Re: Geodetic Wing Contruction

From: vladimirlinardic <vladimirlinardic_at_yahoo.com>
Date: Sat, 10 Nov 2007 16:28:13 -0000

about 10 years ago I built hunt's no hassle f1d models with this type
of wing construction the zig zag ribs on left wing were longer than
on right giving a deeper section on left wing aiding torque problems
and aiding the turn. the ribs perpendicular to spar were lower than
the angled ribs (less camber) but were not glued to microfilm
therefore camber was controlled by angled ribs

vladimir linardic
--- In Indoor_Construction_at_yahoogroups.com, LeRoy C Cordes
<lcordes_at_...> wrote:
>
> My comment would be "Try It !"
>
> LeRoy Cordes
> In Downstate Illinois
>
> On Fri, 26 Oct 2007 12:45:45 -0000 "calgoddard" <calgoddard_at_...>
> writes:
> > I decided to try this variation where the wing ribs are arranged
in a
> >
> > zig-zag pattern instead of running parallel to the motor stick.
> >
> > In cutting the ribs, I used my standard rib template with my
> > preferred
> > camber for this airplane design.
> >
> > After the wing was framed I noticed that the ribs extend higher
than
> >
> > normal because of the increased length needed to span from the
> > leading
> > edge spar to the trailing edge spar.
> >
> > I assume that use of the standard rib template in a geodetic
pattern
> >
> > has in effect increased the wing camber above what it would be in
> > the
> > normal configuration where the ribs (cut with the same template)
> > extend
> > perpendicular to the spars. I assume this is bad because it will
> > result
> > in excessive drag.
> >
> > This is a shame because the wing is stiff, true and under my
weight
> >
> > budget for this component. Live and learn I guess.
> >
> > Comments please.
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
>
> LeRoy Cordes
> In Downstate Illinois
>
Received on Sat Nov 10 2007 - 08:28:17 CET