Matronics Email Lists :: View topic - help--how to mount wingtips.

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

help--how to mount wingtips.

Matronics Email Lists Forum Index -> Kitfox-List

View previous topic :: View next topic

Author Message

occom

Joined: 26 Aug 2006
Posts: 404

Posted: Wed Mar 10, 2010 6:23 pm Post subject: help--how to mount wingtips.

My new wingtips have arrived and I'm very pleased.  Unfortunately I need someone to forward mounting instructions. On my 1991-2  Model IV 1050 the original wingtip instructions showed them pop riveted to the  last rib, and a fabric finish tape over the joint. 

  

 The new hit came with aluminum strips and from  pictures posted here the other day I guess they are riveted (and glued) to the  outer side of the rib on the inside of the capstrip. Then the wingtip is screwed  to nutplates mounted on the strips? 

  

 This is what I have guessed but a set of real  instructions and pictures would help with rivets/bolt pitches etc.  

  

 Hoping for help, thanks.  

  

 Dave Goddard

KF IV 1050 / 582 /  Warp

    [quote][b]

- 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

Guy Buchanan

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

Posted: Wed Mar 10, 2010 9:04 pm Post subject: help--how to mount wingtips.

At 06:19 PM 3/10/2010, you wrote:

  	  Quote: 	
		  The new hit came with aluminum strips and from pictures posted here the other day I guess they are riveted (and glued) to the outer side of the rib on the inside of the capstrip. Then the wingtip is screwed to nutplates mounted on the strips? 	


 That's what I did, but I think the sexy mount is to use mini aluminum hinge. Rivet one side to the wing and the other to the wing tip and use hinge pin to hold them together. A tab welded to the hinge pin is screwed to the trailing edge. The RV and Lancair guys use this method for cowls all the time and it's really clean. There are no visible fasteners (if you do the rivets right) and there's no scalloping between the fasteners. And yes, amazingly enough they go around fairly tight corners. You couldn't do the leading edge, but you could get close enough. (My forward two fasteners are probably 3" back from the leading edge anyway.)



 

 Guy Buchanan

 San Diego, CA

 K-IV 1200 / 582-C / Warp / 400 hrs. and counting    [quote][b]

- 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

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

Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Thu Mar 11, 2010 7:26 am Post subject: Re: help--how to mount wingtips.

 	  Quote: 	
		  This is what I have guessed but a set of real instructions and pictures would help with rivets/bolt pitches etc.



Hoping for help, thanks.



Dave Goddard 	




Dave, the "speedster" wing tip installation is fairly straight forward as you have figured out.  It is the builder's option to make them permanent by using rivets and fabric tape over the top or Pk screws and form the fabric under the tip.



I used rivnuts but that is a pain in the butt.  If I build another I will use PK screws.



I can't figure out how to attach the instructions. If you want I will email them to you if you send me your address.



Tom

nahsikhs(at)elltel.net

- 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

_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

lcfitt(at)sbcglobal.net
Guest

Posted: Thu Mar 11, 2010 8:53 am Post subject: help--how to mount wingtips.

Dave,



I guess the first thought is if you want the tips removable or not.  I chose 

to permently attach them as your instructions suggest, but have a smaller 

cut out in the tip for inspection purposes and to hide the lights.



I used the aluminum strips as you suggested glued and solid riveted to the 

capstrips, top and bottom and then used pop rivets and the Hysol to attach 

the tips to the aluminum strip.  Sanding corrects the scalloping Guy 

mentions, then a bit of filler smooths everything out.



I know there are advantages for removable tips and Guy's suggestion is an 

excellent one, Thanks Guy, and would give a clean almost undetectable joint. 

The most common method is to use the nut plates and screws.  I have found 

that the glass thickness at the joint is a bit thinner than the cap strip, 

so if you wanted to lay up a layer or two of glass on the inside of the tip, 

you could develop enough thickness to countersink the screws if you wanted a 

smoother look.



Lowell



---

- 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

Guy Buchanan

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

Posted: Thu Mar 11, 2010 4:22 pm Post subject: help--how to mount wingtips.

At 07:54 AM 3/11/2010, you wrote:

 	  Quote: 	
		  I know there are advantages for removable tips and Guy's suggestion 

is an excellent one, Thanks Guy, and would give a clean almost 

undetectable joint. The most common method is to use the nut plates 

and screws.  I have found that the glass thickness at the joint is a 

bit thinner than the cap strip, so if you wanted to lay up a layer 

or two of glass on the inside of the tip, you could develop enough 

thickness to countersink the screws if you wanted a smoother look.


	


I HIGHLY recommend removable tips. It facilitates inspections, 

maintenance, and repair enormously. I will eventually modify my tips 

using the hinge technique. For now I have countersunk screws into nut 

plates which I think looks like crap because of the scalloping 

between screws. (Not to mention the screw heads.) You could try inner 

and outer carbon strips along the wing tip screw line to cut down the 

scalloping, but I don't think you'll eliminate it completely the way 

you would with the hinge.

Guy Buchanan

San Diego, CA

K-IV 1200 / 582-C / Warp / 400 hrs. and counting

- 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

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

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