"Richard Clark" wrote in message
...
On Tue, 17 Feb 2004 17:47:39 -0000, "Richard"
wrote:

I'm wondering about the spacings, A, B, C, and D.

Hi Richard,

You should be thinking more of the tensile failure of the brick mortar
leveraged by the moment of the load above. Chimneys are very strong
to compressive loads, and as brittle as candy to torsion.

Hi,

I confirmed too that you will experiment problems with the maconnery.
I attached the end of a G5RV to my chimney, fine, no problem for years, but
the vertical damaged the bricks and the cement udner high wind.
A small roof pylon (2-3m high) is by far preferable and more secure.

Thierry
ON4SKY
http://www.astrosurf.com/lombry/menu-qsl.htm



The upshot of this is that on a windy night you may find the chimney
in your bed.

73's
Richard Clark, KB7QHC