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Trim options

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scott(at)s-f-x.com
Guest

Posted: Fri Dec 28, 2012 6:29 am Post subject: Trim options

Hi



Happy Xmas everyone.

Just hoping some of you guys might have trim tabs rather than the spring bias type pitch trim system - please let me know if the details for this build/mod are available as I found a nice linear actuator but the LAA (EAA UK equivalent) are starting to pick holes in the design. I need 60mm of travel so using Ray Allen servos directly is not feasible. If anyone has aileron trim without springs that would also be of interest.

Cheers



 Scott MacIntyre

 

 [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

gregsmi

Joined: 01 Jan 2011
Posts: 268
Location: Topeka, KS

Posted: Fri Dec 28, 2012 8:56 am Post subject: Trim options

Scott, Aerodesigns did not like trim servos because of the added weight to  the control surface. They were very concerned about flutter. 

  

 Greg

  

  In a message dated 12/28/2012 8:30:20 A.M. Central Standard Time,  scott(at)s-f-x.com writes:

  	  Quote: 	
		  Hi    



   Happy Xmas everyone.

   



   Just hoping some of you guys might have trim tabs rather than the spring    bias type pitch trim system - please let me know if the details for this    build/mod are available as I found a nice linear actuator but the LAA (EAA UK    equivalent) are starting to pick holes in the design. I need 60mm of travel so    using Ray Allen servos directly is not feasible. If anyone has aileron trim    without springs that would also be of interest.

   



   Cheers

   

            Scott MacIntyre

   



   



   

 	  Quote: 	
		  



tp://www.aeroelectric.com/">www.aeroelectric.com

/ href="http://www.buildersbooks.com/">www.buildersbooks.com

http://www.homebuilthelp.com/">www.homebuilthelp.com

p://www.matronics.com/contribution">http://www.matronics.com/contribution

ef="http://www.matronics.com/Navigator?Pulsar-List">http://www.matronics.com/Navigator?Pulsar-List

s.matronics.com/">http://forums.matronics.com



	
	


 [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

lwheat2083(at)gmail.com
Guest

Posted: Fri Dec 28, 2012 11:34 am Post subject: Trim options

I have electric trims on my Pulsar III if you are interested. Have pics as well. Cheers, Larry N852LW



On Fri, Dec 28, 2012 at 6:29 AM, Scott MacIntyre <scott(at)s-f-x.com (scott(at)s-f-x.com)> wrote:

  	  Quote: 	
		  Hi



Happy Xmas everyone.

Just hoping some of you guys might have trim tabs rather than the spring bias type pitch trim system - please let me know if the details for this build/mod are available as I found a nice linear actuator but the LAA (EAA UK equivalent) are starting to pick holes in the design. I need 60mm of travel so using Ray Allen servos directly is not feasible. If anyone has aileron trim without springs that would also be of interest.

 



Cheers



   Scott MacIntyre





 

  	  Quote: 	
		  



_blank">www.aeroelectric.com

.com" target="_blank">www.buildersbooks.com

="_blank">www.homebuilthelp.com

_blank">http://www.matronics.com/contribution

arget="_blank">http://www.matronics.com/Navigator?Pulsar-List

tp://forums.matronics.com



	


	




-- 

Larry Wheat  [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

briana(at)xtra.co.nz
Guest

Posted: Fri Dec 28, 2012 12:20 pm Post subject: Trim options

Scott,



Scott

Trimming the position of the centre point of the pitch springs works just fine. Many of us use a lever arrangement with the servo connected at about the mid point of the lever, giving 2x the travel to the connection point of the springs.

Also the very light springs used on some of the aileron trim systems is not even noticeable, in terms of the stick force to deflect the ailerons in flight. My system has the servo connected to a small pulley, and via a cable to the spring on one side only. The 2x movement gain works out at exactly the right amount of trim change to compensate for passenger and fuel loads.

Brian



On 29/12/2012, at 3:29 AM, Scott MacIntyre <scott(at)s-f-x.com (scott(at)s-f-x.com)> wrote:

[quote]Hi



Happy Xmas everyone.

Just hoping some of you guys might have trim tabs rather than the spring bias type pitch trim system - please let me know if the details for this build/mod are available as I found a nice linear actuator but the LAA (EAA UK equivalent) are starting to pick holes in the design. I need 60mm of travel so using Ray Allen servos directly is not feasible. If anyone has aileron trim without springs that would also be of interest.

