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XS Main Gear Legs

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arwel.pritchard(at)powerc
Guest

Posted: Sat Sep 11, 2021 10:15 am Post subject: XS Main Gear Legs

Good evening



I have a feeling that the main gear legs on my XS are slightly out of 

line. I think its due to a couple of hard landings. When I looked at the 

plane (looking at the front from about 8m away) in the hangar today, it 

looks as if its leaning slightly to the right.



I have checked the sockets and the re-inforcing ply in the fuselage and 

all looks to be ok.



My question is, how easy is it to fit new legs? There is a video on 

youtube showing a guy changing one leg. It appears all he does is remove 

the socket bolt, pull out the leg, then insert the new one and replace 

the bolt, job done. Is there any re-alignment of any kind to do?



Any advice would be much appreciated.

Thanks

Arwel

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wdaniell.longport(at)gmai
Guest

Posted: Sat Sep 11, 2021 4:55 pm Post subject: XS Main Gear Legs

Arwel,

Before you tear your plane apart are you sure this isnt pilot paranoia.Â  Â (I suffer from this from time to time)

Measure at least 3 times in as many different ways as you can conceive.Â  Â And measure again.Â  Â And make sure your reference point is level.

It might also be the build.Â  Â One end of my tail is 13mm lower than the other despite my best efforts.Â  (Flies fine though.)

Will



William Daniell

+1 786 878 0246

On Sat, Sep 11, 2021, 14:18 arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)> wrote:



 	  Quote: 	
		  --> Europa-List message posted by: arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)>

 

 Good evening

 

 I have a feeling that the main gear legs on my XS are slightly out of 

 line. I think its due to a couple of hard landings. When I looked at the 

 plane (looking at the front from about 8m away) in the hangar today, it 

 looks as if its leaning slightly to the right.

 

 I have checked the sockets and the re-inforcing ply in the fuselage and 

 all looks to be ok.

 

 My question is, how easy is it to fit new legs? There is a video on 

 youtube showing a guy changing one leg. It appears all he does is remove 

 the socket bolt, pull out the leg, then insert the new one and replace 

 the bolt, job done. Is there any re-alignment of any kind to do?

 

 Any advice would be much appreciated.

 

 

 Thanks

 

 

 Arwel

 

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duanefamly(at)aol.com
Guest

Posted: Sat Sep 11, 2021 9:25 pm Post subject: XS Main Gear Legs

Well...while I have a conventional gear.....if I had to approach this problem I would look for differences between the left and right gear.....first I would place a level from the right sill to the left sill to confirm there is a tilt. Then I would place a straight edge horizontally across the face of each wheel to see if either have any toe-in or toe-out. Then place that straight edge vertically to check for camber.  I would imagine that both the toe and camber should be pretty close to the same when you compare the two wheels. You could possibly lay a digital level onto each leg to compare both readings. 

 

  Mike Duane N377EA

  Europa XS 

  Chandler, AZ, USA

 

 

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Duncan McFadyean

Joined: 18 Jan 2011
Posts: 220

Posted: Sun Sep 12, 2021 1:48 am Post subject: XS Main Gear Legs

It might also be the effect of rolling the a/c backwards against the toe-in of the gear; Other aircraft (eg Jabiru) display this effect.   

Otherwise, it takes accident damage to induce a permanent set to the taper-rod legs of a Rans S6, for example.   



   

Duncan McF.    	  Quote: 	
		      On 12 September 2021 at 01:55 William Daniell <wdaniell.longport(at)gmail.com> wrote:     

     

         Arwel,           

             Before you tear your plane apart are you sure this isnt pilot paranoia.   (I suffer from this from time to time)      

             

      

             Measure at least 3 times in as many different ways as you can conceive.   And measure again.   And make sure your reference point is level.      

             

      

             It might also be the build.   One end of my tail is 13mm lower than the other despite my best efforts.  (Flies fine though.)      

             

      

             Will        

        

               William Daniell         

+1 786 878 0246       

      

      

                     On Sat, Sep 11, 2021, 14:18 arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)> wrote:         

       

        	  Quote: 	
		          --> Europa-List message posted by: arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)>         

         

 Good evening         

         

 I have a feeling that the main gear legs on my XS are slightly out of         

 line. I think its due to a couple of hard landings. When I looked at the         

 plane (looking at the front from about 8m away) in the hangar today, it         

 looks as if its leaning slightly to the right.         

         

 I have checked the sockets and the re-inforcing ply in the fuselage and         

 all looks to be ok.         

         

 My question is, how easy is it to fit new legs? There is a video on         

 youtube showing a guy changing one leg. It appears all he does is remove         

 the socket bolt, pull out the leg, then insert the new one and replace         

 the bolt, job done. Is there any re-alignment of any kind to do?         

         

 Any advice would be much appreciated.         

