Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Turn Down Tips?

Matronics Email Lists Forum Index -> Kitfox-List

View previous topic :: View next topic

Author Message

bigboyzt0yz

Joined: 29 Jan 2008
Posts: 29
Location: Centeral Maryland

Posted: Tue Jan 29, 2008 6:52 pm Post subject: Turn Down Tips?

I have looked at several planes on line and they have turn down tips. I was wondering how well they work and do they cut down on your top end speed. Also do they cause any other problems on take off and landings. Lee

_________________
Lee Fritz in Owings Mills Md. 2002 KitFox-IV Classic/912UL/Warp drive taper tip/100% Complete ( Extras Strut fairings08, Grove gear09,) 300 hrs since Aug 07 "Have your feet on the Pedals and keep reaching for the sky".

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Tue Jan 29, 2008 9:26 pm Post subject: Re: Turn Down Tips?

Droop tips I don;t think cause and extra drag than the Hoerner tip. I have never seen any concrete data that shows there is any gain with either tip. 



Some do not like the droop tip as it apparently obscures their vision off the wing tip.  I had read other like them in case of dragging a tip on the runway it will save their wing from damage.



I do assume  you are referring to droop tips ?

_________________
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

Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Tue Jan 29, 2008 10:44 pm Post subject: Turn Down Tips?

At 09:26 PM 1/29/2008, you wrote:

 	  Quote: 	
		  Some do not like the droop tip as it apparently obscures their 

vision off the wing tip.  I had read other like them in case of 

dragging a tip on the runway it will save their wing from damage.


	


It's a great place to install roller-blade wheels for those extreme 

cross-wind landings, and for when you just can't seem to keep it straight. 

Guy Buchanan

San Diego, CA

K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.



Do not archive

_________________
Guy Buchanan
Deceased K-IV 1200
A glider pilot too.

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Thu Jan 31, 2008 6:52 am Post subject: Turn Down Tips?

On the surface that sounds a bit silly... but remember the Quickie Q200??

Landing gear was in the wingtips.  A small wheel canted at the right angle

could save a lot of heartbreak on paved runways...  Consider them training

wheels for crosswinds.



Won't help with my floats though 



Noel



--

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

bigboyzt0yz

Joined: 29 Jan 2008
Posts: 29
Location: Centeral Maryland

Posted: Fri Feb 01, 2008 2:28 pm Post subject: Re: Turn Down Tips?

Here are some photos of what I am looking for does anyone have any used ones before I look for new tips.  It almost looks like there is more than one type of tip in some other Photos I did not attach because they were not "N" numbered and I figured it would cost to much to have them shipped over seas.

Yellow Turn Down Tips.jpg

Description:

Filesize:

26.38 KB

Viewed:

369 Time(s)

With Cargo Pod.jpg

Description:

Filesize:

111.84 KB

Viewed:

373 Time(s)

Mnflyer

Joined: 15 May 2006
Posts: 78

Posted: Fri Feb 01, 2008 4:14 pm Post subject: Re: Turn Down Tips?

Yes the are the stock droop tips on the KF models I - II - III, if you don't have them count your blessing. I would gladly trade you the droop tips on my plane for your horner type tips in a minute, but alas they won't interchange

_________________
GB
MNFlyer
Flying a HKS Kitfox III

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Fri Feb 01, 2008 4:29 pm Post subject: Re: Turn Down Tips?

 	  Quote: 	
		  Yes the are the stock droop tips on the KF models I - II - III, if you don't have them count your blessing. I would gladly trade you the droop tips on my plane for your horner type tips in a minute, but alas they won't interchange 	


WHY ? ???

Mnflyer

Joined: 15 May 2006
Posts: 78

Posted: Fri Feb 01, 2008 6:13 pm Post subject: Re: Turn Down Tips?

Cause I'm tired of hitting my head on them when walking around the wing, you can't see they limit vis. they are just plane ugly do nothing to help the plane fly, if you drag a wing tip you will bend the rear spar they are ugly guess I already said that.

