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Bolt torque

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mlord001(at)new.rr.com
Guest

Posted: Wed May 27, 2009 4:41 am Post subject: Bolt torque

Thanks Guys for the heads up on the AN bolt torque.  

 I will pull all of my wing bolts and replace them  with new.

  

 To explain where I got the bogus  information.  I googled

 AN Bolt torque and a ultralightflyers.org/documents  came up

 I clicked on it and AN Bolt torque spec.xls  document came up

 with the faulty information. 

  

 Regards

 Mike Lord

   [quote][b]

purplemoon99(at)bellsouth
Guest

Posted: Wed May 27, 2009 1:43 pm Post subject: Bolt torque

Juan Vega Jr

Joined: 13 Jan 2009
Posts: 157

Posted: Fri May 29, 2009 5:22 am Post subject: Bolt torque

I just checked it out.  Its a good table to use.  the info is correct,  you just need to read the top of the column where it says foot lbs or inch lbs.  I am saving it to use later.  it is attached below for all.



Juan 



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an_torque_specs.pdf

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Download

Filename:

an_torque_specs.pdf

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Juan Vega Jr

Joined: 13 Jan 2009
Posts: 157

Posted: Fri May 29, 2009 5:22 am Post subject: Bolt torque

Michael,

now I see, i think the numbers have an extra zero.  trash that file!

JUan



--

JohnDRead(at)aol.com
Guest

Posted: Fri May 29, 2009 5:38 am Post subject: Bolt torque

Juan;

         Your numbers are off the  wall wrong! Please look in the Zenith Construction Standards for the correct  numbers.

  

 John  Read

CH701 - Elbert CO - Jabiru 3300



Phone: 303-648-3261

Fax:  303-648-3262

Cell: 719-494-4567   

  



 Discover the vari1222831871x1201491818/aol?redir=http:%2F%2Fad.doubleclick.net%2Fclk%3B215225813%3B37274670%3Be%3Fhttp:%2F%2Frecipes.bisquick.bettycrocker.com%3FESRC%3D971>Get Recipes & Savings Now.

  [quote][b]

pdn8r(at)yahoo.com
Guest

Posted: Fri May 29, 2009 5:50 am Post subject: Bolt torque

Torgue values from 43.13 attached.



Bill Pagan EAA Tech Counselor #4395

601XL QBK/Corvair/N565BW (RES)

--- On Fri, 5/29/09, Juan Vega <amyvega2005(at)earthlink.net> wrote:

 [quote]

From: Juan Vega <amyvega2005(at)earthlink.net>

Subject: Re: Bolt torque

To: zenith-list(at)matronics.com, zenith-list(at)matronics.com

Date: Friday, May 29, 2009, 9:22 AM



 --> Zenith-List message posted by: Juan Vega <amyvega2005(at)earthlink.net (amyvega2005(at)earthlink.net)>



Michael,

now I see, i think the numbers have an extra zero.  trash that file!

JUan



--

Torque_Values.pdf

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Filename:

Torque_Values.pdf

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1.04 MB

Downloaded:

188 Time(s)

pete(at)usjabiru.com
Guest

Posted: Fri May 29, 2009 6:10 am Post subject: Bolt torque

That chart is not correct.  Please look at the torque values in  FAA Advisory Circular 43-13 - chapter 7 paragraph 7-40 and the table following.  http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/99c827db9baac81b86256b4500596c4e/$FILE/Chapter%2007.pdf 



You will see that limit torque for AN3 is 40 inch lbs.



Most aircraft designers will specify torque in accordance with this AC.



Pete



--

pete(at)usjabiru.com
Guest

Posted: Fri May 29, 2009 6:14 am Post subject: Bolt torque

Here is the FAA torque chart from AC43-13.  Note that values are in inch lbs



Pete



--

Torque_Chart_AC43-13.pdf

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Torque_Chart_AC43-13.pdf

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JohnDRead(at)aol.com
Guest

Posted: Fri May 29, 2009 6:25 am Post subject: Bolt torque

Here's a question for all. Is this lack of understanding of torque values  behind the alleged wing failure problems?

  

 John  Read

CH701 - Elbert CO - Jabiru 3300



Phone: 303-648-3261

Fax:  303-648-3262

Cell: 719-494-4567   

  In a message dated 5/29/2009 8:15:30 A.M. Mountain Daylight Time,  pete(at)usjabiru.com writes:

 [quote]Here is    the FAA torque chart from AC43-13.  Note that values are in inch    lbs



Pete



--

bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Fri May 29, 2009 6:56 am Post subject: Bolt torque

I don't recall seeing bolt failure mentioned in any of the accident  

reports.



On May 29, 2009, at 10:24 AM, JohnDRead(at)aol.com wrote:



 	  Quote: 	
		   Here's a question for all. Is this lack of understanding of torque  

 values behind the alleged wing failure problems?



 John Read

 CH701 - Elbert CO - Jabiru 3300


	


-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.

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