Re: Grain Direction in Moulded Prop Blades

From: Mark <f1diddler_at_yahoo.com>
Date: Sun, 11 May 2008 15:03:27 -0000

--- In Indoor_Construction_at_yahoogroups.com, "John Barker"
<john.barker783_at_...> wrote:

> I think a further advantage of oblique grain, that I did not think to
> mention before, is that it resists the tendency of the blade to
acquire
> additional, unwanted, undercamber.>>

Instead of "strength", I should have said, "ability to hold shape."
For example, in the case of USA ezb, the lightest, thinnest wood
possible (down to grain holes that appear at .0055") it still "strong"
enough, but seems we angle the grain for additional *rigidity.* I've
never seen a blade acquire additional camber, and wasn't aware of this
tendency, but have seen them lose twist.
Mark F1diddler
Received on Sun May 11 2008 - 08:03:31 CEST