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Europa Club Outrigger Pivot Bearing Mod

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howard.brooks(at)nomura-a
Guest

Posted: Wed Nov 08, 2006 8:36 am Post subject: Europa Club Outrigger Pivot Bearing Mod

I'm looking to source the materials to do the above modification. Before going searching the net for steel tubing suppliers, I though it would be worth asking the (UK members of the) forum if anyone could either recommend a supplier, or sell me the offcuts left over from when they did the mod?



Basically I need a short length of 3/8 inch stainless steel tube and a short length of 5/16 inch steel tube (the steel tube needs to be a good fit in the stainless one). Oh, and some nylon spacers/washers. I guess 6 inches of tubing would be ample.



Any advice from those who have gone before?



Thanks

Howard

Visit -  www.EuropaOwners.org

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nwcmc(at)tiscali.co.uk
Guest

Posted: Wed Nov 08, 2006 11:23 am Post subject: Europa Club Outrigger Pivot Bearing Mod

As the designer of this mod I have a few timely comments.



First of all we are looking at updating this mod. The reason is that

even using 4130 steel tube for the inner tubing it has a tendency to

distort crating drag on the outer tube and causing the pivot to revert

to the original arrangement. The future version will use an AN5 bolt

instead of the AN4 bolt and inner tube. The bolt will be prevented from

rotating by locating the head in a V shaped recess in a plate riveted on

the outside of the side plate. An AN5 castellation nut will be used to

retain the bolt. For UK builders the original prototype version of this

update will need approval by the PFA, but assuming I have no problems

with it, I am sure that Andy Draper will allow PFA inspectors to sign

off the work. I intend to update my aircraft in January and will report

when it has final approval.



In the meantime anyone purchasing parts can anticipate being able to

copy my update by purchasing the following:



100mm length of 3/8" stainless tube (wall thickness suitable to

accommodate an AN5 bolt

2 AN5 bolts (length to match outside width between side plates with

castellation nut fitted)

2 AN5 castellation nuts with split pins

4 thin AN5 sized washers to fit either side of the leg

2 pieces of aluminium plate to locate bolt head

4 rivets to attach aluminium plate to sideplate

Small quantity of Redux to fix the stainless tube



Once I have measured up I will be able to provide a more specific list

of the parts required.



Regards



Nigel Charles

--

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fklein(at)orcasonline.com
Guest

Posted: Wed Nov 08, 2006 2:49 pm Post subject: Europa Club Outrigger Pivot Bearing Mod

Nigel,



I was unaware of the mod you describe below and the reasons for it. 

Could you briefly outline the condition which it is intended to remedy?



Fred

A194

STILL working on my wings (sigh)



On Wednesday, November 8, 2006, at 11:18 AM, nigel charles wrote:



[quote] 

 <nwcmc(at)tiscali.co.uk>



 As the designer of this mod I have a few timely comments.



 First of all we are looking at updating this mod. The reason is that

 even using 4130 steel tube for the inner tubing it has a tendency to

 distort crating drag on the outer tube and causing the pivot to revert

 to the original arrangement. The future version will use an AN5 bolt

 instead of the AN4 bolt and inner tube. The bolt will be prevented from

 rotating by locating the head in a V shaped recess in a plate riveted 

 on

 the outside of the side plate. An AN5 castellation nut will be used to

 retain the bolt. For UK builders the original prototype version of this

 update will need approval by the PFA, but assuming I have no problems

 with it, I am sure that Andy Draper will allow PFA inspectors to sign

 off the work. I intend to update my aircraft in January and will report

 when it has final approval.



 In the meantime anyone purchasing parts can anticipate being able to

 copy my update by purchasing the following:



 100mm length of 3/8" stainless tube (wall thickness suitable to

 accommodate an AN5 bolt

 2 AN5 bolts (length to match outside width between side plates with

 castellation nut fitted)

 2 AN5 castellation nuts with split pins

 4 thin AN5 sized washers to fit either side of the leg

 2 pieces of aluminium plate to locate bolt head

 4 rivets to attach aluminium plate to sideplate

 Small quantity of Redux to fix the stainless tube



 Once I have measured up I will be able to provide a more specific list

 of the parts required.



