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Droopy wing tips.

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occom

Joined: 26 Aug 2006
Posts: 404

Posted: Wed Feb 17, 2010 8:18 am Post subject: Droopy wing tips.

After months of staring at and test fitting those  hideous droopy wing tips, I finally broke down and ordered a new set of standard  tips for my KF. I am offering the old ones for sale with no fixed price. No idea  how much they are worth. 

  

  

  

  

 Dave Goddard

KF IV 1050 / 582 /  Warp

    [quote][b]

wingnut

Joined: 11 Jan 2006
Posts: 356

Posted: Wed Feb 17, 2010 5:30 pm Post subject: Re: Droopy wing tips.

Hmm. As it happens, one my droop tips suffered some damage recently when one tie down came undone in high winds. One wing lifted and crunched the end of the opposite wing tip. I see that you have a model IV 1050. Mine is a 1200.. Do they have the same tips?

_________________
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)

Av8r3400

Joined: 22 Sep 2008
Posts: 83
Location: North Central Wisconsin (KRRL)

Posted: Wed Feb 17, 2010 7:08 pm Post subject: Re: Droopy wing tips.

Model IV 1050 & 1200 use the same ribs, so the tips should be the same.

_________________
Thanks,
Av8r3400

Kitfox Model IV-1200 W/912UL & IVO
Kitfox Model IV-1050 W/912UL & Warp
YouTube Videos

wingnut

Joined: 11 Jan 2006
Posts: 356

Posted: Thu Feb 18, 2010 9:24 am Post subject: Re: Droopy wing tips.

Are there any caveats to look out for when moving wingtips from one airplane to another. I'm not the builder of my Kifox so I'm not sure what to look out for. For instance, are the mounting holes likely to line up or are they drilled in place and thus "custom fit" to each airplane? Also, mine have strobe lights mounted. Do all wingtips have strobe lights? Are they likely to be the same location?

_________________
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)

clint_bazzill(at)hotmail.
Guest

Posted: Thu Feb 18, 2010 10:09 am Post subject: Droopy wing tips.

Those wing tips were never made for the Model IV and later planes.  My new Model IV came with tips from a model 3 with under cambered wings.

  

 Clint

 

 	  Quote: 	
		   Subject: Re: Droopy wing tips.

 From: wingnut(at)spamarrest.com

 Date: Thu, 18 Feb 2010 09:24:31 -0800

 To: kitfox-list(at)matronics.com

 

 --> Kitfox-List message posted by: "wingnut" <wingnut(at)spamarrest.com>

 

 Are there any caveats to look out for when moving wingtips from one airplane to another. I'm not the builder of my Kifox so I'm not sure what to look out for. For instance, are the mounting holes likely to line up or are they drilled in place and thus "custom fit" to each airplane? Also, mine have strobe lights mounted. Do all wingtips have strobe lights? Are they likely to be the same location?

 

 --------

 Luis Rodriguez

 Model IV 1200

 Rotax 912UL

 Flying Weekly

 Laurens, SC (34A)

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=286965#286965

 

 

 

 

 

 

&gt======================
	


&gt============

[quote] 

 

 

 		 	   		     	  Quote: 	
		  [b]

jareds(at)verizon.net
Guest

Posted: Thu Feb 18, 2010 2:34 pm Post subject: Droopy wing tips.

I have seen all kinds of mountings of wing tips.

I've also seen many without strobes or any other types of lights.

Not a big deal to re mount or relocate holes or wiring but nice to have the 

schematic in hand if you need to extend the wires.

There is no builders blueprint or pattern to my knowledge for mounting the 

wingtips though.



---

occom

Joined: 26 Aug 2006
Posts: 404

Posted: Thu Feb 18, 2010 4:28 pm Post subject: Droopy wing tips.

Not sure about caveats, they came in two parts and had to be glued together. 

Mine go on the Model IV ribs fine as that is what they came from. They have 

the mounts for strobes, not sure I'll put those on the plane again.



---

lcfitt(at)sbcglobal.net
Guest

Posted: Thu Feb 18, 2010 5:00 pm Post subject: Droopy wing tips.

Hi Clint,



Beg to differ.  Larry's IV has the droop tips and I paid extra on my first 

Kit for the Speedster tips.



Lowell



---

clint_bazzill(at)hotmail.
Guest

Posted: Thu Feb 18, 2010 6:16 pm Post subject: Droopy wing tips.

What I ment was, the droop tips were for the model I, II, and III's.  Speedster were for 4's and later with the laminar flow wings.

  

 Clint 

[quote] From: lcfitt(at)sbcglobal.net

 To: kitfox-list(at)matronics.com

 Subject: Re: Re: Droopy wing tips.

 Date: Thu, 18 Feb 2010 16:57:11 -0800

 

 --> Kitfox-List message posted by: "Lowell Fitt" <lcfitt(at)sbcglobal.net>

 

 Hi Clint,

 

 Beg to differ. Larry's IV has the droop tips and I paid extra on my first 

 Kit for the Speedster tips.

