Re: Re: Using Boron on outlines.

From: Tapio Linkosalo <tapio.linkosalo_at_iki.fi>
Date: Wed, 09 May 2012 15:46:14 +0300

On 9.5.2012 15:33, mkirda_at_sbcglobal.net wrote:
> Do you put on top/bottom or just on the outside? I've been thinking
> about doing the same as I have broken stabs at that point. Maybe 1-2
> inches of 003 boron would be fine, I think.
>
> Jos, if I were doing it on a stab outline, I'd add top/bottom while
> still on the form, before adding ribs. Easier to flip over.

On my latest models I used boron on the wing center sections. After
cutting the spars, I added boron on one side first (supporting the spar
against glass plate tabletop and a steel ruler), then flipped over and
made the other side. Currently my tails do not have boron, but they are
far more flexible than the wings, so I have considered adding some boron
also to tailplane center spars to add some rigidity. They can handle the
flight OK, but walking the model from pits to the start site is really
slow... My tails have up-turned tips, so the center sections are one
piece and only slightly bent, hence adding boron should be easy for the
straight spars.



-Tapio-
Received on Wed May 09 2012 - 05:46:18 CEST