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Aileron Squeezing and bracket re-locating

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dean.psiropoulos(at)veriz
Guest

Posted: Mon Feb 06, 2006 8:11 pm Post subject: Aileron Squeezing and bracket re-locating

Scott how would you know that the aileron brackets are not installed exactly

the same or in the proper position?  I went through the "use the wing rib

shape cutout made of plywood to hold the aileron and flap in position"

exercise on my RV-6A and I submit that one simply cannot be precise using

such a method. 



Do you have some method of precisely locating both the bracket to the

aileron and then the aileron to the wing?  Do you also have a method of

doing this on a finished airplane?  And how do you know how much performance

you lose by squeezing versus relocating the hinge hole?  Is it significant

enough to be worth doing one over the other?  I had not heard of the "move

the aileron hinge up or down" method of doing this until recently, has Van's

changed their mind about using the squeeze method and now recommends using

the "move the bracket method" or is there a way of deciding which method to

use? 

 

Dean Psiropoulos

RV-6A   N197DM

Knee deep in Autocad and wire





__________________________ Original Messages ______________________________






 	  Quote: 	
		  I have found that the aileron brackets have not been installed exactly the

same for what ever reason and one end of the aileron hangs lower than the

other. 


	


  



 	  Quote: 	
		  My fix for a slightly heavy right wing was an aileron trim tab.  The "tab"

is a wooden wedge from the hardware store, intended to secure the head to a

sledge hammer. 


	




Scott Bilinski

RV-8a

cell 858-395-5094

		

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

Brings words and photos together (easily) with

 

 

 



________________________________  Message 13

____________________________________

Time: 10:31:41 AM PST US

From: Richard Dudley <rhdudley(at)att.net>

Subject: Re: Rudder Trim






Hi Robin,

I have not seen any dimensions or specifications in postings on the 

list. I have seen lots of RVs with wedges on the left side of their 

rudders. They often are made of aluminum or wood. When I began testing 

my -6A there was and obvious need for rudder trim. My solution was 

trailing edge balsa made for model airplanes that I found at a hobby 

shop. My procedure was to cut an arbitrary length of this material as a 

starting point. I believe that I started with 10 inches. I taped it onto 

the left trailing edge with the thickest part of the wedge aft using 

duct tape. The 10 inches turned out to be too much. So, I cut it in half 

and tried again. After several iterations, I ended up with about 6 

inches length. I then finished a 6" length with the paint I used on the 

plane and attached it with double stick foam tape. It has been in place 

for about 60 hours and the ball is in the center at cruise speeds.

Hope this helps.



Richard Dudley

-6A 75 hours



Robin Marks wrote:



 	  Quote: 	
		  



I have a 6A with no Rudder Trim. I have seen foam style wedges that are

applied to the lifting surface to act as fixed trim surfaces. I do not

know what the material is, what the best angles are and how they are

affixed onto the surface. I assume this has been discussed at length in

the archives. Can anyone give me a lead to what they are called as I

have looked in the archives but I don't think I am searching the proper

terms and there are a lot of listings on trim?

Thanks,



Robin



RV-6A - Needs Right  Rudder



Do Not Archive

 

 

 

  




	


 

 

 



________________________________  Message 14

____________________________________

Time: 10:43:46 AM PST US

From: "Terry Watson" <terry(at)tcwatson.com>

Subject: RE: aileron trimming by squeezing question






Stewart,



Here's a link to Van's instructions:



http://vansaircraft.com/pdf/Wing_Heavy.pdf



Terry



Listers,

Need to fix a slightly heavy right wing on a new

rocket. Please correct me if I am wrong here.

Seems one should squeeze the trailing edge

of the light wing.  Correct???