_________________
GB
MNFlyer
Flying a HKS Kitfox III

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Sat Feb 02, 2008 3:01 am Post subject: Turn Down Tips?

On Feb 2, 2008, at 3:13 AM, Mnflyer wrote:

 	  Quote: 	
		   Cause I'm tired of hitting my head on them when walking around the 

 wing, you can't see they limit vis. they are just plane ugly do 

 nothing to help the plane fly, if you drag a wing tip you will bend 

 the rear spar they are ugly guess I already said that.


	


After I bought my model 3, someone from this list (sorry, forgot who) 

sent me a DVD with a video of someone who took his first flight in a 

model 3. He first went in high speed taxi on an asphalt runway and lost 

control and went in a ground loop. While it was filmed from a distance, 

it still shows how easy it can happen and what it does.

When the plane comes back to the apron and damages were examined, the 

right hand drooping winglet was found to be shaved about half the way 

down by the contact with the asphalt. Some modifications were done to 

the bungees (While is is not said on the video, I think he had too soft 

gears) then he went for his first take off, first circuit pattern and 

everything went fine.



My conclusion then was: If he didn't had the drooping winglets, he 

would have hit the end of the right flaperon and was in for repairs 

before he would ever fly his plane.



Maybe I am wrong but while I agree that the winglets don't add much - 

if anything - to the STOL performance and ... yes, the are not 

especially pretty on this traditional type of aircraft, they can 

prevent damages in a ground loop and ... maybe they also prevent the 

uplift of the wing in gusting crosswind.



The bottom line is; I wouldn't install them on a Kitfox without them, 

but I wouldn't remove them either from my aircraft that was built by 

someone else and bought second hand.



Cheers,

Michel Verheughe

Norway

Kitfox 3 - Jabiru 2200

_________________
Kitfox 3 - Jabiru 2200

dcaofak(at)acsalaska.net
Guest

Posted: Sat Feb 02, 2008 12:09 pm Post subject: Turn Down Tips?

My $0.02 worth.

 The droop tips are ugly (IMHO).

 They do nothing for aerodynamics (that I know  of).

 They make an excellent pair of handholds for moving  the airplane with wings folded.

 I have drug a tip landing on a path that turned out  to be narrower that the gear width.  Easily repaired, invisible to all but  the most discerning, and no damage to anything else.

 Final score:  I'll keep the droop tips for  their functionality for the way my Kitfox is used.

 John Stoner

 KF III, 582

 Alaska

   [quote][b]

clint_bazzill(at)hotmail.
Guest

Posted: Sat Feb 02, 2008 12:26 pm Post subject: Turn Down Tips?

Say what you want, but a lot of STOL aircraft have them, I wonder why?  My videos, taken with chase plane shows clearly, the tips do not spill air at stall.  Have not seen any signs of that with the speedster tips.  Until then, I will still believe they do work.  Clint

 [quote]  From: dcaofak(at)acsalaska.net

To: kitfox-list(at)matronics.com

Subject: Kitfox-List: Re: Turn Down Tips?

Date: Sat, 2 Feb 2008 11:05:02 -0900

     My $0.02 worth.

 The droop tips are ugly (IMHO).

 They do nothing for aerodynamics (that I know of).

 They make an excellent pair of handholds for moving the airplane with wings folded.

 I have drug a tip landing on a path that turned out to be narrower that the gear width.  Easily repaired, invisible to all but the most discerning, and no damage to anything else.

 Final score:  I'll keep the droop tips for their functionality for the way my Kitfox is used.

 John Stoner

 KF III, 582

 Alaska

 	  Quote: 	

arget=_blank>http://www.matronics.com/Navigator?Kitfox-List

p://forums.matronics.com

blank>http://www.matronics.com/contribution

[b]

Display posts from previous:

	Matronics Email Lists Forum Index -> Kitfox-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum