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[?? Probable Spam] Vortex generators

 
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Guy Buchanan



Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA
PostPosted: Wed Apr 13, 2011 9:37 am    Post subject: [?? Probable Spam] Vortex generators Reply with quote
On 4/13/2011 10:07 AM, kerrjohna(at)comcast.net (kerrjohna(at)comcast.net) wrote:
Quote:
Some of you interested in tweeking the performance of your Kitfoxes may be ineterested in adding vortex generators.  This has been discussed in the past.  For about $100 I am having some fun.

John,
    You're one of very few to have any success with VG's on a IV. Would you be interested in publishing exactly what you did so others could try it?

Thanks,

Guy Buchanan Normal Guy Buchanan 8 20 2010-09-24T17:53:00Z 2011-01-02T22:52:00Z 1 25 149 1 1 173 14.00 <![endif]--> 59 Clean Clean false false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 <![endif]--> <![endif]--> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} <![endif]--> <![endif]--> <![endif]-->Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 592-C / Warp 3cs / 500 hrs. and grounded


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Guy Buchanan
Deceased K-IV 1200
A glider pilot too.
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PostPosted: Wed Apr 13, 2011 11:27 am    Post subject: [?? Probable Spam] Vortex generators Reply with quote
I have vG's on my Model IV Kitfox.  Tuff tested with aircam chase.  On wing, elevator. I have large elevator, gap seal, counter balance elevator.  I can trimm plane with full flaps for 65
 mph, very little stick pressure.  Stall speed with VG's same as stall speed before with full flaps.

Clint
 Date: Wed, 13 Apr 2011 10:32:41 -0700
From: gebuchanan(at)cox.net
To: kitfox-list(at)matronics.com
Subject: Re: [?? Probable Spam] Vortex generators

Message body On 4/13/2011 10:07 AM, kerrjohna(at)comcast.net (kerrjohna(at)comcast.net) wrote:
Quote:
Some of you interested in tweeking the performance of your Kitfoxes may be ineterested in adding vortex generators.  This has been discussed in the past.  For about $100 I am having some fun.

John,
    You're one of very few to have any success with VG's on a IV. Would you be interested in publishing exactly what you did so others could try it?

Thanks,

.ExternalClass p.ecxMsoNormal, .ExternalClass li.ecxMsoNormal, .ExternalClass div.ecxMsoNormal {margin-right:0in;margin-bottom:10.0pt;margin-left:0in;line-height:115%;font-size:11.0pt;font-family:'Calibri','sans-serif';} .ExternalClass a:link, .ExternalClass span.ecxMsoHyperlink {color:blue;text-decoration:underline;text-underline:single;} .ExternalClass a:visited, .ExternalClass span.ecxMsoHyperlinkFollowed {color:purple;text-decoration:underline;text-underline:single;} .ExternalClass .ecxMsoChpDefault {font-size:10.0pt;font-family:'Calibri','sans-serif';} (at)page WordSection1 {size:8.5in 11.0in;} .ExternalClass div.ecxWordSection1 {page:WordSection1;} Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 592-C / Warp 3cs / 500 hrs. and grounded


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wannafly



Joined: 13 Oct 2006
Posts: 53
PostPosted: Wed Apr 13, 2011 11:45 am    Post subject: [?? Probable Spam] Vortex generators Reply with quote
Hi Guys
 
I have had my vg's on for 3 plus years now. When I put them on I had the subaru motor and have since changed to the 912s. I know when I first put them on I went flying and took the numbers off my airspeed gauge. Nothing fancy or technical. I know I had close to 8 mph drop in stall and 2 or 3 mph increase in cruise. I bought 100 vg's for $100. They were just a light plastic with sticky tape. I mounted them as per instructions that came with them and have not moved them. have lost a couple of them since and will have to glue them down one day.
So in my experience they did work on my Fox IV speedster
 
mic
 
From: clint_bazzill(at)hotmail.com
To: kitfox-list(at)matronics.com
Subject: RE: [?? Probable Spam] Vortex generators
Date: Wed, 13 Apr 2011 19:19:39 +0000

.ExternalClass .ecxhmmessage P {padding:0px;} .ExternalClass body.ecxhmmessage {font-size:10pt;font-family:Tahoma;} I have vG's on my Model IV Kitfox.  Tuff tested with aircam chase.  On wing, elevator. I have large elevator, gap seal, counter balance elevator.  I can trimm plane with full flaps for 65
 mph, very little stick pressure.  Stall speed with VG's same as stall speed before with full flaps.

Clint
  Date: Wed, 13 Apr 2011 10:32:41 -0700
From: gebuchanan(at)cox.net
To: kitfox-list(at)matronics.com
Subject: Re: [?? Probable Spam] Vortex generators

On 4/13/2011 10:07 AM, kerrjohna(at)comcast.net (kerrjohna(at)comcast.net) wrote:
Quote:
Some of you interested in tweeking the performance of your Kitfoxes may be ineterested in adding vortex generators.  This has been discussed in the past.  For about $100 I am having some fun.

John,
    You're one of very few to have any success with VG's on a IV. Would you be interested in publishing exactly what you did so others could try it?

Thanks,

.ExternalClass p.ecxMsoNormal, .ExternalClass li.ecxMsoNormal, .ExternalClass div.ecxMsoNormal {margin-right:0in;margin-bottom:10.0pt;margin-left:0in;line-height:115%;font-size:11.0pt;font-family:'Calibri','sans-serif';} .ExternalClass a:link, .ExternalClass span.ecxMsoHyperlink {color:blue;text-decoration:underline;text-underline:single;} .ExternalClass a:visited, .ExternalClass span.ecxMsoHyperlinkFollowed {color:purple;text-decoration:underline;text-underline:single;} .ExternalClass .ecxMsoChpDefault {font-size:10.0pt;font-family:'Calibri','sans-serif';} (at)page WordSection1 {size:8.5in 11.0in;} .ExternalClass div.ecxWordSection1 {page:WordSection1;} Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 592-C / Warp 3cs / 500 hrs. and grounded
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PostPosted: Wed Apr 13, 2011 2:05 pm    Post subject: [?? Probable Spam] Vortex generators Reply with quote
The Harrison VG's are applied singly, not in pairs as sometimes seen, at a designed angle, alternating inboard and outboard on 3" centers and on a line 10% back from the leading edge using the positioning template provided with the package. 53 VG's went on each wing, though 50 would have worked evenly spaced in from each end. The VG's are a clear plastic about inch long and 3/8" high at the rear tapering to nothing at the front. As indicated in another response the double sided tape is temporary and cyanoacrilate instant glue is specifed for permanent installation. Removing the VG's from the tape is no easy task though, so it may be a while before the task is undertaken.

I ordered two sets in case I decide to install them on the horizontal stab but with gap seals getting the tail down has never been a problem.


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