REFLECTOR: Vortex generators
Yahoo
steve_beilby at yahoo.com.au
Fri Mar 27 23:09:19 CDT 2009
My V was very hairy on short final, almost no response from the ailerons.
I covered one wing with wool 'tufts' and went flying with a video camera
in the chase a/c.
They say every picture tells a story - at low (approach) speed, the
tufts forward of the aileron (upper wing surface) stood up on end,
perperdicular to the airflow - the ailerons were flopping around in a
vacuum.
I made my own VGs from some white, angle plastic from the local hardware
store and put about 9 VGs on each wing (see attached photo) and the
respose on short final is firm and responsive.
I would not consider taking them off.
fwiw
Steve
Michael Watson wrote:
> I've had VGs on wings and canard for nine years now, I would
> feel very uneasy landing a Velocity without them.
>
> During my first year flying without them, I came over the numbers
> between 80~85 KIAS. That speed gave the feeling of positive control
> of rudder and ailerons. I felt that for safety. that seed was just too
> high.
>
> After installing the VGs, I would have that same feeling between
> 67~72 KIAS. Due to the slower landing speed, the plane stops in
> a shorter distance saving ware and tare on tires and brake pads.
>
> I have had the airspeed down to 63 KIAS at altitude and it did not
> pitch buck. After ten years, I still do not know at what speed it will
> start to pitch buck.
>
>
>
> On Fri, Mar 27, 2009 at 1:27 PM, <SlvEgl99 at aol.com
> <mailto:SlvEgl99 at aol.com>> wrote:
>
> Can anyone report on performance changes?
>
> Bob Wood
>
> In a message dated 3/27/2009 12:11:23 P.M. Eastern Daylight Time,
> scott at tnstaafl.net <mailto:scott at tnstaafl.net> writes:
>
> I think you missed inserting the link. Though I think your
> refering to
> these?
>
> http://stolspeed.com/
>
> I saw them in the EAA rag. They look like the nicest I've
> seen and are
> right in the range of all the other options, not including TC
> VG's
> which are spectacularly outrageous!
>
> I think I'm going to order a set of these as I pulled off my
> CCI VG's to
> repaint the wings. I was going to glue the old ones back on
> but these
> are so much more user friendly. My main complaint about CCI's
> are, they
> are sharp! And can cut your hand, especially when washing the
> plane.
>
> I need to recount how many are needed for a Std wing & canard,
> though I still have the CCI's attached to the canard. I could
> just put
> new ones on the wing..
>
> I love um, VG's that is. Shorter take off roll, slower
> stall speed ,
> faster climb rate, better aileron response at slow speeds, and
> negligible reduction of top end speed.
>
> Scott
>
>
>
> Tom wrote:
> > Below is a link to some pretty nice VGs--they are fairly
> inexpensive
> > ($97 for 120).
> > Questions:
> > Are they worth doing?? Do you get enough slower speed benefit to
> > offset the ugly factor?
> > Is there a template available for install?
> > thx Tom
> > _______________________________________________
> > To change your email address, visit
> > http://www.tvbf.org/mailman/listinfo/reflector
> >
> > Visit the gallery! www.tvbf.org/gallery
> <http://www.tvbf.org/gallery>
> > user:pw = tvbf:jamaicangoose
> > Check new archives: www.tvbf.org/pipermail
> <http://www.tvbf.org/pipermail>
> > Check old archives:
> http://www.tvbf.org/archives/velocity/maillist.html
> >
>
>
> _______________________________________________
> To change your email address, visit
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery! www.tvbf.org/gallery
> <http://www.tvbf.org/gallery>
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> <http://www.tvbf.org/pipermail>
> Check old archives:
> http://www.tvbf.org/archives/velocity/maillist.html
>
>
> ------------------------------------------------------------------------
> Feeling the pinch at the grocery store? Make dinner for $10 or
> less <http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001>.
>
> _______________________________________________
> To change your email address, visit
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> <http://www.tvbf.org/pipermail>
> Check old archives:
> http://www.tvbf.org/archives/velocity/maillist.html
>
>
>
>
> --
> Mike W.
> 1997 Velocity Elite RG
> Franklin /IVO Electric CS
> Dual GRT EFIS Synthetic Vision
> ------------------------------------------------------------------------
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery! www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
More information about the Reflector
mailing list