Cheers



 Scott MacIntyre

 

  	  Quote: 	
		  



href="http://www.aeroelectric.com/">www.aeroelectric.com

href="http://www.buildersbooks.com/">www.buildersbooks.com

href="http://www.homebuilthelp.com/">www.homebuilthelp.com

href="http://www.matronics.com/contribution">http://www.matronics.com/contribution

href="http://www.matronics.com/Navigator?Pulsar-List">http://www.matronics.com/Navigator?Pulsar-List

href="http://forums.matronics.com/">http://forums.matronics.com



	


[b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

lwheat2083(at)gmail.com
Guest

Posted: Fri Dec 28, 2012 2:38 pm Post subject: Trim options

I used a linear actuator, very small with 144 in oz of force. Works very well. If you are interested I have picks and a supplier that I would be glad to forward to you. Cheers, Larry N852LW



 On Fri, Dec 28, 2012 at 6:29 AM, Scott MacIntyre <scott(at)s-f-x.com (scott(at)s-f-x.com)> wrote:

 	  Quote: 	
		   Hi



Happy Xmas everyone.

Just hoping some of you guys might have trim tabs rather than the spring bias type pitch trim system - please let me know if the details for this build/mod are available as I found a nice linear actuator but the LAA (EAA UK equivalent) are starting to pick holes in the design. I need 60mm of travel so using Ray Allen servos directly is not feasible. If anyone has aileron trim without springs that would also be of interest.

 



Cheers



   Scott MacIntyre





 

  	  Quote: 	
		  



_blank">www.aeroelectric.com

.com" target="_blank">www.buildersbooks.com

="_blank">www.homebuilthelp.com

_blank">http://www.matronics.com/contribution

arget="_blank">http://www.matronics.com/Navigator?Pulsar-List

tp://forums.matronics.com



	


	




-- 

Larry Wheat  [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

mjb777

Joined: 11 Aug 2012
Posts: 54
Location: Dubai UAE

Posted: Fri Dec 28, 2012 2:52 pm Post subject: Trim options

Any chance you could post the details on the list larry?Thanks,Matt. Empower your Business with BlackBerry® and Mobile Solutions from Etisalat

From:  Larry Wheat <lwheat2083(at)gmail.com> 

Sender:  owner-pulsar-list-server(at)matronics.com 

Date: Fri, 28 Dec 2012 14:37:10 -0800

To: <pulsar-list(at)matronics.com>

ReplyTo:  pulsar-list(at)matronics.com

Subject: Re: Pulsar-List: Trim options

I used a linear actuator, very small with 144 in oz of force. Works very we= ll. If you are interested I have picks and a supplier that I would be glad = to forward to you. Cheers, Larry N852LW

 On Fri, Dec 28, 2012 at 6:29 AM, Scott MacIntyre <scott(at)s-f-x.com> wrote:

 	  Quote: 	
		   Hi

Happy Xmas everyo= ne.

Just hoping some of you guys might have trim t= abs rather than the spring bias type pitch trim system - please let me know=  if the details for this build/mod are available as I found a nice linear a= ctuator but the LAA (EAA UK equivalent) are starting to pick holes in the d= esign. I need 60mm of travel so using Ray Allen servos directly is not feas= ible. If anyone has aileron trim without springs that would also be of inte= rest.

Cheers

   Scott MacIntyre

  	  Quote: 	

_blank">www.aeroelectric.com

.com" target=3D"_blank">www.buildersbooks.com

=3D"_blank">www.homebuilthelp.com

_blank">http://www.matronics.com/contribution

arget=3D"_blank">http://www.matronics.com/Navigator?Pulsar-List

tp://forums.matronics.com

</= div>-- 

Larry Wheat  [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

_________________
Pulsar 1 TD Kit.
Captain B777.
Licenced Aircraft Maintenance Engineer.

lwheat2083(at)gmail.com
Guest

Posted: Fri Dec 28, 2012 3:02 pm Post subject: Trim options

I will try I am haaving nothing but problems with Windows 8, really sucks. Cheers



On Fri, Dec 28, 2012 at 2:50 PM,  <mattbrock777(at)gmail.com (mattbrock777(at)gmail.com)> wrote:

  	  Quote: 	
		  Any chance you could post the details on the list larry?



Thanks,



Matt. 



Empower your Business with BlackBerry® and Mobile Solutions from Etisalat

 From:  Larry Wheat <lwheat2083(at)gmail.com (lwheat2083(at)gmail.com)> 

Sender:  owner-pulsar-list-server(at)matronics.com (owner-pulsar-list-server(at)matronics.com) 

Date: Fri, 28 Dec 2012 14:37:10 -0800

To: <pulsar-list(at)matronics.com (pulsar-list(at)matronics.com)>

ReplyTo:  pulsar-list(at)matronics.com (pulsar-list(at)matronics.com)

 Subject: Re: Trim options

I used a linear actuator, very small with 144 in oz of force. Works very we= ll. If you are interested I have picks and a supplier that I would be glad = to forward to you. Cheers, Larry N852LW



 On Fri, Dec 28, 2012 at 6:29 AM, Scott MacIntyre <scott(at)s-f-x.com> wrote:

 	  Quote: 	
		   Hi



Happy Xmas everyo= ne.