 

 Lowell

 

 ---

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Thu Feb 18, 2010 7:01 pm Post subject: Re: Droopy wing tips.

my model iv has droops and not undercambered



I have a mold for model 1 to 3  undercamber  droop tip and they are different. 



what is the gain or loss on  each kind of tip ? If any ? 



I think aesthetics but I would not say that he droop is draggy at all

_________________
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

brubakermal(at)yahoo.com
Guest

Posted: Thu Feb 18, 2010 9:04 pm Post subject: Droopy wing tips.

how much for a setof drup tips  for a mod 2 and any idea what a set of wings for a mod 2 is worth if they are ready for covering 

  

 Malcolm Brubaker

 

Michigan Sport

Pilot Repair 

LSRM-A, PPC, WS

(989)513-3022



--- On Fri, 2/19/10, dave <dave(at)cfisher.com> wrote:



  	  Quote: 	
		  

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

Subject: Kitfox-List: Re: Droopy wing tips.

To: kitfox-list(at)matronics.com

Date: Friday, February 19, 2010, 3:01 AM



 --> Kitfox-List message posted by: "dave" <dave(at)cfisher.com (dave(at)cfisher.com)>



my model iv has droops and not undercambered



I have a mold for model 1 to 3  undercamber  droop tip and they are different. 



what is the gain or loss on  each kind of tip ? If any ? 



I think aesthetics but I would not say that he droop is draggy at all



--------

Rotax Dealer, Ontario Canada

http://www.cfisher.com/

Awesome *New Forum *

http://rotaxaircraft.com/forum/

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=287100#287100



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

sp;        - ;                     -Maww.matronics.com/contribution" target=_blank>http://www.matronics.com/con=================





	


         [quote][b]

lcfitt(at)sbcglobal.net
Guest

Posted: Thu Feb 18, 2010 9:34 pm Post subject: Droopy wing tips.

Dave,



Some of the guys we fly with have the droop tips and others do not - all 

Model IVs and I think you are right - performance difference is not enough 

to measure.



Lowell

---

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Fri Feb 19, 2010 2:05 am Post subject: Re: Droopy wing tips.

Droops tip for under-cambered wings   700$ crated  and ready to go in white gel coat.



Dave



[quote="brubakermal(at)yahoo.com"]how much for a setof drup tips ï¿½for a mod 2 and any idea what a set of wings for a mod 2 is worth if they are ready for covering 

  

 Malcolm Brubaker

 

Michigan Sport

Pilot Repair 

LSRM-A, PPC, WS

(989)513-3022



--- On Fri, 2/19/10, dave <dave> wrote:



  	  Quote: 	
		  

From: dave <dave>

Subject: Kitfox-List: Re: Droopy wing tips.

To: kitfox-list(at)matronics.com

Date: Friday, February 19, 2010, 3:01 AM



 --> Kitfox-List message posted by: "dave" <dave>



my model iv has droops and not undercambered



I have a mold for model 1 to 3ï¿½ undercamber  droop tip and they are different. 



what is the gain or loss on  each kind of tip ? If any ? 



I think aesthetics but I would not say that he droop is draggy at all



--------

Rotax Dealer, Ontario Canada

http://www.cfisher.com/

Awesome *New Forum *

http://rotaxaircraft.com/forum/

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=287100#287100



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

sp;        - ;                     -Maww.matronics.com/contribution" target=_blank>http://www.matronics.com/con=================





	


          	  Quote: 	
		  [b]

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Fri Feb 19, 2010 2:09 am Post subject: Re: Droopy wing tips.

Lowell, I do agree although I will say -- I have seen hundred of Kitfoxes taking off and my videos do speak for them selves with droop tips.  

I flew and Lite squared last year for about 5 hours on floats ( model 4  1200 basically and it was pathetic compared to my I  1050 , both had 582 but it had no wing tips. Just squared off ends.  I suggested to him to contact Mc Bean and get some hoerner style tips and he would get off the water faster I think.



 	  lcfitt(at)sbcglobal.net wrote: 	
		  Dave,



Some of the guys we fly with have the droop tips and others do not - all 

Model IVs and I think you are right - performance difference is not enough 

to measure.



Lowell

---

clint_bazzill(at)hotmail.
Guest

Posted: Fri Feb 19, 2010 11:09 am Post subject: Droopy wing tips.

Hi Lowell and all,

  

 I received my kit in Aug of 1993.  The tips that came with the kit were 2 piece and you had to epoxy them together.  The form before installing them showed that they were under cambered.  I called the factory and they told me that they were from Model 3's and would work just fine on the Model 4.  When you install them you force the camber out.  The droop tips do work.  A Tuft test showed no turblance and yarn layed flat when wing was stalled.  I have pictured to prove.

