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Monos only need open

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Fergus Kyle

Joined: 03 Jun 2007
Posts: 291
Location: Burlington ON Canada

Posted: Mon Apr 28, 2008 1:42 pm Post subject: Monos only need open

Gen'mens,	

	I read with interest the byplay from Nigel and Graham, plus others

regarding the laying 

of blame for ground-looping. I agree entirely with their appreciations.

	Thoughts then turned to unrequested retraction of outriggers and I

leapt to the wing to 

see what happens. Apparently my outrigger(s) unlock if the flaps retract

only minutely. It then

occurred to me that I may not maintain sufficient pressure on the flap

control tube to prevent

a bounce allowing the flap to bounce up and unlock the shopping-cart wheel.

	Have you tried this? Is it possible? ...or am I unnecessarily

concerned - or have I taken 

too much off the particular shape which controls this?

	Tricycles need not apply.

Ferg

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rparigor(at)suffolk.lib.n
Guest

Posted: Tue Apr 29, 2008 11:54 am Post subject: Monos only need open

Hi Ferg



Its been a while since I fooled with outrigger mechanism, but after I fooled with mine, once down and locked, it was latched real well until you retracted flaps a lot. Flaps could be retracted well beyond what I figured could ever happen while taxing before they would allow outriggers to retract. Thus call it "hysteresis", once detente falls in place, you need to go well past that flap position the other direction to lift detente out of position. I forget the piece that needed some precision filing for the detente to fall into place, but if you file too much, then the outriggers in the up position will flop around too much. On the other hand if you don't file enough, then the detente will not fall into position. The later sounds like what you have. Note that hot and cold can move things so you best check clearance when hot and cold and allow for worst case. I am installing microswitchs to indicate if detente is fully in place. You also best not actuate mechanism without lubri

 cation. Since you are fooling in this area, check as per an old service note from europa that a piece of aluminium part has proper tempering, test is to deflect, if it does not spring back, replace it. Also check Paul McAllisters report (posted) on wearing on his outriggers and his position and choice of hardware.



Good Luck

Ron Parigoris

My Dad was a typewriter and mechanical adding machine repairman. Since a lot of his knowledge rubbed off, it will make understanding "why" my outrigger collapsed a lot easier!

Visit -  www.EuropaOwners.org

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air.guerner(at)wanadoo.fr
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Posted: Tue Apr 29, 2008 11:55 am Post subject: Monos only need open

Ferg,

  

 Have a look at page 9-11 of the Builders Manual. In the flaps  down position, there should be a gap in the OR5 slot. This allows the flap to  move slightly without affecting the outrigger  mechanism.

 Up to now it works for me. Another thing to look at -on high  time monowheels- is the wear in the outrigger pivot which allows the AN-11 bolt  to catch one the side plates and prevent the outrigger to lock. This is what  happened to Paul-the-Aviator last year. After Paul's mishap I checked my  outriggers and found that the tip of the bolt was rubbing on the side plates on  both outriggers. One solution is to shorten the bolt slightly. As shown on  the Manual, you should have 2 washers under the bolt head and no washer under  the nut. As an additionnal precaution, chamfer the side plates to prevent  the bolt to catch.   

 Regards

 Remi

  

F-PGKL, XS  S/N395 monowheel,  912S, Airmaster,  560 hours  <?xml:namespace prefix =  o ns = "urn:schemas-microsoft-com:office:office"  /> 

 



 "Apparently my outrigger(s) unlock if the flaps retract

only minutely.  It then

occurred to me that I may not maintain sufficient pressure on the  flap

control tube to prevent

a bounce allowing the flap to bounce up and  unlock the shopping-cart wheel."



    [quote][b]

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