Thank you, Stewart Bergner



 

 

 



________________________________  Message 15

____________________________________

Time: 11:42:59 AM PST US

Subject: Re: Rudder Trim

From: "Rick Galati" <rick6a(at)yahoo.com>




Robin Marks wrote:

 	  Quote: 	
		   I have a 6A with no Rudder Trim. I have seen foam style wedges that are

 applied to the lifting surface to act as fixed trim surfaces. I do not

 know what the material is, what the best angles are and how they are

 affixed onto the surface. I assume this has been discussed at length in

 the archives. Can anyone give me a lead to what they are called as I

 have looked in the archives but I don't think I am searching the proper

 terms and there are a lot of listings on trim?Thanks, Robin RV-6A - Needs

Right
	


Rudder Do Not Archive

Robin



Here is the link and the description of wedge I use with great success.



http://www.epm-avcorp.com/trimtabinst.html



Here is a detail photograph of my installation:

http://www.vansairforce.com/community/showthread.php?p=26694#post26694

Rick Galati  RV-6A  "Darla"





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=10212#10212





 

 

 



________________________________  Message 16

____________________________________

Time: 11:49:51 AM PST US

Subject: RE: Rudder Trim

From: "Robin Marks" <robin(at)mrmoisture.com>






Richard,

	Thanks, that helps a lot. Did you place the trim high on the

rudder, low on the rudder? (seems like I have see them on the lower

section below the horz. stab) Did you place it perpendicular to the

horizon or running along the trailing edge? 



Thanks,

Robin

 

 

 



________________________________  Message 17

____________________________________

Time: 12:47:02 PM PST US

From: Gerald Richardson <gerric(at)shaw.ca>

Subject: Garmin GMA 346 audio panel




Does anyone have a copy of the Garmin GMA 347 audio panel 

installation and operational manual.



Also what experiences have you had with it.



Any comments on the duplex telephone interface



Thanks



Gerald Richardson

Medicine Hat, Alberta

Canada

-- 

02/04/2006

 



 

 

 



________________________________  Message 18

____________________________________

Time: 12:47:03 PM PST US

From: "Randy Lervold" <randy(at)romeolima.com>

Subject: Re: Sherwin williams GBP-988  question.






 	  Quote: 	
		   For what it's worth, i'll be switching to Marhyde when I finish the SW can

 i'm using now.  The people who have used both seem to agree that Marhyde

 provides a tougher, more durable finish.


	


Having used both products I'd agree with this assessment. But I prefer SEM 

to them both in terms of both the finish it leaves and its durability. To 

those that apply the primer without first Scothbriting the surface, no 

question it does NOT adhere as well. Dip your Scotchbrite pad in your 

solvent of choice when scuffing and you degrease at the same time. Here's my



two cents worth...

http://www.romeolima.com/RV3works/Airframe/airframe.htm#Primer



Randy Lervold

www.rv-3.com

 

 

 



________________________________  Message 19

____________________________________

Time: 01:19:23 PM PST US

From: Ron Lee <ronlee(at)pcisys.net>

Subject: Re: Garmin GMA 346 audio panel






See if this link works:



http://www2.mstewart.net:8080/Downloads/howtogetagarminmanual.htm

 	  Quote: 	
		  Does anyone have a copy of the Garmin GMA 347 audio panel

installation and operational manual.


	


 

 

 



________________________________  Message 20

____________________________________

Time: 02:03:50 PM PST US

From: Bert Murillo <bertrv6(at)gmail.com>

Subject: Great News FAA Medicals






Hi:



  I want to share the recent news, that  medical examiners, will be

permitted to reissue

3rd. class medical certificates, for pilots with Cardiovascular conditions.

 (list 5 conditions) you take all documents to the AME he or she will issue

the certificate.



The article is too long, but I encourage every one interested, to go to Aopa

on line,

\and read it..this will start in early 2006...



As I have said before, AOPA  really works for General Aviation and they have

the clout to do it...I hope every rv. builder is a member...we help them,

and help

ourselves...



If any one has any questions, contact me off list  ( I am just a member)



Bert



rv6a



Do not archive



 

 

 



________________________________  Message 21

____________________________________

Time: 02:25:57 PM PST US

From: linn Walters <pitts_pilot(at)bellsouth.net>

Subject: Re: Re: DO NOT ARCHIVE (and quoting too!)






Jim Anglin wrote:



 	  Quote: 	
		  



A very simple solution 



snip
	




 	  Quote: 	
		  And PLEASE stop quoting the messages in your reply.  I don't believe there

is
	


anyone here who will not know what you are talking about when reading your

reply

post.  It is redundant, and stupid to believe that a message needs to be

included

in a reply as long as the subject line is correct.

