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Aileron hinges and sagging

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craigb(at)onthenet.com.au
Guest

Posted: Sat Oct 06, 2007 2:04 pm Post subject: Aileron hinges and sagging

i have seen a few of you talking about your ailerons sagging a bit at the

tips, and using a third hinge,

so i was thinking about moving the centre hinge inboard about 200mm and

fitting the third hinge during the

build. Can anyone see any problems with doing this, or will i stuff up some

thing i am not up to yet, or not

aware of. I realise i need to dodge the sites of the mass balance arms, but

other than that i cant see

why i shouldnt do this now



thanks



craig

6:53 PM

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grahamsingleton(at)btinte
Guest

Posted: Sat Oct 06, 2007 2:57 pm Post subject: Aileron hinges and sagging

Craig

I can't think why not either, just be certain all three hinges are in 

line which means care with initial fitting.

I don't quite agree with the manual here; at inital fit flox the hinges 

on jigged to a straight extrusion and let the flox cure before pulling 

the rivets because if you do that while the flox is wet you will 

probably distort something.

Graham



craig bastin wrote:

I realise i need to dodge the sites of the mass balance arms, but

 	  Quote: 	
		   other than that i cant see

 why i shouldnt do this now

 

 thanks

 

 craig

 6:53 PM

 

 

 

 

 

 


	


-- 

Graham Singleton



Tel: +441629820187

Mob: +447739582005

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jimpuglise(at)comcast.net
Guest

Posted: Sat Oct 06, 2007 3:55 pm Post subject: Aileron hinges and sagging

Craig-

  

 I am at about the same place you are and added a third hinge close to the wingtip.  When I did my initial fitting, the tip drooped about 3/16.  It appeared to me more like the aileron was warped than just sagging.  In retrospect, I would have been better off moving the center hinge a few inches inboard before I did so.  It sounds like you are on the right track.  The hinge material BTW is standard issue from AS.  

  

 Jim Puglise A-283

  

  >>   [quote][b]

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fklein(at)orcasonline.com
Guest

Posted: Sat Oct 06, 2007 7:03 pm Post subject: Aileron hinges and sagging

 	  Quote: 	
		   i have seen a few of you talking about your ailerons sagging a bit at 

 the tips, and using a third hinge, so i was thinking about moving the 

 centre hinge inboard about 200mm and fitting the third hinge during 

 the build.


	


Craig,



FWIW, I'd read about guys adding a 3rd hinge, and I'd had some concerns 

about the distance between the two hinges being long so I added a 5.5" 

hinge midway between the 2 as per plans. When it came to mounting the 

ailerons, I found that my tips sagged about 1/8" and ultimately added a 

2.5" hinge at the tip.



good luck,



Fred

A194

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sandford(at)melbpc.org.au
Guest

Posted: Sat Oct 06, 2007 8:51 pm Post subject: Aileron hinges and sagging

Craig



Welcome to the Forum.

I´ve been in Melbourne for 5 weeks and hadn´t heard you had actually

taken the plunge.

I see you have had plenty of good advise on the aileron hinge.

Another good place for an extra hinge is above the lower rudder hinge.

Have fun.

P.S. I got my video back thanks.



Lance Sandford

 	  Quote: 	
		   

 i have seen a few of you talking about your ailerons sagging a bit at the

 tips, and using a third hinge,

 so i was thinking about moving the centre hinge inboard about 200mm and

 fitting the third hinge during the

 build. Can anyone see any problems with doing this, or will i stuff up some

 thing i am not up to yet, or not

 aware of. I realise i need to dodge the sites of the mass balance arms, but

 other than that i cant see

 why i shouldnt do this now



 thanks



 craig

 6:53 PM

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ward.t(at)xtra.co.nz
Guest

Posted: Sat Oct 06, 2007 11:06 pm Post subject: Aileron hinges and sagging

Craig,

In the late 1990's, along time ago now, I visited Kim Prout in LA to see his 

project while building mine #294.

His father was present that day helping him. He used to work for McDonnell 

Corporation as , I think, an aerodynamics and he recommended having a 3rd 

hinge on the ailerons placed closer to the inner mass balance from the mid 

point. I have done this without any problems and certainly strengthens the 

aileron.

Europa brought out a MOD to incorporate an extended tail wheel for better 

control. On installing this he also recommended strengthening the hinge 

attachments to the rudder by doubling the length of each hinge. Another good 

idea due to the added forces on the rudder with the steering tailwheel.

All the best with the build,

Cheers,

Tim



Tim Ward

12 Waiwetu Street,

Fendalton,

CHRISTCHURCH 8052



Ph :64 03 3515166

Mob:  021 0640221



email:

ward.t(at)xtra.co.nz

---

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grahamsingleton(at)btinte
Guest

Posted: Sun Oct 07, 2007 4:04 am Post subject: Aileron hinges and sagging

Jim & Craig

forgot to mention in my last remark, don't put the third hinge in the 

middle for resonance reasons. Vibration will be damped with the hinge 

off centre

Graham



jimpuglise(at)comcast.net wrote:

 	  Quote: 	
		   Craig-

  

 I am at about the same place you are and added a third hinge close to 

 the wingtip.  When I did my initial fitting, the tip drooped about 

 3/16.  It appeared to me more like the aileron was warped than just 

 sagging.  In retrospect, I would have been better off moving the center 

 hinge a few inches inboard before I did so.  It sounds like you are on 

 the right track.  The hinge material BTW is standard issue from AS. 

  

 Jim Puglise A-283

  

  >>

 

 *

 

 

 *


	


-- 

Graham Singleton



Tel: +441629820187

Mob: +447739582005

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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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craigb(at)onthenet.com.au
Guest

Posted: Tue Oct 09, 2007 12:07 pm Post subject: Aileron hinges and sagging

yes i went for moving the "outer" hinge to 20mm inside the mass balance, and

then the new

outer third hinge about 80mm or so from the tip, just in case i need to trim

the length down a bit



thanks all



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