Re: [bolger] keel
At 12:52 8/06/00 -0000, you wrote:
R
>greetings,Yes. Read George Buehler's book.
>can concrete be used instead of cast iron or lead for castiong a
>keel.any ideas?
>
R
I wonder if you could have a business that just casted Micro keels and
custom masts....
Shipping would kill you... <grin>
custom masts....
Shipping would kill you... <grin>
----- Original Message -----
From: "GHC" <ghartc@...>
To: <bolger@egroups.com>
Sent: Thursday, June 08, 2000 11:57 AM
Subject: Re: [bolger] keel
> Another idea - I cast my Micro keel of lead shot and resin. You get maybe
> 60-70% density, something to bear in mind.
>
> Gregg Carlson
>
> At 08:39 AM 6/8/2000 -0500, you wrote:
> >sure. anthing denser than water can be used in the keel (and water can be
> >used in tanks inside the boat)
> >
> >The higher the density of the material, the less volume you need for your
> >keel.
> >
> >I've cast small amounts of lead, not really a big deal.
> >----- Original Message -----
> >From: <fung42@...>
> >To: <bolger@egroups.com>
> >Sent: Thursday, June 08, 2000 7:52 AM
> >Subject: [bolger] keel
> >
> >
> >> greetings,
> >> can concrete be used instead of cast iron or lead for castiong a
> >> keel.any ideas?
> >>
> >>
>
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Another idea - I cast my Micro keel of lead shot and resin. You get maybe
60-70% density, something to bear in mind.
Gregg Carlson
At 08:39 AM 6/8/2000 -0500, you wrote:
60-70% density, something to bear in mind.
Gregg Carlson
At 08:39 AM 6/8/2000 -0500, you wrote:
>sure. anthing denser than water can be used in the keel (and water can be
>used in tanks inside the boat)
>
>The higher the density of the material, the less volume you need for your
>keel.
>
>I've cast small amounts of lead, not really a big deal.
>----- Original Message -----
>From: <fung42@...>
>To: <bolger@egroups.com>
>Sent: Thursday, June 08, 2000 7:52 AM
>Subject: [bolger] keel
>
>
>> greetings,
>> can concrete be used instead of cast iron or lead for castiong a
>> keel.any ideas?
>>
>>
>> ------------------------------------------------------------------------
>> Click here for a chance to win airfare to Vegas for you and 20 friends,
>> $15,000 and a suite at Bellagio for New Year's from Expedia.com. Or
>> win 2 roundtrip tickets anywhere in the U.S. given away daily.
>>http://click.egroups.com/1/5296/10/_/3457/_/960468746/
>> ------------------------------------------------------------------------
>>
>>
>
>
>------------------------------------------------------------------------
>Remember four years of good friends, bad clothes, explosive chemistry
>experiments.
>http://click.egroups.com/1/4051/10/_/3457/_/960471658/
>------------------------------------------------------------------------
>
>
>
I imagine that in some circumstances, concrete could be used for a keel. Saying
that, I wouldn't recommend it for the Bolger boats. The Bolger boats which have
lead keels marked on the plans (such as my Micro) need to be formed of lead due
to the fact that neither steel nor concrete would provide the correct weight
within the keel cavity specified.
Lead is not that hard to work with, is readily available and pretty cheap. I got
all the lead I required for my Micro (around 200kg) for £21 (about US$30) and it
took me an afternoon to melt it all down and get it in the mold. The mold took
me about an hour to knock up out of some old plywood. I used an old copper water
tank to melt it down on top of some old bricks which formed a furnace all fired
up by a bag of coal. I would probably rent a big propane burner (like the ones
they use for tar) if I was to do it again as the coal smoke was worse then the
lead fumes!!
The hard bit is moving it when you've poured it!!
that, I wouldn't recommend it for the Bolger boats. The Bolger boats which have
lead keels marked on the plans (such as my Micro) need to be formed of lead due
to the fact that neither steel nor concrete would provide the correct weight
within the keel cavity specified.
Lead is not that hard to work with, is readily available and pretty cheap. I got
all the lead I required for my Micro (around 200kg) for £21 (about US$30) and it
took me an afternoon to melt it all down and get it in the mold. The mold took
me about an hour to knock up out of some old plywood. I used an old copper water
tank to melt it down on top of some old bricks which formed a furnace all fired
up by a bag of coal. I would probably rent a big propane burner (like the ones
they use for tar) if I was to do it again as the coal smoke was worse then the
lead fumes!!
The hard bit is moving it when you've poured it!!
sure. anthing denser than water can be used in the keel (and water can be
used in tanks inside the boat)
The higher the density of the material, the less volume you need for your
keel.
I've cast small amounts of lead, not really a big deal.
used in tanks inside the boat)
The higher the density of the material, the less volume you need for your
keel.
I've cast small amounts of lead, not really a big deal.
----- Original Message -----
From: <fung42@...>
To: <bolger@egroups.com>
Sent: Thursday, June 08, 2000 7:52 AM
Subject: [bolger] keel
> greetings,
> can concrete be used instead of cast iron or lead for castiong a
> keel.any ideas?
>
>
> ------------------------------------------------------------------------
> Click here for a chance to win airfare to Vegas for you and 20 friends,
> $15,000 and a suite at Bellagio for New Year's from Expedia.com. Or
> win 2 roundtrip tickets anywhere in the U.S. given away daily.
>http://click.egroups.com/1/5296/10/_/3457/_/960468746/
> ------------------------------------------------------------------------
>
>