         

         

 Thanks         

         

         

 Arwel         

         

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 pa-List" rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/Navigator?Europa-List         

 ===========         

 FORUMS -         

 eferrer noreferrer" target="_blank">http://forums.matronics.com         

 ===========         

 WIKI -         

 errer noreferrer" target="_blank">http://wiki.matronics.com         

 ===========         

 b Site -         

           -Matt Dralle, List Admin.         

 rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/contribution         

 ===========

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arwel.pritchard(at)powerc
Guest

Posted: Sun Sep 12, 2021 11:21 am Post subject: XS Main Gear Legs

I've been doing a weight and balance report today and noticed that the right hand side tyre has worn unevenly, suggesting that the leg is not straight. Hopefully this will confirm my worst fears, what do you think guys? 



Best regards



Arwel





-------- Original message --------

From: D McFadyean <ami-mcfadyean(at)talktalk.net>

Date: Sun, 12 Sep 2021, 10:48

To: europa-list(at)matronics.com

Subject: Re: Europa-List: XS Main Gear Legs

 	  Quote: 	
		      

It might also be the effect of rolling the a/c backwards against the toe-in of the gear; Other aircraft (eg Jabiru) display this effect.   

Otherwise, it takes accident damage to induce a permanent set to the taper-rod legs of a Rans S6, for example.   

   

Duncan McF.    	  Quote: 	
		      On 12 September 2021 at 01:55 William Daniell <wdaniell.longport(at)gmail.com> wrote:                   Arwel,                        Before you tear your plane apart are you sure this isnt pilot paranoia.Â  Â (I suffer from this from time to time)      

                   

             Measure at least 3 times in as many different ways as you can conceive.Â  Â And measure again.Â  Â And make sure your reference point is level.      

                   

             It might also be the build.Â  Â One end of my tail is 13mm lower than the other despite my best efforts.Â  (Flies fine though.)      

                   

             Will                               William Daniell         +1 786 878 0246       

      

                           On Sat, Sep 11, 2021, 14:18 arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)> wrote:                

        	  Quote: 	
		          --> Europa-List message posted by: arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)>                   Good evening                   I have a feeling that the main gear legs on my XS are slightly out of          line. I think its due to a couple of hard landings. When I looked at the          plane (looking at the front from about 8m away) in the hangar today, it          looks as if its leaning slightly to the right.                   I have checked the sockets and the re-inforcing ply in the fuselage and          all looks to be ok.                   My question is, how easy is it to fit new legs? There is a video on          youtube showing a guy changing one leg. It appears all he does is remove          the socket bolt, pull out the leg, then insert the new one and replace          the bolt, job done. Is there any re-alignment of any kind to do?                   Any advice would be much appreciated.                            Thanks                            Arwel                   ===========          pa-List" rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/Navigator?Europa-List          ===========          FORUMS -          eferrer noreferrer" target="_blank">http://forums.matronics.com          ===========          WIKI -          errer noreferrer" target="_blank">http://wiki.matronics.com          ===========          b Site -          Â  Â  Â  Â  Â  -Matt Dralle, List Admin.          rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/contribution          ===========                                           	
      

     

    

   	
   

Â

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budyerly@msn.com

Joined: 05 Oct 2019
Posts: 288
Location: Florida USA

Posted: Sun Sep 12, 2021 1:48 pm Post subject: XS Main Gear Legs

Arwel, 

Donâ€™t be alarmed by the tire wear. 

It is a shame the manual doesnâ€™t emphasize the camber angle of the mains.  The tire wear on the outside is going to happen.  See Chapter 29T. 

Note that the gear, with the wheels off (if perfectly built) should have the  axles aligned with the longitudinal axis of the fuselage and the camber angle (top of the tire towed out) is almost an inch.  Hence tire wear. 

If both tires are wearing evenly, the plane may look like it is leaning a bit,  but if the gear legs arenâ€™t loose or bent donâ€™t panic.   

  

Iâ€™ve seen guys put the gear in out of alignment during the build.  During the annual, I pulled the wheels, measured everything and I canâ€™t fix a bad build.  Heavy Europaâ€™s (1000 lb empty weight) suffer gear leg bends.  It happens. 

  

Rarely does a home builder get the gear perfect.  I pride myself on a good jig and careful work, but the gear legs are slightly different, and a few firm landings may tweak the gear a bit even when built perfectly.   

  

We have a similar problem in the RV community (our Europa trigear legs are extremely  similar to the RV4 legs).  The gear  are slanted aft on the RV and they tend to bend outward and twist back making for toe out which on a conventional gear aircraft is less than ideal, but livable.  Our gear twist outboard also and of course bend upward reducing the camber and creating toe out.   

  

All you can do is on the annual, jack the plane off the gear, break out the  chalk line, drop a plumb bob off the tail and from between the nose gear attachments (the nose gear is rarely perfectly straight) then while servicing the tires lay a straight angle iron on the floor and check for yourself.  You canâ€™t do it with the gear spindles on blocks.  Because the gear obviously bends and twists with the weight.  (There are pictures of my cradle on line which I frequently use.) Some put a block under the nose tire, lift the tail by the stab tubes and put a trestle (saw horse) under the tailpost.  With the wings off, the main wheels keep it from rolling over, then block the main gear lightly, pull the wheels off and start a quick measure. 