  

 Clint

 

[quote] From: lcfitt(at)sbcglobal.net

 To: kitfox-list(at)matronics.com

 Subject: Re: Re: Droopy wing tips.

 Date: Thu, 18 Feb 2010 21:31:59 -0800

 

 --> Kitfox-List message posted by: "Lowell Fitt" <lcfitt(at)sbcglobal.net>

 

 Dave,

 

 Some of the guys we fly with have the droop tips and others do not - all 

 Model IVs and I think you are right - performance difference is not enough 

 to measure.

 

 Lowell

 ---

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Sat Feb 20, 2010 12:41 am Post subject: Re: Droopy wing tips.

Clint,  no arguement here. I have no issues with the droop tips. 



I think that for most  that it all about aesthetics possibly.  Personally I like what works.  

[quote="clint_bazzill(at)hotmail."]Hi Lowell and all,

 ï¿½

 I received my kit in Aug of 1993.ï¿½ The tips that came with the kit were 2 piece and you had to epoxy them together.ï¿½ The form before installing themï¿½showed that they were under cambered.ï¿½ I called the factory and they told me that they were from Model 3's and would work just fine on the Model 4.ï¿½ When you install them you force the camber out.ï¿½ The droop tips do work.ï¿½ A Tuft test showed no turblance and yarn layed flat when wing was stalled.ï¿½ I have pictured to prove.

 ï¿½

 Clint

ï¿½

 	  Quote: 	
		   From: lcfitt(at)sbcglobal.net

 To: kitfox-list(at)matronics.com

 Subject: Re: Re: Droopy wing tips.

 Date: Thu, 18 Feb 2010 21:31:59 -0800

 

 --> Kitfox-List message posted by: "Lowell Fitt" <lcfitt>

 

 Dave,

 

 Some of the guys we fly with have the droop tips and others do not - all 

 Model IVs and I think you are right - performance difference is not enough 

 to measure.

 

 Lowell

 ---

Ken Potter

Joined: 18 Aug 2007
Posts: 85
Location: Lanark, Ontario

Posted: Sat Feb 20, 2010 6:44 am Post subject: Re: Droopy wing tips.

Droop tips function similarly to winglets tips on other aircraft.  They prevent the wingtip vortex from flowing between top and bottom.  As such, they actually increase the efficiency of the wing.



Cheers

Ken

_________________
Ken Potter
Model II, No. 483
Rotax 582, C-Box,
99% Complete
C-FJKP
Lanark, Ontario

Fox5flyer
Guest

Posted: Sat Feb 20, 2010 8:15 am Post subject: Droopy wing tips.

Might be true, hypothetically, Ken.  However, if I recall correctly, Skystar 

did tests by comparing the droop tips to their new laminar design and found 

no performance or stall difference so they dropped the droops.  One thing 

the droops will give you is some protection in the event of a ground loop 

when you tip a wing.

Deke Morisse

Mikado Michigan

S5/Subaru/CAP 438+ TT

Previously Model 2, 582 #606 400 hours

"If you put the federal government in charge of the Sahara

Desert, in five years there'd be a shortage of sand."

-- Nobel prize-winning economist Milton Friedman (1912-2006)

---

thesupe(at)hotmail.com
Guest

Posted: Sat Feb 20, 2010 6:43 pm Post subject: Droopy wing tips.

Back when I was flying my Himax, I talked to Wayne Ison about the drooped tips which were made as an option for the Himax, Mini-Max and Airbike aircraft.  He said he didn't think they made much if  any difference except maybe in ground effect, and were mostly for looks.  If Wayne's name doesn't ring a bell, he designed several airplanes for Fisher Flying Products and then founded TEAM aircraft and designed the Himax, Mini-Max, Airbike, and Eros airplanes.  I would guess he knew what he was talking about.  They might keep the flaperon out of the weeds in a ground loop though! LOL

 Take care,  Jim Chuk  Avids,  Kitfox 4  Mn

 

[quote] From: fox5flyer(at)idealwifi.net

 To: kitfox-list(at)matronics.com

 Subject: Re: Re: Droopy wing tips.

 Date: Sat, 20 Feb 2010 11:14:12 -0500

 

 --> Kitfox-List message posted by: "fox5flyer" <fox5flyer(at)idealwifi.net>

 

 Might be true, hypothetically, Ken. However, if I recall correctly, Skystar 

 did tests by comparing the droop tips to their new laminar design and found 

 no performance or stall difference so they dropped the droops. One thing 

 the droops will give you is some protection in the event of a ground loop 

 when you tip a wing.

 Deke Morisse

 Mikado Michigan

 S5/Subaru/CAP 438+ TT

 Previously Model 2, 582 #606 400 hours

 "If you put the federal government in charge of the Sahara

 Desert, in five years there'd be a shortage of sand."

 -- Nobel prize-winning economist Milton Friedman (1912-2006)

 

 

 ---

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