Today's Message Index:
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0. 09:05 AM - [Please Read] - Last Official Day of List Fund Raiser! (Matt Dralle)
1. 03:04 PM - Fw: Vortex gens. to Tim Yoder (Bob and Kathy)
2. 08:49 PM - Pics of VG's on airplane (Flyinisfun@aol.com)
3. 09:12 PM - Re: Pics of VG's on airplane (F. Tim Yoder)
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| Subject: | [Please Read] - Last Official Day of List Fund Raiser! |
Dear Listers,
Its November 30th and that always means a couple of things. Its my birthday again;
number 49 actually! But it also means that its that last official day of
the Matronics Email List Fund Raiser! If you been thinking about picking up
one of those really nice incentive gifts now is the time to jump on it!!
If you've been meaning to make a Contribution this month but have been putting
it off for some reason, NOW is the time!
I will be posting the List of Contributors in a few days, so you'll probably want
to be known as a person that supported the Lists!
I want to thank everyone that has so generously made a Contribution this year in
support of our Lists. It is your generosity that keeps this operation running
and I don't ever forget it.
The List Contribution Web Site is fast and easy. Please support our habit by making
your Contribution right now:
http://www.matronics.com/contribution
Or, by dropping a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
Thank you to all in advance!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Fw: Vortex gens. to Tim Yoder |
=0A=0A=0A----- Forwarded Message -----=0AFrom: Bob and Kathy <katebob10@yah
oo.com>=0ATo: "flyoder@yoderbuilt.com" <flyoder@yoderbuilt.com> =0ASent: Fr
iday, November 30, 2012 10:05 AM=0ASubject: Vortex gens.=0A =0A=0AHi Tim. T
he Vortex gen kit is by Harrison designs. They have a web page "landshorter
.com"=0ATheir price is- $95.00 for the kit. Includes 100 pieces and instr
uctions for experimental aircraft. This kit is complete and never used. The
kit does not include adhesive but recommended type is included in instruct
ions. I will take=0A$ 60.00 plus shipping. Bob
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| Subject: | Pics of VG's on airplane |
Here are pictures of the VG's on the wing and under the horizontal
stabilizer.
1. The VG's are located on the underside of the horizontal stab. 4" ahead
of the elevator hinge line, spaced 2.5" apart. They go the full
width on each side. See photos.
2. The wing VG's are located on the top side, 10" back from a vertical
line on the leading edge, starting about 20" outboard of the fuselage. This
gives me space to get in and out of the cabin. I think I will add 2 or 3
near the fuselage for the fillet area. These are also spaced 2.5" apart.
See photos.
These are not scientifically placed but located in accordance to some
information I found on the Internet which goes like this. With the plane in a
level position, lay a straight edge level, front to rear, across the wing
and where it breaks from the surface on the rear, measure 4" ahead of this
point and put the leading edge of the VG's there. This is the method I
used. Where the trailing edge of the straight edge seperates from the surface
is the leading edge where the air begins to burble. The vortex needs to be
started before this point and someone has come up with the 4" ahead of
this point. This might not be true on all airfoils but I know it works here.
Another way is to tuft the wing and find where the burble point begins. I
think the 4" is an obituary point so who knows. Do I have the most
optimum point, I really don't know but it works. If someone thinks they finds
a
better way to do this let me know.
Jesse
Message 3
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| Subject: | Re: Pics of VG's on airplane |
Jesse,
Thanks, did you say what brand you used?
Tim
----- Original Message -----
From: Flyinisfun@aol.com
To: Kis-list@matronics.com
Sent: Friday, November 30, 2012 9:48 PM
Subject: KIS-List: Pics of VG's on airplane
Here are pictures of the VG's on the wing and under the horizontal
stabilizer.
1. The VG's are located on the underside of the horizontal stab. 4"
ahead of the elevator hinge line, spaced 2.5" apart. They go the
full width on each side. See photos.
2. The wing VG's are located on the top side, 10" back from a
vertical line on the leading edge, starting about 20" outboard of the
fuselage. This gives me space to get in and out of the cabin. I think
I will add 2 or 3 near the fuselage for the fillet area. These are also
spaced 2.5" apart. See photos.
These are not scientifically placed but located in accordance to some
information I found on the Internet which goes like this. With the
plane in a level position, lay a straight edge level, front to rear,
across the wing and where it breaks from the surface on the rear,
measure 4" ahead of this point and put the leading edge of the VG's
there. This is the method I used. Where the trailing edge of the
straight edge seperates from the surface is the leading edge where the
air begins to burble. The vortex needs to be started before this point
and someone has come up with the 4" ahead of this point. This might not
be true on all airfoils but I know it works here. Another way is to
tuft the wing and find where the burble point begins. I think the 4" is
an obituary point so who knows. Do I have the most optimum point, I
really don't know but it works. If someone thinks they finds a better
way to do this let me know.
Jesse
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