[Public-List] Mast Support Beam

Wes Gardner via Public-List public-list at lists.alberg30.org
Mon Feb 8 14:07:40 PST 2016


Hi All,

>From what I can tell, the entire deck deflected...there MAY be some
compression of the core, but it doesn't seem so...that ole Masonite may
still be OK.  Everything around it is DRY.  In fact, my entire boat is dry
(except for the cockpit sole).  Around my chainplates, I dug out some sort
of cotton-like material...totally dry!!!

I'm not Irish so I can't really claim their luck :-) but somehow things
have remained dry...my boat has never been raced - no pole gear, no
pole...maybe non-spin at some point boat the wear and tear just isn't
there...

Wes

On Mon, Feb 8, 2016 at 4:47 PM, George Dinwiddie via Public-List <
public-list at lists.alberg30.org> wrote:

> Jason,
>
> You have a balsa core and Wes' boat has a masonite core. The masonite is
> heavier, but doesn't seem to rot the same way that the balsa does.
>
>  - George
>    Calypso, #543
>
>
> On 2/8/16 3:35 PM, Jason S via Public-List wrote:
>
>> Wes,
>>
>> I believe Mike is correct, guy who installed plates didn't fix it
>> properly.
>> That does not mean that it is sound now. You cannot just change the shape
>> of the orginal deck shape and lamination and assume it ok. In order for
>> the
>> deck to deform like that some integrity had to be lost, something had to
>> give or else it would have maintained it's shape.
>>
>> When I removed my mast step and top layer and all the rotten core I could
>> see where the bottom of the core had delaminated when it had become
>> distorted. Probably well before core turned completely rotten. You'd be
>> surprised at how well the fiberglass is adhered to wet core...that balsa
>> is
>> some strong stuff.
>>
>> Will it ever be an issue....I am not sure anyone can say 100%. These boats
>> get older each year....things that haven't been a problem may start
>> showing
>> their age and will eventually need to be addressed.
>>
>> I still believe that some of the issue has to do with the fact that the
>> mast and mast step is not sitting centered on the beam.
>>
>> Jason
>> #457
>> On Feb 8, 2016 3:15 PM, "Wes Gardner via Public-List" <
>> public-list at lists.alberg30.org> wrote:
>>
>> Hi Mike,
>>>
>>> That my friend is EXACTLY the answer I wanted to hear!!  I could tell by
>>> the caulk that things hadn't moved much (if at all) since that repair had
>>> been done.
>>>
>>> Thank you for verifying my observations.  I do intend to clean up some of
>>> those on-deck fittings - one isn't even used anymore...
>>>
>>> Wes
>>>
>>> On Mon, Feb 8, 2016 at 3:08 PM, Mike Lehman <sail_505 at hotmail.com>
>>> wrote:
>>>
>>> Wes,
>>>>
>>>> You beam looks fine. The compression you are seeing is from before the
>>>> beam was reinforced. Whoever did the aluminum reinforcement plates,
>>>>
>>> didn't
>>>
>>>> crank the beam all the way up to take out the deflection. But it won't
>>>>
>>> move
>>>
>>>> with those plates in place.
>>>>
>>>> -----Original Message----- From: Wes Gardner via Public-List
>>>> Sent: Monday, February 08, 2016 12:53 PM
>>>> To: public-list at lists.alberg30.org
>>>> Subject: [Public-List] Mast Support Beam
>>>>
>>>> Hi All,
>>>>
>>>> My boat is a non-liner boat #196.  The mast support beam has been
>>>> reinforced with aluminum plate on both sides of the beam.  Looking at
>>>> the
>>>> photo that looks forward, there IS a flat spot in the cabin top.  I’m
>>>> not
>>>> sure whether I’m concerned about it or not.  In that same photo, there
>>>>
>>> are
>>>
>>>> four nuts that hold a fairly substantial pad-eye plate near the base of
>>>>
>>> the
>>>
>>>> mast.  You can see the pad eye with a single Harken block in the photo
>>>> of
>>>> the mast base.  If I eye-ball one against the other, it tells me my mast
>>>>
>>> is
>>>
>>>> resting fairly square on the beam (meaning it’s not too far forward or
>>>> aft.)  Also when I “sound” with my plastic hammer, everything is rock
>>>>
>>> solid
>>>
>>>> as far as the core is concerned.  The other photo of the reinforcing
>>>>
>>> plate
>>>
>>>> looking aft, although it’s not pretty, there are no leaks.
>>>>
>>>> I think I’m content to leave things alone.  Any comments and/or
>>>>
>>> suggestions
>>>
>>>> are always welcome.
>>>>
>>>> https://www.dropbox.com/s/1nbw95vyxmuxify/Mast%20Support%20Beam.jpg?dl=0
>>>> https://www.dropbox.com/s/7nat262in0euf3w/Mast%20Base.jpg?dl=0
>>>>
>>>>
>>>>
>>> https://www.dropbox.com/s/q8hsrt2m5603vy6/Mast%20Support%20Fwd%20Side.jpg?dl=0
>>>
>>>>
>>>>
>>>> Wes #196 Griffin’s Faith
>>>>
>>>
> --
>  ----------------------------------------------------------------------
>   When I remember bygone days                         George Dinwiddie
>   I think how evening follows morn;            gdinwiddie at alberg30.org
>   So many I loved were not yet dead,           http://www.Alberg30.org
>   So many I love were not yet born.                          also see:
>                'The Middle' by Ogden Nash     http://idiacomputing.com
>  ----------------------------------------------------------------------
>
>
>
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