Pattern wing design

[John Ferrell]

See Below... (**)

John Ferrell
6241 Phillippi Rd
Julian NC 27283
Phone: (336)685-9606
johnferrell at earthlink.net
Dixie Competition Products
NSRCA 479 AMA 4190  W8CCW
"My Competition is Not My Enemy"
 

  ----- Original Message ----- 
  From: Gray E Fowler 
  To: discussion at nsrca.org 
  Sent: Friday, September 05, 2003 8:20 AM
  Subject: Re: Pattern wing design



  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?? 

  ** Great! You proved it. The next time you encounter a model with adverse roll you will likely be able to fix it.

  Do not Freak with it.  Ever wonder how much better a KAOS would fly with a YS 140?  

  **Yes I have.....
  Especially if I could bring it in at about 9 pounds....



  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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  > # discussion-request at nsrca.org
  > # and put leave discussion on the first line of the body.
  > #
  >
  >
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