[Public-List] mast beam repair

[C.B. Currier]

I knew bruce did some great things but this sister configuration is really
a simple build-up and I believe was originally done (not engineered) but
templated from cardboard cut to the shape of a where a piece of aluminum
would fit on either side of the beam. Then this template was taken to
Wash. Aluminum and they water jetted the piece.

Now I have to say that f you wished to do your own pieces - you could
probably do them for less than $100 by buying a scrap piece of 1/4"
Aluminum plate and making templates & cutting it yourself. It would look
as nice as the job Wash Alum does ... if not better. They quoted me
ridiculous prices for buying the window frames from them ... so I made my
own and those came out wonderfully! Just need a Jigsaw and wood blades -
not bi-metal. follow the pattern and you'll be done in 2 hours.

-- 
C.B. Currier
Infinity #57

Don Campbell wrote:
> Charles:
>     Materials are always cheap. These plate's design  are engineered by
> Bruce Rankin and no-one should give you plans these plates without a
> $500 fee for the engineering if you decide you want to make them
> yourself. Otherwise, go ahead and make your own without the pattern.
> $420 is really quite cheap for what you get unless you know how to
> resolve all the forces from all the rigging.
> Don #528
>
>
> bikecharles wrote:
>> Thanks to all who provided input on my last inquiry about the mast beam.
>>  I'm still pondering the best approach to repair the mast beam on Sea
>> Hawk #221.  I've contacted the outfit mentioned on the A30 website about
>> the Aluminum Sister Plates for the mast beam.  They've become a bit
>> pricey these days...$420.00 before shipping.  Considering the simplicity
>> of the repair and the relatively low cost of the raw materials, (about
>> $145.00 for for the Aluminum),it would make sense to fabricate them
>> myself.  Does anybody know of an existing pattern or schematic for the
>> plates.  Additionally, I was curious if those that have done this repair
>> removed, repaired or did anything to the old tabbing on the beam or is
>> it just left and covered?
>> Thanks again
>> Charles
>> Sea Hawk #221
>> _______________________________________________
>> 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
>


 1262807592.0