[Public-List] Bulkheads

[Jason S via Public-List]

Very noticeable on a dark hulled boat. Mine wasn't too bad...alberg 30 3
slips down was very noticeable....both were dark blue hulls.
On Feb 7, 2016 4:51 PM, "George Dinwiddie via Public-List" <
public-list at lists.alberg30.org> wrote:

> Chip, I've just looked through a bunch of photos, but haven't found one
> that shows the dimple. It doesn't photograph well. You need to get the
> light at the right angle to see the disturbance in the reflection on the
> hull.
>
>  - George
>
> On 2/7/16 3:50 PM, Chip Dance via Public-List wrote:
>
>> George,
>> It is difficult for me to visualize the twisted knees and dimples. I've
>> looked through many of the pictures in the gallery, but haven't seen
>> anything that looks like what you are describing. Could you point me
>> towards one?
>>
>> Thanks
>> Chip
>>
>> On Sun, Feb 7, 2016 at 1:42 PM, George Dinwiddie via Public-List <
>> public-list at lists.alberg30.org> wrote:
>>
>> Yeah, that too. The shelf should be a stiffener. The shroud pulling the
>>> inboard edge of the knee upward until it hits the deck causes a
>>> significant
>>> inward pull on the lower part of the knee, causing it to rotate if it's
>>> allowed.
>>>
>>>   - George
>>>
>>>
>>> On 2/7/16 3:36 PM, Mike Lehman via Public-List wrote:
>>>
>>> I have found that the dimples in the sides of the hull at the forward
>>>> lowers in the liner boats (which is quite noticeable when you sight down
>>>> the cove stripe), is due to the fact that the shelves in the forward
>>>> cabin were not glassed to the hull (like they were in the older boats),
>>>> rather they were pop-riveted to a horizontal flange. I removed my
>>>> forward shelves in a collision with another Alberg so I had to reinstall
>>>> them. I did so by relieving the tension on the forward lowers and then
>>>> pushed the hull back out to the original position and then glassed in
>>>> the forward shelves. These are secondary structural members and help to
>>>> support the knees and the hull.
>>>>
>>>> -----Original Message----- From: George Dinwiddie via Public-List
>>>> Sent: Saturday, February 06, 2016 9:57 PM
>>>> To: Chip Dance ; Alberg 30 Public List -- open to all
>>>> Subject: Re: [Public-List] Bulkheads
>>>>
>>>> Chip,
>>>>
>>>> If you look at most newer boats, there are dimples in the topsides where
>>>> the knees are attached. This is due to the knees not being flush with
>>>> the underside of the deck, and as the chainplate pulls the knee up, it
>>>> rotates slightly and pulls the hull inwards.
>>>>
>>>> I think it would be best if the knee were flush with the underside of
>>>> the deck. I've thought about inserting shims, but have never done so.
>>>>
>>>>    - George #543
>>>>
>>>> On 2/6/16 7:26 PM, Chip Dance via Public-List wrote:
>>>>
>>>> I think someone, earlier in this thread, mentioned the knees
>>>>> supporting the
>>>>> deck (or something along those lines). I'm curious about this. on #456
>>>>> it
>>>>> appears as though there was a liner around the knees that was cut out
>>>>> by a
>>>>> PO, but from what I can tell, the knees don't appear to ever have been
>>>>> in
>>>>> contact with the deck, or even the liner. Can anyone shed some light on
>>>>> this for me?
>>>>> Since I will be rebuilding the knees, is there any concern with
>>>>> tabbing the
>>>>> knees to the underside of the deck? Is flexibility between the deck &
>>>>> the
>>>>> hull a necessity?
>>>>>
>>>>> The link below shows a photo of what I'm talking about.
>>>>>
>>>>> https://www.dropbox.com/s/erhr89fwfju6ikm/SAM_0896.JPG?dl=0
>>>>>
>>>>> Thoughts?
>>>>>
>>>>> Chip
>>>>> #456
>>>>>
>>>>>
>>>>
>>>> --
>>>   ----------------------------------------------------------------------
>>>    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
>>>   ----------------------------------------------------------------------
>>>
>>>
>>>
>>> _______________________________________________
>>> These businesses support your Association:
>>> http://www.alberg30.org/store/A30supporters.html
>>> Please support them.
>>> _______________________________________________
>>> Public-List mailing list
>>> Public-List at lists.alberg30.org
>>> http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
>>>
>>> _______________________________________________
>> These businesses support your Association:
>> http://www.alberg30.org/store/A30supporters.html
>> Please support them.
>> _______________________________________________
>> Public-List mailing list
>> Public-List at lists.alberg30.org
>> http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
>>
>>
> --
>  ----------------------------------------------------------------------
>   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
>  ----------------------------------------------------------------------
>
>
>
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
> _______________________________________________
> Public-List mailing list
> Public-List at lists.alberg30.org
> http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
>