On Sun, Aug 25, 2013 at 7:10 PM, art <upwind120_at_gmail.com> wrote:
> **
>
> I've been getting suggestions off-line on how to take up the slack around
> the dihedral break rib, and I've tried a couple out on the original LPP
> wing, which has lots of slack to play with. The best thing yet, and it's
> only been 5 hours since my post, seems to be applying glue to the rib sides
> and then pulling in the film to it with a soft balsa tweezer. If I need to
> take more in, I can do it again from the opposite surface. Seems to be
> working on the old wing, which is now a little less horrible to look at.
>
> I have had good success using very highly diluted contact cement on
acetone or ketone. In practise the solution has been almost pure solvent,
and that might probably work, using just capillary and air pressure to fold
the foil onto itself, but trace amounts of glue add some confidence that
the fold will stick. The method is simply to drop some of the solution onto
the slack, and see - like magic - the foil to fold onto itself and take
away all the slack. It seems to be good to start from either end of the
DH-break rib, this seems to promote the fold to develop along the rib.
Talking of the film, 0.9 micron seems to be indeed good stuff for
PP/LPP/F1M. I recently bought mine from Mike Woodhouse, who carries also
that (in addition to thicker films for outdoor use).
-Tapio-
Received on Mon Aug 26 2013 - 04:20:41 CEST
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