat in winds above 30-35 true but maybe under heavier conditions I
> would want a different set up, but actually nowadays for my sailing pleasure
> any winds above 25 kts true the main sail is packed and covered.  Never once
> did I feel boom integrity or any other attachment was at intolerable risk.
> 
> 
> 
> Dwight Veinot
> 
> C&C 35 MKII, Alianna
> 
> Head of St. Margaret's Bay, NS
> 
> 
> 
>  _____  
> 
> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew
> Burton
> Sent: May 10, 2013 12:33 PM
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> 
> 
> 
> One thing I've seen on boats that run a lot or have high, long booms, is a
> permanently rigged piece of Dynema attached at the end of the boom and run
> forward to the a snap-shackle at the gooseneck. That way it's easy to rig a
> preventer to the bow when the sheets are already eased; just release the
> line from the end of the boom and snap it to the preventer from the bow. If
> running to the bow, I will usually just run the preventer through the
> mooring line fairlead...with appropriate chafe protection if it's going to
> be rigged for more than a few hours.
> 
> Andy
> 
> C&C 40 
> Peregrine
> 
> 
> 
> On Fri, May 10, 2013 at 11:16 AM, David Risch <davidrisc...@msn.com> wrote:
> 
> Ditto what Andy said...
> 
> And when in ocean I run two preventers - port and starboard to the bow and
> back to cockpit winches.   All lines, blocks are of stout sizing.   Loads
> can be enormous.
> 
> That way in sloppy conditions you have a "controlled " jibe. 
> 
> David F. Risch
> 1981 40-2
> (401) <tel:%28401%29%20419-4650>  419-4650 (cell)
> 
> 
> 
>  _____  
> 
> From: a.burton.sai...@gmail.com
> Date: Fri, 10 May 2013 10:16:35 -0400
> 
> 
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> 
> Personally, I like to have one as close to the end of the boom as
> possible--all the way from the end to the bow, if I'm running. Think about
> the forces on the boom when the preventer stops an accidental gybe; they are
> not straight down, which is how the boom is strongest. The forces are more
> from the side (because the preventer is led forward to hold the boom in one
> place), which is the weakest part of the boom. Another thing to consider is
> that if at all possible, you should lead your preventer inside your
> lifelines so you don't wipe out or bend a couple of stanchions if you gybe.
> All that being said, it's kind of difficult to find a place near the end of
> the boom if you don't have a loose-footed main so the preventer will
> probably be attached at the mainsheet bail. 
> 
> I use a preventer pretty much all he time my sheets are eased, even in light
> stuff, a powerboat wake can cause the boom to swing into the back of a head.
> I wouldn't go with anything too stretchy; Dacron is fine. I usually use a
> single line from the boom to a block on the rail and back to a winch, so
> it's easy to adjust when I trim the sails.
> 
> 
> 
> Andy
> 
> C&C 40
> 
> Peregrine
> 
> 
> 
> On Fri, May 10, 2013 at 8:56 AM, Joel Aronson <joel.aron...@gmail.com>
> wrote:
> 
> The doctor who spoke at the Safety at Sea seminar said the #1 thing you can
> do to prevent injury is to rig a gybe preventer.  My mainsheet sheets
> mid-boom.  I know you need a rope with stretch to absorb shock.
> 
> 
> 
> I was thinking of making a preventer as follows:
> 
> Dyneema loop around the boom just aft of the mainsheet blocks.  3 strand
> nylon with snap shackles to attach to the loop and toe rail.  Is that too
> simple?  Should it run through a block to a cleat or clutch?
> 
> 
> 
> 
> -- 
> Joel 
> 
> 35/3
> 
> Annapolis
> 301 541 8551 
> 
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> phone  +401 965 5260 
> 
> 
> _______________________________________________ This List is provided by the
> C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
> 
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> phone  +401 965 5260 
> 
>  _____  
> 
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.2241 / Virus Database: 3162/5813 - Release Date: 05/10/13
> 
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> 
> ------------------------------
> 
> Message: 3
> Date: Fri, 10 May 2013 11:48:40 -0400
> From: Andrew Burton <a.burton.sai...@gmail.com>
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> Message-ID:
>    <cagafpmz+temwf8icmbg3svgm6nnr8o9dpzyynpwjv0uahzh...@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Really, David, Dacron is so 20th century.
> 
> 
> On Fri, May 10, 2013 at 11:39 AM, David Risch <davidrisc...@msn.com> wrote:
> 
>> Again Ditto.
>> 
>> I have the same arrangement.  It allows easy attachment/detachment on the
>> boat in a safe position in lieu of trying to secure at end of boom or at
>> the bow.   Mine also adjusts from boom.
>> 
>> Although I have low tech dacron, not the fancy smancy Dyneema...
>> 
>> 
>> David F. Risch
>> 1981 40-2
>> (401) 419-4650 (cell)
>> 
>> 
>> ------------------------------
>> From: a.burton.sai...@gmail.com
>> Date: Fri, 10 May 2013 11:32:55 -0400
>> 
>> To: cnc-list@cnc-list.com
>> Subject: Re: Stus-List Gybe preventer
>> 
>> One thing I've seen on boats that run a lot or have high, long booms, is a
>> permanently rigged piece of Dynema attached at the end of the boom and run
>> forward to the a snap-shackle at the gooseneck. That way it's easy to rig a
>> preventer to the bow when the sheets are already eased; just release the
>> line from the end of the boom and snap it to the preventer from the bow. If
>> running to the bow, I will usually just run the preventer through the
>> mooring line fairlead...with appropriate chafe protection if it's going to
>> be rigged for more than a few hours.
>> 
>> Andy
>> C&C 40
>> Peregrine
>> 
>> 
>> On Fri, May 10, 2013 at 11:16 AM, David Risch <davidrisc...@msn.com>wrote:
>> 
>> Ditto what Andy said...
>> 
>> And when in ocean I run two preventers - port and starboard to the bow and
>> back to cockpit winches.   All lines, blocks are of stout sizing.   Loads
>> can be enormous.
>> 
>> That way in sloppy conditions you have a "controlled " jibe.
>> 
>> David F. Risch
>> 1981 40-2
>> (401) 419-4650 (cell)
>> 
>> 
>> ------------------------------
>> From: a.burton.sai...@gmail.com
>> Date: Fri, 10 May 2013 10:16:35 -0400
>> 
>> To: cnc-list@cnc-list.com
>> Subject: Re: Stus-List Gybe preventer
>> 
>> Personally, I like to have one as close to the end of the boom as
>> possible--all the way from the end to the bow, if I'm running. Think about
>> the forces on the boom when the preventer stops an accidental gybe; they
>> are not straight down, which is how the boom is strongest. The forces are
>> more from the side (because the preventer is led forward to hold the boom
>> in one place), which is the weakest part of the boom. Another thing to
>> consider is that if at all possible, you should lead your preventer inside
>> your lifelines so you don't wipe out or bend a couple of stanchions if you
>> gybe. All that being said, it's kind of difficult to find a place near the
>> end of the boom if you don't have a loose-footed main so the preventer will
>> probably be attached at the mainsheet bail.
>> I use a preventer pretty much all he time my sheets are eased, even in
>> light stuff, a powerboat wake can cause the boom to swing into the back of
>> a head. I wouldn't go with anything too stretchy; Dacron is fine. I usually
>> use a single line from the boom to a block on the rail and back to a winch,
>> so it's easy to adjust when I trim the sails.
>> 
>> 
>> Andy
>> C&C 40
>> Peregrine
>> 
>> 
>> On Fri, May 10, 2013 at 8:56 AM, Joel Aronson <joel.aron...@gmail.com>wrote:
>> 
>> The doctor who spoke at the Safety at Sea seminar said the #1 thing you
>> can do to prevent injury is to rig a gybe preventer.  My mainsheet sheets
>> mid-boom.  I know you need a rope with stretch to absorb shock.
>> 
>> I was thinking of making a preventer as follows:
>> Dyneema loop around the boom just aft of the mainsheet blocks.  3 strand
>> nylon with snap shackles to attach to the loop and toe rail.  Is that too
>> simple?  Should it run through a block to a cleat or clutch?
>> 
>> --
>> Joel
>> 35/3
>> Annapolis
>> 301 541 8551
>> 
>> _______________________________________________
>> This List is provided by the C&C Photo Album
>> http://www.cncphotoalbum.com
>> CnC-List@cnc-list.com
>> 
>> 
>> 
>> 
>> --
>> Andrew Burton
>> 61 W Narragansett Ave
>> Newport, RI
>> USA 02840
>> http://sites.google.com/site/andrewburtonyachtservices/
>> phone  +401 965 5260
>> 
>> _______________________________________________ This List is provided by
>> the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
>> 
>> _______________________________________________
>> This List is provided by the C&C Photo Album
>> http://www.cncphotoalbum.com
>> CnC-List@cnc-list.com
>> 
>> 
>> 
>> 
>> --
>> Andrew Burton
>> 61 W Narragansett Ave
>> Newport, RI
>> USA 02840
>> http://sites.google.com/site/andrewburtonyachtservices/
>> phone  +401 965 5260
>> 
>> _______________________________________________ This List is provided by
>> the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
>> 
>> _______________________________________________
>> This List is provided by the C&C Photo Album
>> http://www.cncphotoalbum.com
>> CnC-List@cnc-list.com
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> phone  +401 965 5260
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: 
> <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20130510/9cea6508/attachment-0001.html>
> 
> ------------------------------
> 
> Message: 4
> Date: Fri, 10 May 2013 11:51:10 -0400
> From: David Risch <davidrisc...@msn.com>
> To: CNC CNC <cnc-list@cnc-list.com>
> Subject: Re: Stus-List Gybe preventer
> Message-ID: <blu174-w7e8ca20ccedd3953978d3da...@phx.gbl>
> Content-Type: text/plain; charset="windows-1252"
> 
> Dwight,
> 
> For local conditions you are mostly good.  In fact I just snap shackle my 
> boom line to rail and adjust from boom when bopping around in relatively 
> benign conditions.
> 
> Its when you are offshore, or in heavy local conditions,  when waves are 
> piling up and the boom can be stuffed into a wave (loading up mid-boom 
> sheeting and breaking boom/gear etc.) or an uncontrollable jibe sets up loads 
> that would tax the "to rail" set-up. The angles are too acute versus going to 
> the bow.  
> 
> Its never the dang wind that causes problems...its those pesky waves.
> 
> David F. Risch
> 1981 40-2
> (401) 419-4650 (cell)
> 
> 
> From: dwightvei...@hfx.eastlink.ca
> To: cnc-list@cnc-list.com
> Date: Fri, 10 May 2013 12:45:53 -0300
> Subject: Re: Stus-List Gybe preventer
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> I never thought of running the preventer
> all the way to the bow.  On my 35 MKII which has a high aspect ratio main sail
> on a 12?3? boom I simply attach the preventer (my boom vang mostly)
> to the toe rail and tension with a mechanical advantage of 4.  C&C toe
> rails are strong enough for jib leads so I figured they would be strong enough
> for the preventer.  I have not sailed the boat in winds above 30-35 true but
> maybe under heavier conditions I would want a different set up, but actually
> nowadays for my sailing pleasure any winds above 25 kts true the main sail is
> packed and covered.  Never once did I feel boom integrity or any other
> attachment was at intolerable risk.
> 
> 
> 
> 
> 
> Dwight Veinot
> 
> C&C 35 MKII, Alianna
> 
> Head of St. Margaret's Bay, NS
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> From: CnC-List
> [mailto:cnc-list-boun...@cnc-list.com] On
> Behalf Of Andrew Burton
> 
> Sent: May 10, 2013 12:33 PM
> 
> To: cnc-list@cnc-list.com
> 
> Subject: Re: Stus-List Gybe
> preventer
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> One thing I've seen on boats that run a lot or have
> high, long booms, is a permanently rigged piece of Dynema attached at the end
> of the boom and run forward to the a snap-shackle at the gooseneck. That way
> it's easy to rig a preventer to the bow when the sheets are already eased; 
> just
> release the line from the end of the boom and snap it to the preventer from 
> the
> bow. If running to the bow, I will usually just run the preventer through the
> mooring line fairlead...with appropriate chafe protection if it's going to be
> rigged for more than a few hours.
