On Mon, 17 Sep 2007 23:06:17 GMT, Brian Whatcott
wrote:

On Mon, 17 Sep 2007 19:16:16 +0700, wrote:

....
In reference to rigging changes at different temperatures they
certainly do change in length with changes in temperatures. ...
in winter the colder
temperatures will cause the spars and rigging to contract and the
aluminum mast will contract more then the stainless rigging so your
comments on the necessity to loosen rigging for temperature change in
winter is correct.


Bruce in Bangkok

I'd hate anyone to take a Troll's sneer at face value like that.
I'm thinking of a race boat with a carbon fiber composite mast.
This material can have an extremely low thermal coefficient - as low
as 1 ppm /degC.

Most rigging would shrink more in Winter (but a few would expand when
chilled, wouldn'tcha know?)

Brian W


Well, if you are designing a high tech racing boat why not use high
tech synthetic rope for rigging. some of it is stronger then stainless
cable and nearly zero stretch.


Bruce in Bangkok
(brucepaigeATgmailDOTcom)