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

Kitfox Folding Wings

Matronics Email Lists Forum Index -> Kitfox-List

View previous topic :: View next topic

Author Message

paul.nightingale(at)ntlwo
Guest

Posted: Sat Mar 11, 2006 1:47 am Post subject: Kitfox Folding Wings

Hi everyone



My names Paul Nightingale  I'm pretty new to the list, signed on a few months ago and really enjoy reading whats going on with you guys but as yet never needed to ask any questions. First question then i'm in the U.K. building a Mk 7 still in the early stages had the airplane just a year now, took a year to get it out of skystar and got screwed for landing gear wheels or brakes when they went bang. Some friends came over last weekend to see it and asked me this question. How much pressure is on the leading edge of the wing in flight and can the pins shear and allow the wings to fold back in flight - i said no they cant and there is little pressure on the leading edge but dont no for sure any comments from you guys can this happen  ???

- 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

Brett Walmsley

Joined: 10 Jan 2006
Posts: 47
Location: Savannah, GA

Posted: Sat Mar 11, 2006 3:03 am Post subject: Kitfox Folding Wings

Someone else will surely have more specific info but.

I think the shear on that 1/4 inch pin is around 125,000 #.

An there is very little load to the rear during flight.

---

- 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

_________________
Brett
Model IV 1200/912UL

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Sat Mar 11, 2006 3:33 am Post subject: Kitfox Folding Wings

1/4"? Mine, on a IV, is 5/16"



Lynn

Kitfox IV...Jabiru 2200



On Saturday, March 11, 2006, at 06:03  AM, Brett Walmsley wrote:



[quote] 



 Someone else will surely have more specific info but.

 I think the shear on that 1/4 inch pin is around 125,000 #.

 An there is very little load to the rear during flight.

 ---

- 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

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

hflynn46531(at)yahoo.com
Guest

Posted: Sat Mar 11, 2006 4:02 am Post subject: Kitfox Folding Wings

Brett Walmsley <n93hj(at)numail.org> wrote:    



Someone else will surely have more specific info but.

I think the shear on that 1/4 inch pin is around 125,000 #.

An there is very little load to the rear during flight.

---

- 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

Ceashman(at)aol.com
Guest

Posted: Sat Mar 11, 2006 4:27 am Post subject: Kitfox Folding Wings

 	  Quote: 	
		  Paul Nightingale  wrote that he needs to be comfortable with the shear 

strength of the front >attach pin.
	




Paul, look around the airport hangars at light airplanes being recovered 

Piper cubs and things like that all have about the same flimsy looking bolt. And 

these have lasted for years.



Now' If your heat shields are glowing on the leading edge there would 

probably be too much friction and back pressure, this could cause extra stress on the 

pin.



I don't know, but I think if I were to taxi too fast between two hangars with 

not enough space, I would probably rip the wings off, but I think the tear 

would be at the end of the aluminum tube where we rivet the little steel tabs 

that the pin goes through.

I would not worry about the pin.

I would worry about my sense of periphery



Not very scientific, I know. But I had fun writing it.

Eric.

do not archive.

Ex Brit living in Atlanta GA, Classic 4

- 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

morid(at)northland.lib.mi
Guest

Posted: Sat Mar 11, 2006 4:40 am Post subject: Kitfox Folding Wings

I think they're all 5/16 inch.

Deke



[quote]

 Someone else will surely have more specific info but.

 I think the shear on that 1/4 inch pin is around 125,000 #.

 An there is very little load to the rear during flight.

 ---

- 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

aldaniels(at)fmtc.com
Guest

Posted: Sat Mar 11, 2006 6:27 am Post subject: Kitfox Folding Wings

 	  Quote: 	
		    



The only one I know of pulling out is when he overshot the runway on an 
	


engine out emergency and put the model 5 through the trees and brush. 

The pin was intact, but it pulled through the aluminum spar and steal 

doublers, but what really surprised me was that it pulled so hard that 

it actually broke the carry through tube at the center weld cluster. 

That's not just tough, that's stout as heck. All he had to do was 

machine an insert for the spar to replace the steal doubler and weld up 

the carry through tube, replace the windshield and he was back flying. I 

flew it after the repair and it was just fine. Like I have said before, 

this little airplane is amazing, and will take far more than most people 

imagine.

 	  Quote: 	
		  I think they're all 5/16 inch.

Deke



  



>Someone else will surely have more specific info but.

>I think the shear on that 1/4 inch pin is around 125,000 #.

>    

>

>    

>

- 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

jdmcbean(at)cableone.net
Guest

Posted: Sat Mar 11, 2006 9:01 am Post subject: Kitfox Folding Wings

Ironically.. in cruise level flight, the dynamic forces are minimal and

sometimes slightly forward.



The Single Shear on a .3125  Grade 8 is approximately  6979 lbs and on a

.3125 AN is approximately 7286 lbs.



Fly Safe !!

John & Debra McBean

www.sportplanellc.com

"The Sky is not the Limit...  It's a Playground"



--

- 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

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