> 
> 
> 
> Andy
> 
> 
> 
> C&C 40 
> 
> Peregrine
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Fri, May 10, 2013 at
> 11:16 AM, David Risch <davidrisc...@msn.com>
> wrote:
> 
> 
> 
> 
> 
> Ditto what Andy said...
> 
> 
> 
> And when in ocean I run two preventers - port and starboard to the bow and 
> back
> to cockpit winches.   All lines, blocks are of stout sizing.  
> Loads can be enormous.
> 
> 
> 
> That way in sloppy conditions you have a "controlled " jibe. 
> 
> 
> 
> David F. Risch
> 
> 1981 40-2
> 
> (401)
> 419-4650 (cell)
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> From: a.burton.sai...@gmail.com
> 
> Date: Fri, 10 May 2013 10:16:35 -0400
> 
> 
> 
> 
> 
> To: cnc-list@cnc-list.com
> 
> Subject: Re: Stus-List Gybe preventer
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Personally, I like to
> have one as close to the end of the boom as possible--all the way from the end
> to the bow, if I'm running. Think about the forces on the boom when the
> preventer stops an accidental gybe; they are not straight down, which is how
> the boom is strongest. The forces are more from the side (because the 
> preventer
> is led forward to hold the boom in one place), which is the weakest part of 
> the
> boom. Another thing to consider is that if at all possible, you should lead
> your preventer inside your lifelines so you don't wipe out or bend a couple of
> stanchions if you gybe. All that being said, it's kind of difficult to find a
> place near the end of the boom if you don't have a loose-footed main so the
> preventer will probably be attached at the mainsheet bail. 
> 
> 
> 
> I use a preventer pretty much all he time my sheets
> are eased, even in light stuff, a powerboat wake can cause the boom to swing
> into the back of a head. I wouldn't go with anything too stretchy; Dacron is
> fine. I usually use a single line from the boom to a block on the rail and 
> back
> to a winch, so it's easy to adjust when I trim the sails.
> 
> 
> 
> 
> 
> 
> 
> Andy
> 
> 
> 
> C&C 40
> 
> 
> 
> Peregrine
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Fri, May 10, 2013 at
> 8:56 AM, Joel Aronson <joel.aron...@gmail.com> wrote:
> 
> 
> 
> The doctor who spoke at
> the Safety at Sea seminar said the #1 thing you can do to prevent injury is to
> rig a gybe preventer.  My mainsheet sheets mid-boom.  I know you need
> a rope with stretch to absorb shock.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> I was thinking of making
> a preventer as follows:
> 
> 
> 
> 
> 
> Dyneema loop around the
> boom just aft of the mainsheet blocks.  3 strand nylon with snap shackles
> to attach to the loop and toe rail.  Is that too simple?  Should it
> run through a block to a cleat or clutch?
> 
> 
> 
> 
> 
> 
> 
> 
> -- 
> 
> Joel 
> 
> 
> 
> 
> 
> 35/3
> 
> 
> 
> 
> 
> Annapolis
> 
> 301 541 8551 
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
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> 
> 
> -- 
> 
> Andrew Burton
> 
> 61 W Narragansett Ave
> 
> Newport, RI
> 
> USA
> 02840
> 
> http://sites.google.com/site/andrewburtonyachtservices/
> 
> phone  +401 965 5260 
> 
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> 
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> 
> 
> -- 
> 
> Andrew Burton
> 
> 61 W Narragansett Ave
> 
> Newport, RI
> 
> USA
> 02840
> 
> http://sites.google.com/site/andrewburtonyachtservices/
> 
> phone  +401 965 5260 
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> ------------------------------
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> Message: 5
> Date: Fri, 10 May 2013 11:52:41 -0400
> From: Joel Aronson <joel.aron...@gmail.com>
> To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
> Subject: Re: Stus-List Gybe preventer
> Message-ID: <-5666490872717239406@unknownmsgid>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Thanks guys!  I could make a bridle that runs through the 3 rings that that
> the mainsheet blocks attach to to spread the load. You guys are awesome!
