Pattern wing design

[Gray E Fowler]

I agree with Troy..get something established and fly it.  I have a Bridi 
Escape...Thought I would "make it fly better" so I removed alot of the 
prescribed dihedral...now left rudder gives right roll,  and right rudder 
gives left roll....try getting used to that!  The guys who designed and 
kitted these planes pretty much had it figured out. The rule may 
be......Does the damn thing work??? Yes?? Do not Freak with it.  Ever 
wonder how much better a KAOS would fly with a YS 140? 



Gray Fowler
Principal Chemical Engineer
Composites Engineering




"Troy Newman" <troy_newman at msn.com>
Sent by: discussion-request at nsrca.org
09/05/2003 09:56 AM
Please respond to discussion

 
        To:     <discussion at nsrca.org>
        cc: 
        Subject:        Re: Pattern wing design


Why is the big rush to change the wing on these designs.....?

Why not take the proven airframe build it and fly the living heck out of 
it.
My personal opinion is the Prophecy wing will be too big area wise for a 
90
sized bird. You need something in the 800-900sq-in range....The Prophecy 
is
up around 980 -1000...This is the same wing that is on the Focus, Hydeout,
PHD, Temptation, and so on....Its a 2M 10lb to 10.5lb  bird platform not a
8-9lb platform....

The Bridi designs have good wings on them use it. You are not going to 
gain
anything. In this situation a successful conversion would mean that you
didn't screw up an already good flying model.

Just my advice. Worth what you paid for it

Troy Newman
----- Original Message ----- 
From: <randy10926 at comcast.net>
To: <discussion at nsrca.org>
Sent: Friday, September 05, 2003 10:32 AM
Subject: Re: Pattern wing design


> Man this is becoming much more complex tha I thought it was going to be.
Maybe
> I should get a Runaround (little version if possible) foam wing for the
60-
> sized and Prohpecy foam wing for the 90-sized Kaos, if I am going to try
> different wings.
>
> Randy
> > The Kaos wing was a TLAR section of approximately 15% thickness. Root
chord
> > was around 13" and tip chord was around 10"
> >
> >  with a span of around 60"
> > , in double tapered planform. The Super Kaos was one of the better
flying
> > planes of the day and trained many a  budding pattern pilot, including
me.
> > HOWEVER, the ribs were pretty much all different; shapes, thicknesses,
LE TE all
> > tended to be a little different and matched poorly to the overall
structure.
> > That
> > is, compared to most things we see today.
> >
> > Another HOWEVER: it flew extremely well even though the wing surfaces
were
> > often uneven. It flew better than the later releases called the UDDER
CHAOS or
> > Ultimate Kaos or something like that. The later versions were 
utilising
the
> > world famous Curare wing, which, on the Curare, worked incredibly 
well.
It was
> > the World Champ airplane after all, Hanno Prettner notwithstanding. On
the Super
> > Kaos, it behaved doggy. OMO
> >
> > The Prophecy airfoil, as the story was re-told, came from FS, or fish
shape.
> > Nature given the chance, will be more efficient in her designs, one 
way
or
> > another. So the copying here was pure genius. Or not.
> >
> > Matt K
> > > Subj:Re: Pattern wing design
> > > Date:9/4/2003 10:42:39 AM Eastern Daylight Time
> > > From:<A
HREF="mailto:randy10926 at comcast.net">randy10926 at comcast.net</A>
> > > Reply-to:<A
HREF="mailto:discussion at nsrca.org">discussion at nsrca.org</A>
> > > To:<A HREF="mailto:discussion at nsrca.org">discussion at nsrca.org</A>
> > > Sent from the Internet
> > >
> > >
> > >
> > > Anyone know what wing the KAOS and Prophecy uses.  I recently got a
Kaos kit
> > >
> > > and the plans for a KOAS 90.  Thinking to building a Kaos 90 with
Prophecy
> > > wings.  I would like to use one of the wing programs to generate a
balsa
> > > built
> > > up wing.  For some reason I would like to really build something.
> > >
> > > Randy
> >
>
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