 	  Quote: 	
		  

Sorry, I disagree.  I see lots of emails with only a reply ..... and 
	


sometimes the reply doesn't fit the subject.  It is redundant.  Stupid? 

 I don't think so.  Maybe folks could trim comments past the last one??? 

 I dunno.

Linn



 	  Quote: 	
		  

jim (do i need to add do not archive ?)

 

 

 

  




	


 

 

 



________________________________  Message 22

____________________________________

Time: 04:43:23 PM PST US

From: Richard Dudley <rhdudley(at)att.net>

Subject: Re: Rudder Trim






Robin,



I can't look at it right now but, I believe that I put the wedge about 

midway on the rudder. The trailing edge of the wedge is flush with the 

trailing edge of the rudder. I think that the actual position along the 

trailing edge of the rudder is not important. I placed it where it 

looked ok to me.



Regards,



Richard



Robin Marks wrote:



 	  Quote: 	
		  



Richard,

	Thanks, that helps a lot. Did you place the trim high on the

rudder, low on the rudder? (seems like I have see them on the lower

section below the horz. stab) Did you place it perpendicular to the

horizon or running along the trailing edge? 



Thanks,

Robin

 

 

 

  




	


 

 

 



________________________________  Message 23

____________________________________

Time: 07:19:00 PM PST US

From: Rick McCraw <rmccraw(at)s4t.net>

Subject: Re: Auto signature






I am not a great fan of irrelevant messages, although I don't object 

strongly.  That said, I am not excited about adding Do Not Archive to an 

autosignature.  I, too, forget to add Do Not Archive, and I'm sure I'd 

forget to remove it were it there automatically.



In short, I would rather have some chaff in the archives than to lose 

valuable stuff because the author forgot to remove the DNA language.



While we're at it:  There is good stuff in the archives that is 

effectively lost because of misspellings in the subject line.  It screws 

up the search (I assume).  We all misspell things occasionally, but is 

there a reason not to correct the inevitable misspellings when they occur?



Rick McCraw

RV-7

 

 

 



________________________________  Message 24

____________________________________

Time: 11:42:08 PM PST US

From: "Trevor Mills" <millstrj(at)ozemail.com.au>

Subject: M T Props






Can anyone tell me anything about the electric 3 blade MT props as sold by

Eggenfellner

?



I would like to find the Model # and any comments would be great.



Thanks.



Trevor Mills 80605

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rv8a2001(at)yahoo.com
Guest

Posted: Mon Feb 06, 2006 9:01 pm Post subject: Aileron Squeezing and bracket re-locating

Basically you move the hinge when squeezing the TE is not enough. For me I had a very heavy right wing. I did the squeeze thing and it helped but not enough. I then saw Dan's web site and notice what he did and it imediately made sense. I measured the aileron gap to top wing skin, with the aileron in a neutral position. The right wing, from the cockpit, was good. the left wing, the inner hinge was lower by about .050. I moved the hinge .030 and it helped greatly, need to change ity to the full .050.



    

Scott how would you know that the aileron brackets are not installed exactly

the same or in the proper position? 

  Good question. I am not sure.

   

   

   

  I went through the "use the wing rib shape cutout made of plywood to hold the aileron and flap in position" exercise on my RV-6A and I submit that one simply cannot be precise using such a method. 

  You are correct.



Do you have some method of precisely locating both the bracket to the

aileron and then the aileron to the wing? 

  I finished building 2 years ago and dont remember the details exactly. There was no rocket sicence involved when I did it.....I think I just put them in place thinking it would be right.......if had to do it over again I would just be more careful.

   

   

  Do you also have a method of doing this on a finished airplane?

  On a finished airplane just like Dan's web site shows.

   

   

  And how do you know how much performance you lose by squeezing versus relocating the hinge hole? 

  I know of no performance loss or gain.

   

  Is it significant enough to be worth doing one over the other? I had not heard of the "move the aileron hinge up or down" method of doing this until recently, has Van's changed their mind about using the squeeze method and now recommends using the "move the bracket method" or is there a way of deciding which method to use? 

  The only time you move the bracket is when the squeeze method wont work. Van's for legal reason will never approve of people doing this.

Scott

		

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

Brings words and photos together (easily) with

- The Matronics RV-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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