  

By the way, nice looking tire tread.  A lot of landing left.  (Personally, I donâ€™t swap the tires left to right as it is easier to just put on new tires since you have to swap wheels also.)  Itâ€™s an airplane, it costs money to keep flying. 

  

Your lucky, itâ€™s our anniversary yesterday so weâ€™re going out to eat so Iâ€™ll  save you all my drivel. 

  

Best Regards, 

Bud Yerly 

  

  

   

From: owner-europa-list-server(at)matronics.com  <owner-europa-list-server(at)matronics.com> On Behalf Of ?arwel.pritchard(at)powercom.ltd.uk?

 Sent: Sunday, September 12,  2021 3:22 PM

 To: europa-list(at)matronics.com

 Subject: Re: Europa-List: XS Main Gear Legs 

 

   

I've been doing a weight and balance report today and noticed that the right hand side tyre has worn unevenly, suggesting that the leg is not straight.   

Hopefully this will confirm my worst fears, what do you think guys?  

  



 Best regards  

  

  

Arwel 

 

 

  



 

 -------- Original message --------

 From: D McFadyean <ami-mcfadyean(at)talktalk.net (ami-mcfadyean(at)talktalk.net)>

 Date: Sun, 12 Sep 2021, 10:48

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

 Subject: Re: Europa-List: XS Main Gear Legs  	  Quote: 	
		    

It might also be the effect of rolling the a/c backwards against the toe-in of the gear; Other aircraft (eg Jabiru) display this effect. 

Otherwise, it takes accident damage to induce a permanent set to the taper-rod legs of a Rans S6, for example. 

  

Duncan  McF.  	  Quote: 	
		   

On 12 September 2021 at 01:55 William Daniell <wdaniell.longport(at)gmail.com (wdaniell.longport(at)gmail.com)> wrote:   

Arwel,   

   

Before you tear your plane apart are you sure this isnt pilot paranoia.   (I suffer from this from time to time)  

  

  

  

Measure at least 3 times in as many different ways as you can conceive.   And measure again.   And make sure your reference point is level.  

  

  

  

It might also be the build.   One end of my tail is 13mm lower than the other despite my best efforts.  (Flies fine though.)  

  

  

  

Will   

William Daniell 

 +1 786 878 0246  

 

 

    

On Sat, Sep 11, 2021, 14:18 arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)> wrote:  

  	  Quote: 	
		   

--> Europa-List message posted by: arwel pritchard <arwel.pritchard(at)powercom.ltd.uk (arwel.pritchard(at)powercom.ltd.uk)> 

 

 Good evening 

 

 I have a feeling that the main gear legs on my XS are slightly out of 

 line. I think its due to a couple of hard landings. When I looked at the 

 plane (looking at the front from about 8m away) in the hangar today, it 

 looks as if its leaning slightly to the right. 

 

 I have checked the sockets and the re-inforcing ply in the fuselage and 

 all looks to be ok. 

 

 My question is, how easy is it to fit new legs? There is a video on 

 youtube showing a guy changing one leg. It appears all he does is remove 

 the socket bolt, pull out the leg, then insert the new one and replace 

 the bolt, job done. Is there any re-alignment of any kind to do? 

 

 Any advice would be much appreciated. 

 

 

 Thanks 

 

 

 Arwel 

 

 =========== 

 pa-List" rel="noreferrer  noreferrer" target="_blank">http://www.matronics.com/Navigator?Europa-List 

 =========== 

 FORUMS - 

 eferrer noreferrer" target="_blank">http://forums.matronics.com 

 =========== 

 WIKI - 

 errer noreferrer" target="_blank">http://wiki.matronics.com 

 =========== 

 b Site - 

           -Matt Dralle, List Admin. 

 rel="noreferrer  noreferrer" target="_blank">http://www.matronics.com/contribution 

 =========== 

  <![if !supportLineBreakNewLine]> <![endif]>

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duanefamly(at)aol.com
Guest

Posted: Sun Sep 12, 2021 4:11 pm Post subject: XS Main Gear Legs

Bud and Anita, 

  CONGRATULATIONS on another year of marital bliss. I hope you get oh so many more.

  

 

  Mike Duane

  

 

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SPURPURA

Joined: 04 Apr 2015
Posts: 68
Location: KAPV

Posted: Mon Sep 13, 2021 4:02 am Post subject: Re: XS Main Gear Legs

Looking at your tire wear on the outside of tire reminds me of my own tires. They both wear on the outside first and more quickly on the pilotâ€™s side as I fly solo more often. I just flip the tire over on the rim so they wear down evenly.

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_________________
N951EU - Tri-gear & 912ULS, N77EU- Mono & 914
I'D RATHER HAVE A BOTTLE IN FRONT OF ME THAN A FRONTAL LABOTAMY.

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