Just hoping some of you guys might have trim t= abs rather than the spring bias type pitch trim system - please let me know=  if the details for this build/mod are available as I found a nice linear a= ctuator but the LAA (EAA UK equivalent) are starting to pick holes in the d= esign. I need 60mm of travel so using Ray Allen servos directly is not feas= ible. If anyone has aileron trim without springs that would also be of inte= rest.

 



Cheers



   Scott MacIntyre





 

  	  Quote: 	
		  



_blank">www.aeroelectric.com

.com" target=3D"_blank">www.buildersbooks.com

=3D"_blank">www.homebuilthelp.com

_blank">http://www.matronics.com/contribution

arget=3D"_blank">http://www.matronics.com/Navigator?Pulsar-List

tp://forums.matronics.com



	


	


-- 

Larry Wheat   	  Quote: 	
		  



3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D



	


 

	




-- 

Larry Wheat  [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

mjb777

Joined: 11 Aug 2012
Posts: 54
Location: Dubai UAE

Posted: Fri Dec 28, 2012 3:09 pm Post subject: Trim options

I ditched it when I bought a new laptop recently. Went back to 7. 



Good luck!!



Matt. 

Empower your Business with BlackBerry® and Mobile Solutions from Etisalat



--

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

_________________
Pulsar 1 TD Kit.
Captain B777.
Licenced Aircraft Maintenance Engineer.

MyronTruex(at)comcast.net
Guest

Posted: Sat Dec 29, 2012 9:25 am Post subject: Trim options

If I needed to build another trim kit I would use the mac servo switches on the stick again and my own actuators. The Macs have small travel distances and are not very powerful. I used a linear actuator on my 40 foot motorhome to provide center trimming for crosswinds and road conditions. Works great.  

   

http://dcactuators.com/Detail.asp?Product_ID=302.130_6104T  

   

Myron  

30TX   

         

  

From: owner-pulsar-list-server(at)matronics.com [mailto:owner-pulsar-list-server(at)matronics.com] On Behalf Of Brian Anderson

 Sent: Friday, December 28, 2012 12:20 PM

 To: pulsar-list(at)matronics.com

 Subject: Re: Trim options  

  

   

Scott,    

   

    

Scott  

    

   

    

Trimming the position of the centre point of the pitch springs works just fine. Many of us use a lever arrangement with the servo connected at about the mid point of the lever, giving 2x the travel to the connection point of the springs.  

    

   

    

Also the very light springs used on some of the aileron trim systems is not even noticeable, in terms of the stick force to deflect the ailerons in flight. My system has the servo connected to a small pulley, and via a cable to the spring on one side only. The 2x movement gain works out at exactly the right amount of trim change to compensate for passenger and fuel loads.  

    

   

    

Brian  

    

   

    

       

On 29/12/2012, at 3:29 AM, Scott MacIntyre <scott(at)s-f-x.com (scott(at)s-f-x.com)> wrote:  

  



 

     

Hi    

   

    

Happy Xmas everyone.  

    

   

    

Just hoping some of you guys might have trim tabs rather than the spring bias type pitch trim system - please let me know if the details for this build/mod are available as I found a nice linear actuator but the LAA (EAA UK equivalent) are starting to pick holes in the design. I need 60mm of travel so using Ray Allen servos directly is not feasible. If anyone has aileron trim without springs that would also be of interest.  

    

   

    

Cheers  

    

             

Scott MacIntyre  

    

   

    

   

    

   

  

  

   

  

   

  

   

   	  Quote: 	
		    href="http://www.aeroelectric.com/">www.aeroelectric.comhref="http://www.buildersbooks.com/">www.buildersbooks.comhref="http://www.homebuilthelp.com/">www.homebuilthelp.comhref="http://www.matronics.com/contribution">http://www.matronics.com/contributionhref="http://www.matronics.com/Navigator?Pulsar-List">http://www.matronics.com/Navigator?Pulsar-Listhref="http://forums.matronics.com/">http://forums.matronics.com 	


  

  

   

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       [quote][b]

- The Matronics Pulsar-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:

http://www.matronics.com/Navigator?Pulsar-List

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