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

Wing Fold Tube

Matronics Email Lists Forum Index -> Kolb-List

View previous topic :: View next topic

Author Message

Dave Pelletier

Joined: 10 Jan 2006
Posts: 100
Location: Prescott, Arizona

Posted: Mon Feb 06, 2006 10:40 am Post subject: Wing Fold Tube

Guys,



    I previously asked if anyone has had problems with breaking rivets on the Wing Attach Fittings.  Well the nomenclature is wrong, it's the Wing Fold Tube.  (This is the tube under the horizontal stabilizer that the wing attaches to when folded for transport.)  I talked to Travis at New Kolb and he's never heard of anyone having this problem.  After we discussed it for awhile, Travis had me call Brian Milbourn, which I did.  Brian also has never heard of anyone having this problem but after discussing a couple of solutions, it seems like we've identified the problem.  Whoever built this plane was real sloppy in sizing the hole the Wing Fold Tube goes through.  Brian says it is supposed to be a tight fit.  Mine is really sloppy and the tube moves around quite a bit.  The rivets are only in there to keep the tube in place, not to take the weight of the wings.  Since the hole in my Boom Tube is oversize and it is a sloppy fit, then the rivets in my set up actually carry the weight of the wings, which is why they break.  This makes sense to me and the fix is to make a sleeve to fit over the Wing Fold Tube that will "fill the hole," or take out the slop, and rivet it in from the opposite side.  I haven't done this yet but will keep you informed as to how this turns out.



    On another subject, I told Brian that someone on the list had asked what it costs to have him build a Kolb.  He said that he will build a Kolb Firestar from a Quick Build Kit for $7,800 - this includes two-tone paint.  He also ok'd me publishing this information.  This is the second time I've talked to Brian about a problem and I really appreciate the fact that he is very willing to take time and discuss things.  He's a class guy, just like Travis and the rest of the Kolb crew.



AzDave

- The Matronics Kolb-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?Kolb-List

_________________
AzDave

ul15rhb(at)juno.com
Guest

Posted: Mon Feb 06, 2006 4:49 pm Post subject: Wing Fold Tube

Dave,



I have replaced those wing fold tube rivets at least 3 times in 19 years. They have never broken, but they do loosen up. I trailer my kolb and set it up and taken it down everytime I fly. It stores in the garage.



Ralph

Original Firestar

19 years flying it

-- "Dave & Eve Pelletier" <pelletier(at)cableone.net> wrote:




Guys,



    I previously asked if anyone has had problems with breaking rivets on the Wing Attach Fittings.  Well the nomenclature is wrong, it's the Wing Fold Tube.  (This is the tube under the horizontal stabilizer that the wing attaches to when folded for transport.)  I talked to Travis at New Kolb and he's never heard of anyone having this problem.  After we discussed it for awhile, Travis had me call Brian Milbourn, which I did.  Brian also has never heard of anyone having this problem but after discussing a couple of solutions, it seems like we've identified the problem.  Whoever built this plane was real sloppy in sizing the hole the Wing Fold Tube goes through.  Brian says it is supposed to be a tight fit.  Mine is really sloppy and the tube moves around quite a bit.  The rivets are only in there to keep the tube in place, not to take the weight of the wings.  Since the hole in my Boom Tube is oversize and it is a sloppy fit, then the rivets in my set up actually carry the w!

 eight of the wings, which is why they break.  This makes sense to me and the fix is to make a sleeve to fit over the Wing Fold Tube that will "fill the hole," or take out the slop, and rivet it in from the opposite side.  I haven't done this yet but will keep you informed as to how this turns out.



    On another subject, I told Brian that someone on the list had asked what it costs to have him build a Kolb.  He said that he will build a Kolb Firestar from a Quick Build Kit for $7,800 - this includes two-tone paint.  He also ok'd me publishing this information.  This is the second time I've talked to Brian about a problem and I really appreciate the fact that he is very willing to take time and discuss things.  He's a class guy, just like Travis and the rest of the Kolb crew.



AzDave

 

 

 

Try Juno Platinum for Free! Then, only $9.95/month!

- The Matronics Kolb-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?Kolb-List

rsanoa

Joined: 10 Jan 2006
Posts: 71
Location: Bell Buckle,TN

Posted: Mon Feb 06, 2006 5:17 pm Post subject: Wing Fold Tube

Ralph,

            What engine do you have on your original Firestar?

   

  do no archive



Ralph <ul15rhb(at)juno.com> wrote:

  



Dave,



I have replaced those wing fold tube rivets at least 3 times in 19 years. They have never broken, but they do loosen up. I trailer my kolb and set it up and taken it down everytime I fly. It stores in the garage.



Ralph

Original Firestar

19 years flying it





Try Juno Platinum for Free! Then, only $9.95/month!



		

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

Brings words and photos together (easily) with

- The Matronics Kolb-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?Kolb-List

_________________
Ray S.Anderson

ul15rhb(at)juno.com
Guest

Posted: Tue Feb 07, 2006 6:01 am Post subject: Wing Fold Tube

Ray, for 12 years I had the 377 and the last 7 a 447.



Ralph



-- ray anderson <rsanoa(at)yahoo.com> wrote:




Ralph,

            What engine do you have on your original Firestar?

   

  do no archive



Ralph <ul15rhb(at)juno.com> wrote:

  



Dave,



I have replaced those wing fold tube rivets at least 3 times in 19 years. They have never broken, but they do loosen up. I trailer my kolb and set it up and taken it down everytime I fly. It stores in the garage.



Ralph

Original Firestar

19 years flying it





Try Juno Platinum for Free! Then, only $9.95/month!



		

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

Brings words and photos together (easily) with

 

 

 

Try Juno Platinum for Free! Then, only $9.95/month!

- The Matronics Kolb-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?Kolb-List

Dave Pelletier

Joined: 10 Jan 2006
Posts: 100
Location: Prescott, Arizona

Posted: Sun Feb 12, 2006 9:06 am Post subject: Wing Fold Tube

Gang,



    Fixed my problem.  I replaced the rivets holding the Wing Fold Tube in place with 3/16" AN- bolts, washers and lock nuts.  (Yes, if you have a wife with small hands it is possible for her to get the washer and nut on the inside of the boom tube.)  This really anchored the wing fold tube in place, but the problem still exsisted in that the bolts were supporting the weight of the wings.  So, after getting an ok from Travis at Kolb, I mixed up some JB Weld and filled in the voids on both sides.  On the right side, the void was really big, like about 3/8" bigger than the tube in some places, so the tube was just "floating" in the middle of the hole.  I didn't notice, but as the JB Weld dried, it trickled down the inside of the tube so  that only a small thread connected the wing fold tube to the boom tube.  Still, even this small amount really solidified the Wing Fold Tube.  So, I had my wife (with the small hands) tape the inside of the boom tube and reapplied JB Weld and it worked fine.  The tube now is very solid.  Just to be sure, since there are no rivets on the right side, I made up a small plate and riveted it under the Wing Fold Tube.  The wings fold up very nicely now and line up with the Wing Fold Tube better than they ever did.



Thanks for the help.



AzDave



    (For those of you not aware of the problem, the original builder apparently misaligned the Wing Fold Tube and elongated the hole in the Boom Tube to make it fit.  This caused the weight of the wings to be carried by the rivets instead of the Wing Fold Tube, and rivets kept breaking.)

- The Matronics Kolb-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?Kolb-List

_________________
AzDave

Display posts from previous:

	Matronics Email Lists Forum Index -> Kolb-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