[Public-list] thx for chainplate info and advice, and some thoughts on winter covers

[JohnI]

This is good information. I'm not sure I understand how the temperature
absorbtion/differential of internal ballast can affect the hull or its seam,
but just knowing that it does encourages me to be cautious about moving the
boat when it's cold. The boat is currently stored outside on stands and
we've had sub-freezing weather. We live on a bumpy road so it looks like it
might be best to try to move it in the Spring. Thanks Don.

On 12/9/05, Don Campbell <dk.campbell at sympatico.ca> wrote:
>
> I have taken the boat out of the water once with snow on the deck but with
> air
> temps above 32 deg. F. on Nov 2 tht year.  My trailer has 10 pads and air
> ride
> and with the boat  in water, the ballast was not cooled to ambient air
> temp so
> well above freezing. I had a 2 hour drive home. I know that boats are
> moved here
> in the winter for the boat show in Toronto but they will again be moved on
> air
> ride axles and they all have spade keels. I would not move any boat that
> has the
> ballast encapsulated and below 40 degrees air temp if the ballast had been
> below
> the freezing point of water.
>     My choice for working on the boat would be to try to prevent the
> ballast
> from getting really cold and hence in a plastic covered,  double layer
> (with air
> inflation between the layers) poly greenhouse type of structure for your
> current
> temps suggested. The amount of solar energy stored in the soil and
> insulated by
> the double poly will keep things above freezing for much of the winter.
> Don #528
>
>
>

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