[Public-List] [EXTERNAL] Public-List Digest, Vol 3920, Issue 2

Greenhouse, Matthew A. (GSFC-6650) matt.greenhouse at nasa.gov
Mon Sep 16 13:24:07 PDT 2019 

Andrew -- It is much better to go with aluminum spreaders and new brackets. The original stika spruce spreaders require annual maintenance. Although this doesn't require taking the mast down, keeping up with varnishing or painting them is very inconvenient.   

Cheers,
Matt
Friendship 295

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Today's Topics:

   1. Re: Spreaders (Glenn Brooks)
   2. Re: Spreaders (Gordon Laco)
   3. Re: Spreaders (Marcelo D. Gentinetta)


----------------------------------------------------------------------

Message: 1
Date: Mon, 16 Sep 2019 08:47:12 -0700
From: Glenn Brooks <brooks.glenn at comcast.net>
To: Alberg 30 Public List -- open to all
	<public-list at lists.alberg30.org>
Subject: Re: [Public-List] Spreaders
Message-ID: <78003CF5-EAA5-49ED-A311-16CA17E0C7F1 at comcast.net>
Content-Type: text/plain;	charset=us-ascii

I had a rigger retrofit new spreaders and brackets. Coat around $125 a couple of years ago.

Sent from my iPad

> On Sep 16, 2019, at 6:59 AM, Andrew Johns via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Hi,
> 
> We are getting our boat ready for some extended cruising, with some 
> offshore passages in our future.
> 
> I a few years ago I replaced the original wood spreaders with epoxy 
> laminated white oak.  At the same time, I had cracks welded up in the 
> cast aluminum spreader bracket, where the upper flange meets the main 
> portion of the casting.  I'm unsure if that was from overtightening or fatigue.
> 
> What is the group's consensus on the original wood spreader design?
> Considering our use, I'm unsure if we should stick to the original 
> design, reinforce the original design, or retrofit an aluminum spreader?
> 
> What have others done?
> 
> Thanks,
> Andrew
> #104
> _______________________________________________
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------------------------------

Message: 2
Date: Mon, 16 Sep 2019 11:55:20 -0400
From: Gordon Laco <mainstay at csolve.net>
To: Alberg 30 Public List -- open to all
	<public-list at lists.alberg30.org>
Subject: Re: [Public-List] Spreaders
Message-ID: <750D5D69-4B5A-4471-83EF-BF7406A95C79 at csolve.net>
Content-Type: text/plain;	charset=utf-8

Hello Andrew - 

Surprise has wooden spreaders? they are immensely strong provided they?re looked after.  The originals were white oak set into substantial aluminium box section sockets? 45 years on one of them rotted inside the socket.

For the repair I made a new pair of solid white oak, and discarded the sockets were are an unnecessary complication and of course bound to develop rot inside.

I armoured the inboard ends only with epoxy and cloth, then drilled oversized holes for the four mounting bolts.  I filled the holes with epoxy mixed with fibre.   I then drilled correctly sized holes (3/8? I think) down the centres, the result being mounting holes completely armoured with epoxy/fibre sleeves.  There is nowhere water can get into the end grain of the wood.

I varnished the spreaders, but painted the inner 6? where the epoxy/cloth was.   Why varnish? So that I could see what was happening with regard to the integrity of the wood.  Why paint on the inner ends?  To provide an absolutely UV proof coating to protect the epoxy.  Why not put epoxy over the whole spreader?  Because that needlessly complicates the varnish job without adding anything to the integrity of the finish.

Many classic yachts have white paint on the upper surfaces of their spreaders? nobody can see that part so why not?  I will do that some day, but for now they?re varnished all around.

Cheers?
 
Gordon Laco
#426 Surprise




> On Sep 16, 2019, at 11:47 AM, Glenn Brooks via Public-List <public-list at lists.alberg30.org> wrote:
> 
> I had a rigger retrofit new spreaders and brackets. Coat around $125 a couple of years ago.
> 
> Sent from my iPad
> 
>> On Sep 16, 2019, at 6:59 AM, Andrew Johns via Public-List <public-list at lists.alberg30.org> wrote:
>> 
>> Hi,
>> 
>> We are getting our boat ready for some extended cruising, with some 
>> offshore passages in our future.
>> 
>> I a few years ago I replaced the original wood spreaders with epoxy 
>> laminated white oak.  At the same time, I had cracks welded up in the 
>> cast aluminum spreader bracket, where the upper flange meets the main 
>> portion of the casting.  I'm unsure if that was from overtightening or fatigue.
>> 
>> What is the group's consensus on the original wood spreader design?
>> Considering our use, I'm unsure if we should stick to the original 
>> design, reinforce the original design, or retrofit an aluminum spreader?
>> 
>> What have others done?
>> 
>> Thanks,
>> Andrew
>> #104
>> _______________________________________________
>> These businesses support your Association:
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.alberg30.org_
>> store_A30supporters.html&d=DwICAg&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN9k
>> iMk5Csz9Zk&r=E8am16u4UMclZ2k1VCTqTFySgI54UVmSspvx_dDyxSVZNVy2G1wppYfO
>> SwOF0blO&m=wDYfWlwx95b6lmsIIpXvGLM5XzZ5wmlC8JRZnmqKfcw&s=Xbiadd1iSLIp
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>> Please support them.
>> _______________________________________________
>> Public-List mailing list
>> Public-List at lists.alberg30.org
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> 
> _______________________________________________
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------------------------------