> 
> Joel Aronson
> 
> 
> On May 10, 2013, at 11:40 AM, David Risch <davidrisc...@msn.com> wrote:
> 
> Again Ditto.
> 
> I have the same arrangement. It allows easy attachment/detachment on the
> boat in a safe position in lieu of trying to secure at end of boom or at
> the bow.   Mine also adjusts from boom.
> 
> Although I have low tech dacron, not the fancy smancy Dyneema...
> 
> David F. Risch
> 1981 40-2
> (401) 419-4650 (cell)
> 
> 
> ------------------------------
> From: a.burton.sai...@gmail.com
> Date: Fri, 10 May 2013 11:32:55 -0400
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> 
> One thing I've seen on boats that run a lot or have high, long booms, is a
> permanently rigged piece of Dynema attached at the end of the boom and run
> forward to the a snap-shackle at the gooseneck. That way it's easy to rig a
> preventer to the bow when the sheets are already eased; just release the
> line from the end of the boom and snap it to the preventer from the bow. If
> running to the bow, I will usually just run the preventer through the
> mooring line fairlead...with appropriate chafe protection if it's going to
> be rigged for more than a few hours.
> 
> Andy
> C&C 40
> Peregrine
> 
> 
> On Fri, May 10, 2013 at 11:16 AM, David Risch <davidrisc...@msn.com> wrote:
> 
> Ditto what Andy said...
> 
> And when in ocean I run two preventers - port and starboard to the bow and
> back to cockpit winches.   All lines, blocks are of stout sizing.   Loads
> can be enormous.
> 
> That way in sloppy conditions you have a "controlled " jibe.
> 
> David F. Risch
> 1981 40-2
> (401) 419-4650 (cell)
> 
> 
> ------------------------------
> From: a.burton.sai...@gmail.com
> Date: Fri, 10 May 2013 10:16:35 -0400
> 
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Gybe preventer
> 
> Personally, I like to have one as close to the end of the boom as
> possible--all the way from the end to the bow, if I'm running. Think about
> the forces on the boom when the preventer stops an accidental gybe; they
> are not straight down, which is how the boom is strongest. The forces are
> more from the side (because the preventer is led forward to hold the boom
> in one place), which is the weakest part of the boom. Another thing to
> consider is that if at all possible, you should lead your preventer inside
> your lifelines so you don't wipe out or bend a couple of stanchions if you
> gybe. All that being said, it's kind of difficult to find a place near the
> end of the boom if you don't have a loose-footed main so the preventer will
> probably be attached at the mainsheet bail.
> I use a preventer pretty much all he time my sheets are eased, even in
> light stuff, a powerboat wake can cause the boom to swing into the back of
> a head. I wouldn't go with anything too stretchy; Dacron is fine. I usually
> use a single line from the boom to a block on the rail and back to a winch,
> so it's easy to adjust when I trim the sails.
> 
> 
> Andy
> C&C 40
> Peregrine
> 
> 
> On Fri, May 10, 2013 at 8:56 AM, Joel Aronson <joel.aron...@gmail.com>wrote:
> 
> The doctor who spoke at the Safety at Sea seminar said the #1 thing you can
> do to prevent injury is to rig a gybe preventer.  My mainsheet sheets
> mid-boom.  I know you need a rope with stretch to absorb shock.
> 
> I was thinking of making a preventer as follows:
> Dyneema loop around the boom just aft of the mainsheet blocks.  3 strand
> nylon with snap shackles to attach to the loop and toe rail.  Is that too
> simple?  Should it run through a block to a cleat or clutch?
> 
> -- 
> Joel
> 35/3
> Annapolis
> 301 541 8551
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> phone  +401 965 5260
> 
> _______________________________________________ This List is provided by
> the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
> 
> _______________________________________________
> This List is provided by the C&C Photo Album
> http://www.cncphotoalbum.com
> CnC-List@cnc-list.com
> 
> 
> 
> 
> -- 
> Andrew Burton
> 61 W Narragansett Ave
> Newport, RI
> USA 02840
> http://sites.google.com/site/andrewburtonyachtservices/
> phone  +401 965 5260
> 
> _______________________________________________ This List is provided by
> the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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