 Regards



 Nigel Charles

 --

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pjeffers(at)talktalk.net
Guest

Posted: Thu Nov 09, 2006 12:18 am Post subject: Europa Club Outrigger Pivot Bearing Mod

Hi Howard,



You may have some success if you contact Nigel Charles.  He will at the

least know where to source the required materials.  You will find his

address and details in the Europa Flyer.  His club e mail address is

mods(at)europaclub.org.uk 



Regards



Pete



--

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howard.brooks(at)nomura-a
Guest

Posted: Thu Nov 09, 2006 1:24 am Post subject: Europa Club Outrigger Pivot Bearing Mod

Thanks Nigel,



I'll follow your revised design and look forward to greater detail when you have it available.



Howard

Visit -  www.EuropaOwners.org

- The Matronics Europa-List Email Forum -

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nwcmc(at)tiscali.co.uk
Guest

Posted: Thu Nov 09, 2006 2:17 am Post subject: Europa Club Outrigger Pivot Bearing Mod

The outrigger mod was designed to reduce wear on a high load area of the

landing gear. The original outrigger pivot was a free turning AN4 bolt which

created wear on the sideplates. The factory added bushes in the plates to

reduce wear however it was only a partial solution. My mod used a pair of

tubes, one Reduxed to the outrigger head and an inner one clamped between

the plates. A grease nipple was included on the front face of the outrigger

head to enable grease to be injected between the tubes to provide regular

lubrication. This provided a crude bearing with the load spread between the

pair of tubes. This was a great improvement but I believe the upgrade to

this mod as I have described will provide even better results.



Nigel Charles



 	  Quote: 	
		  -- Original Message --

Date: Wed, 8 Nov 2006 14:47:41 -0800

Subject: Re: Europa Club Outrigger Pivot Bearing Mod

From: Fred Klein <fklein(at)orcasonline.com>

To: europa-list(at)matronics.com

Reply-To: europa-list(at)matronics.com




Nigel,



I was unaware of the mod you describe below and the reasons for it. 

Could you briefly outline the condition which it is intended to remedy?



Fred

A194

STILL working on my wings (sigh)



On Wednesday, November 8, 2006, at 11:18 AM, nigel charles wrote:



> 

> <nwcmc(at)tiscali.co.uk>

>

> As the designer of this mod I have a few timely comments.

>

> First of all we are looking at updating this mod. The reason is that

> even using 4130 steel tube for the inner tubing it has a tendency to

> distort crating drag on the outer tube and causing the pivot to revert

> to the original arrangement. The future version will use an AN5 bolt

> instead of the AN4 bolt and inner tube. The bolt will be prevented from

> rotating by locating the head in a V shaped recess in a plate riveted


	


[quote]> on

> the outside of the side plate. An AN5 castellation nut will be used to

> retain the bolt. For UK builders the original prototype version of this

> update will need approval by the PFA, but assuming I have no problems

> with it, I am sure that Andy Draper will allow PFA inspectors to sign

> off the work. I intend to update my aircraft in January and will report

> when it has final approval.

>

> In the meantime anyone purchasing parts can anticipate being able to

> copy my update by purchasing the following:

>

> 100mm length of 3/8" stainless tube (wall thickness suitable to

> accommodate an AN5 bolt

> 2 AN5 bolts (length to match outside width between side plates with

> castellation nut fitted)

> 2 AN5 castellation nuts with split pins

> 4 thin AN5 sized washers to fit either side of the leg

> 2 pieces of aluminium plate to locate bolt head

> 4 rivets to attach aluminium plate to sideplate

> Small quantity of Redux to fix the stainless tube

>

> Once I have measured up I will be able to provide a more specific list

> of the parts required.

>

> Regards

>

> Nigel Charles

> --

- The Matronics Europa-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:

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h&jeuropa

Joined: 07 Nov 2006
Posts: 635

Posted: Sun Jan 14, 2007 11:14 am Post subject: Re: Europa Club Outrigger Pivot Bearing Mod

Nigel,



I've just finished upgrading the pivot bearing as you described.  To capture the AN5 bolt, I used one with a safety wire thru the head (AN5H-24) and replaced the close by AN525 screw with a AN3H-24 bolt and then safety wired the two together to prevent the AN5 bolt from rotating.  Works great!



Jim Butcher

N241BW

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