Message: 3
Date: Mon, 16 Sep 2019 13:42:49 -0500
From: "Marcelo D. Gentinetta" <vanguard64 at cox.net>
To: Alberg 30 Public List -- open to all
	<public-list at lists.alberg30.org>
Subject: Re: [Public-List] Spreaders
Message-ID: <6761EF1A-DB76-4000-9AD0-6513FD3A71DC at cox.net>
Content-Type: text/plain;	charset=utf-8

I have round aluminum spreaders on mine. Here on the Gulf coast with the boat in the water year round and exposed to high heat and humidity, I rather the aluminum. On my previous boat, a Pearson Vanguard, we broke a wooden spreader out on the Gulf in a squall and had to limp back home. I don?t blame the wooden spreader but myself for not inspecting it more regularly but replaced it with an aluminum one anyway.
Marcelo
#441

> On Sep 16, 2019, at 10:55 AM, Gordon Laco via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Hello Andrew -
> 
> Surprise has wooden spreaders? they are immensely strong provided they?re looked after.  The originals were white oak set into substantial aluminium box section sockets? 45 years on one of them rotted inside the socket.
> 
> For the repair I made a new pair of solid white oak, and discarded the sockets were are an unnecessary complication and of course bound to develop rot inside.
> 
> I armoured the inboard ends only with epoxy and cloth, then drilled oversized holes for the four mounting bolts.  I filled the holes with epoxy mixed with fibre.   I then drilled correctly sized holes (3/8? I think) down the centres, the result being mounting holes completely armoured with epoxy/fibre sleeves.  There is nowhere water can get into the end grain of the wood.
> 
> I varnished the spreaders, but painted the inner 6? where the epoxy/cloth was.   Why varnish? So that I could see what was happening with regard to the integrity of the wood.  Why paint on the inner ends?  To provide an absolutely UV proof coating to protect the epoxy.  Why not put epoxy over the whole spreader?  Because that needlessly complicates the varnish job without adding anything to the integrity of the finish.
> 
> Many classic yachts have white paint on the upper surfaces of their spreaders? nobody can see that part so why not?  I will do that some day, but for now they?re varnished all around.
> 
> Cheers?
> 
> Gordon Laco
> #426 Surprise
> 
> 
> 
> 
>> On Sep 16, 2019, at 11:47 AM, Glenn Brooks via Public-List <public-list at lists.alberg30.org> wrote:
>> 
>> I had a rigger retrofit new spreaders and brackets. Coat around $125 a couple of years ago.
>> 
>> Sent from my iPad
>> 
>>> On Sep 16, 2019, at 6:59 AM, Andrew Johns via Public-List <public-list at lists.alberg30.org> wrote:
>>> 
>>> Hi,
>>> 
>>> We are getting our boat ready for some extended cruising, with some 
>>> offshore passages in our future.
>>> 
>>> I a few years ago I replaced the original wood spreaders with epoxy 
>>> laminated white oak.  At the same time, I had cracks welded up in 
>>> the cast aluminum spreader bracket, where the upper flange meets the 
>>> main portion of the casting.  I'm unsure if that was from overtightening or fatigue.
>>> 
>>> What is the group's consensus on the original wood spreader design?
>>> Considering our use, I'm unsure if we should stick to the original 
>>> design, reinforce the original design, or retrofit an aluminum spreader?
>>> 
>>> What have others done?
>>> 
>>> Thanks,
>>> Andrew
>>> #104
>>> _______________________________________________
>>> These businesses support your Association:
>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.alberg30.org
>>> _store_A30supporters.html&d=DwICAg&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN
>>> 9kiMk5Csz9Zk&r=E8am16u4UMclZ2k1VCTqTFySgI54UVmSspvx_dDyxSVZNVy2G1wpp
>>> YfOSwOF0blO&m=wDYfWlwx95b6lmsIIpXvGLM5XzZ5wmlC8JRZnmqKfcw&s=Xbiadd1i
>>> SLIpTxCqPedK1LfAw93VrjvfkGcOEsPHKak&e=
>>> Please support them.
>>> _______________________________________________
>>> Public-List mailing list
>>> Public-List at lists.alberg30.org
>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.alberg30.o
>>> rg_listinfo.cgi_public-2Dlist-2Dalberg30.org&d=DwICAg&c=ApwzowJNAKKw
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>>> ZnmqKfcw&s=3g3yOISZRJVvkPi7J380aoh8jxL4rQZsLx3jIsIqaok&e=
>> 
>> _______________________________________________
>> These businesses support your Association:
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.alberg30.org_
>> store_A30supporters.html&d=DwICAg&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN9k
>> iMk5Csz9Zk&r=E8am16u4UMclZ2k1VCTqTFySgI54UVmSspvx_dDyxSVZNVy2G1wppYfO
>> SwOF0blO&m=wDYfWlwx95b6lmsIIpXvGLM5XzZ5wmlC8JRZnmqKfcw&s=Xbiadd1iSLIp
>> TxCqPedK1LfAw93VrjvfkGcOEsPHKak&e=
>> Please support them.
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>> Public-List mailing list
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>> Kfcw&s=3g3yOISZRJVvkPi7J380aoh8jxL4rQZsLx3jIsIqaok&e=
> 
> _______________________________________________
> These businesses support your Association:
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