On Sun, 11 May 2008 13:22:02 +0700, Bruce in Bangkok
wrote:

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Oceanis 43 with a Cape Horn windvane. He reports the vane worked well
with a couple of exceptions.
1) The tube transversing the transom is not watertight and following
seas do push water thru it.
2) His unit started sticking where the rod passes thru the plastic
bushing. After several emails with Cape Horn, they finally admitted that
the plastic they used had a tendency to absorb water and swell up to 15%.
///

There's a board used in aircraft still - been round for ever, that
looks like SRBP (synthetic resin bonded paper) that is called SRBF
where the fabric layers are made of linen.
///
I think you are talking about Micarta, dates back to 1910 or
thereabout, and is still being used.
///
Bruce-in-Bangkok

Yep, micarta is a trade name - though it is going generic. Tufnol
is another tradename for the material too.

Regards

Brian