Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Weight & Balance

Matronics Email Lists Forum Index -> Europa-List

View previous topic :: View next topic

Author Message

Fred Klein

Joined: 26 Mar 2012
Posts: 503

Posted: Fri Dec 27, 2013 9:10 am Post subject: Weight & Balance

I'm wondering if there's a mono-builder out there who has data from his (or her?) C of G calculations which would reveal how much the C of G shifts as a consequence of finish painting?

 

In other words, I'm wondering if I have an otherwise complete aircraft in primer and do a preliminary C of G calculation, how much of a shift should I estimate will occur when painting is complete?



Fred

- The Matronics Europa-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?Europa-List

Richard Wheelwright

Joined: 15 Sep 2008
Posts: 111
Location: Halifax, West Yorkshire, UK

Posted: Fri Dec 27, 2013 10:36 am Post subject: Weight & Balance

Fred

     If you know the wight of your finished aircraft and then paint it, it will balance out exactly the same but be heaver, there should be no shift unless you put all the paint on the rear fin and non on the cowls. I hope I have understood your Question.



 

====================



Richard Wheelwright

====================

         From: Fred Klein <fklein(at)orcasonline.com>

 To: europa-list(at)matronics.com 

 Sent: Friday, 27 December 2013, 17:09

 Subject: Weight & Balance

  

 

--> Europa-List message posted by: Fred Klein <fklein(at)orcasonline.com (fklein(at)orcasonline.com)>



I'm wondering if there's a mono-builder out there who has data from his (or her?) C of G calculations which would reveal how much the C of G shifts as a consequence of finish painting?

 

In other words, I'm wondering if I have an otherwise complete aircraft in primer and do a preliminary C of G calculation, how much  of a shift should I estimate will occur when painting is complete?



on" sp;                     &matronics.com/Navigator?Europa-List" target="_blank">http://www.matronicsttp://forums.matronics.com/" target="_blank">http://forums.matronics.com<================

 

 

  

 [quote][b]

- The Matronics Europa-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?Europa-List

_________________
Richard Wheelwright
G-IRPW
First Flight 24th July 2013

peterz(at)zutrasoft.com
Guest

Posted: Fri Dec 27, 2013 11:53 am Post subject: Weight & Balance

I'm not convinced of that, since the paint density is constant throughout and the moment arm is much much longer for the paint on the fin than on the cowls.



I would expect the cg to move rearward slightly....how much I'd have no idea

- The Matronics Europa-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?Europa-List

Richard Wheelwright

Joined: 15 Sep 2008
Posts: 111
Location: Halifax, West Yorkshire, UK

Posted: Fri Dec 27, 2013 12:08 pm Post subject: Weight & Balance

Yes, Thinking a little more about it, you are probably correct, but the movement will be small.



 

====================



Richard Wheelwright

=============================================

        From: Pete <peterz(at)zutrasoft.com>

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

 Sent: Friday, 27 December 2013, 19:52

  Subject: Re: Europa-List: Weight & Balance

  

 

I'm not convinced of that, since the paint density is constant throughout and the moment arm is much much longer for the paint on the fin than on the cowls.

I would expect the cg to move rearward slightly....how much I'd have no idea.

Cheers,

Pete

a239



On Dec 27, 2013, at 1:35 PM, Richard Wheelwright <rpwheelwright(at)yahoo.co.uk (rpwheelwright(at)yahoo.co.uk)> wrote:

[quote]Fred

     If you know the wight of your finished aircraft and then paint it, it will balance out exactly the same but be heaver, there should be no shift unless you put all the paint on the rear fin and non on the cowls. I hope I have understood your Question.



 

====================



Richard Wheelwright

====================

         From: Fred Klein <fklein(at)orcasonline.com (fklein(at)orcasonline.com)>

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

 Sent: Friday, 27 December 2013, 17:09

 Subject: Weight & Balance

  

 

--> Europa-List message posted by: Fred Klein <fklein(at)orcasonline.com (fklein(at)orcasonline.com)>



I'm wondering if there's a mono-builder out there  who has data from his (or her?) C of G calculations which would reveal how much the C of G shifts as a consequence of finish painting?

 

In other words, I'm wondering if I have an otherwise complete aircraft in primer and do a preliminary C of G calculation, how much  of a shift should I estimate will occur when painting is complete?



on" sp;                     &matronics.com/Navigator?Europa-List" target="_blank">http://www.matronicsttp://forums.matronics.com/" target="_blank">http://forums.matronics.com<================

 

 

  

  	  Quote: 	
		  


D=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

ot;">www.aeroelectric.com

books.com"">www.buildersbooks.com

quot;">www.homebuilthelp.com

quot;">www.mypilotstore.com

">www.mrrace.com

ot;">http://www.matronics.com/contribution

D=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

a-List"">http://www.matronics.com/Navigator?Europa-List

D=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

//forums.matronics.com

D=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

	


www.aw" target="_blank" href="http://www.buildersbooks.com/">www.buildersboo    * My Pilot Store www=   --> http://www.matronics.com/Navigator?Europa-List============

[b]

- The Matronics Europa-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?Europa-List

_________________
Richard Wheelwright
G-IRPW
First Flight 24th July 2013

Display posts from previous:

	Matronics Email Lists Forum Index -> Europa-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum