> My first trial there was to simply see whether a flange hole >got bigger or smaller with increased humidity/moisture content. It is clear >to me, contrary to apparent popular belief, that a hole in a flange >decreases in diameter with increased humidity/moisture content. > >Terry Farrell That's an assumption that's not necessarily supportable by the experiment. Did the hole get smaller, or narrower and oval? How can you tell if the average diameter of the hole is smaller or larger by testing the fit of a round rod? It's the average diameter that has the effect of compressing the bushing cloth against the center pin, not the narrowest spot, which your test may be indicating. Since the rest of the hole could still be wider than the rod, or not, what has it told us? Ron N
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