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vortex gererators

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djwild2(at)hotmail.com
Guest

Posted: Wed Aug 20, 2008 7:39 am Post subject: vortex gererators

I have a model 1 Kitfox and am putting VG's on. Can anyone help me

find  the sweet spot?

 Dan



   [quote][b]

- The Matronics Kitfox-List Email Forum -

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JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Sat Aug 23, 2008 4:34 pm Post subject: Re: vortex gererators

The size, and shape of vortex generators is important.  The position of the vortex generators is CRITICAL to get very good results.



The numbers I remember from putting the VG's on my Kolb are that the VG should be 11 % back on the wing, mounted at an angle of 15 degrees " Nose In " in the rib valleys( VERY IMPORTANT).  On my Kolb, there are two VG's in each valley, which gives me a spacing of 2 1/2 inches between all VG's on the wing.  The kitfox wing is longer, the spacing might be different.   Do not use the " That looks about right " Method of mounting VG's, you will not get their full benefit that way.



VG's works wonders on my Kolb, made a new airplane out of it.  My friend with a Skyraider reported the same results when he added VG's.   I would suggest that you talk to JOA from www.landshorter.com about VG's and their placement on the Kitfox, he is a really nice guy and can give you far better information that I can on VG's.



Mike

- The Matronics Kitfox-List Email Forum -

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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

djwild2(at)hotmail.com
Guest

Posted: Sat Aug 23, 2008 5:12 pm Post subject: vortex gererators

Mike,

Thanks for the info. I spent a whole day moving the vg's around and came up 

with 5" back from the leading edge. That is about 10% back. I put one pair 

in each valley also. I don't think it reduced my stall speed much maybe 2-3 

mph but I like how it stalls. It's more like sinking than an abrupt break 

away.

Dan

kitfox model 1

532



--------------------------------------------------

From: "JetPilot" <orcabonita(at)hotmail.com>

Sent: Saturday, August 23, 2008 7:34 PM

To: <kitfox-list(at)matronics.com>

Subject: Re: vortex gererators






The size, and shape of vortex generators is important.  The position of the 

vortex generators is CRITICAL to get very good results.



The numbers I remember from putting the VG's on my Kolb are that the VG 

should be 11 % back on the wing, mounted at an angle of 15 degrees " Nose In 

" in the rib valleys( VERY IMPORTANT).  On my Kolb, there are two VG's in 

each valley, which gives me a spacing of 2 1/2 inches between all VG's on 

the wing.  The kitfox wing is longer, the spacing might be different.   Do 

not use the " That looks about right " Method of mounting VG's, you will not 

get their full benefit that way.



VG's works wonders on my Kolb, made a new airplane out of it.  My friend 

with a Skyraider reported the same results when he added VG's.   I would 

suggest that you talk to JOA from www.landshorter.com about VG's and their 

placement on the Kitfox, he is a really nice guy and can give you far better 

information that I can on VG's.



Mike



--------

&quot;NO FEAR&quot; -  If you have no fear you did not go as fast as you 

could have !!!



Kolb MK-III Xtra, 912-S





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p 0180#200180

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kitfox-List

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Mon Aug 25, 2008 3:29 am Post subject: Re: vortex gererators

 	  Quote: 	
		  ild2(at)hotmail.com

Guest



 Posted: Sat Aug 23, 2008 9:12 pm    Post subject: vortex gererators   



--------------------------------------------------------------------------------

 

Mike, 

Thanks for the info. I spent a whole day moving the vg's around and came up 

with 5" back from the leading edge. That is about 10% back. I put one pair 

in each valley also. I don't think it reduced my stall speed much maybe 2-3 

mph but I like how it stalls. It's more like sinking than an abrupt break 

away. 

Dan 

kitfox  

 	




Dan,  What changed in  power on stalls ?  And do you still get any buffeting and/or stall warning?  



I still have mine on ............   ihttp://www.cfisher.com/vg.html

Dave

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kitfox-List

_________________
Realtime Kitfox movies to separate the internet chatter from the truth
http://www.youtube.com/user/kitfoxflyer
Hundreds of Kitfox Movies
Most viewed Kitfox on youtube
Most popular on youtube
Highest rated on youtube

djwild2(at)hotmail.com
Guest

Posted: Mon Aug 25, 2008 5:40 am Post subject: vortex gererators

Dave,

There is still some buffeting but just less. Easier to control.

Dan Wild

mdl 1

532



--------------------------------------------------

From: "dave" <dave(at)cfisher.com>

Sent: Monday, August 25, 2008 6:29 AM

To: <kitfox-list(at)matronics.com>

Subject: Re: vortex gererators




 	  Quote: 	
		   ild2(at)hotmail.com

 Guest



  Posted: Sat Aug 23, 2008 9:12 pm    Post subject: vortex gererators



 --------------------------------------------------------------------------------



 Mike,

 Thanks for the info. I spent a whole day moving the vg's around and came 

 up

 with 5" back from the leading edge. That is about 10% back. I put one pair

 in each valley also. I don't think it reduced my stall speed much maybe 

 2-3

 mph but I like how it stalls. It's more like sinking than an abrupt break

 away.

 Dan

 kitfox




	




Dan,  What changed in  power on stalls ?  And do you still get any buffeting 

and/or stall warning?



I still have mine on ............   ihttp://www.cfisher.com/vg.html

Dave



--------

Rotax Dealer, Ontario Canada

Flying Videos and Kitfox Info

http://www.cfisher.com/

Realtime Kitfox movies to separate  the internet  chatter from the truth

http://www.youtube.com/profile_videos?user=kitfoxflyer





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p 0383#200383

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kitfox-List

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