F1D wing spars without boron Was: USA Team Manager Report

From: Tapio Linkosalo <tapio.linkosalo_at_helsinki.fi>
Date: Fri, 26 Sep 2008 08:23:36 +0300 (EEST)

On Thu, 18 Sep 2008, Brett wrote:

> Round 4 Highlights:
...
> He [Kagan] steered again, but while trying to release the model he pulled
> down too hard and I saw both wing tips flare up into a V shape. I let
> out a loud groan thinking a wing spar had broken. Kagan though "ever
> on his game" raised the balloon a few inches and the wing popped back
> into shape. After he released it everyone was amazed to see it still
> in the air. This seems to be a clear indication of the superiority of
> non-boron wing spars.

What sort of wood is needed for such wing spars? Dencity, stifness
coefficient, dimensions, weight?

Thanks,


-Tapio-
Received on Thu Sep 25 2008 - 22:23:42 CEST