On Mon, 12 Mar 2007 07:29:09 GMT, Owen Duffy wrote:

Owen Duffy wrote in
:

An email correspondent suggested that there was no use for such a thing. If
your antenna didn't blow down last season, then it wasn't big enough!

Well, you could use the calculator to remove most of the uncertainty and be
quite confident it *will* blow down. To do so, use a safety factor well
less than 1, say 0.5 should be reliable, and use a low wind speed, so that
you don't need to wait long for the event.

Owen

Hi Owen,

Classic work includes wind load, ice load, and temperature, with
comined loads usually expressed in pounds per foot lengths. It is a
tedious translation to check your page though. Try researching Pender
and Thomson.

73's
Richard Clark, KB7QHC