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wing bolt torque

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mlord001(at)new.rr.com
Guest

Posted: Mon May 25, 2009 6:20 pm Post subject: wing bolt torque

Hi Paul

 Thanks for your response.  But I double  checked 

  the AN Bolt Torque chart and I still come up  with 

 60 to 85 Ft. Lbs. for AN 5 Nuts in shear and 100 to  140

 Ft. Lbs In tension. It doesn't make any sense to me  

 either. It seems way to tight.  Where are our  engineers.

 Regards

 Mike Lord

   [quote][b]

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ashleyw(at)gvtc.com
Guest

Posted: Mon May 25, 2009 6:51 pm Post subject: wing bolt torque

Michael,

  

 Check you Zenith construction standards CS  #407.

  

 100-140 for the AN365 nuts and 60-85 for the AN316  nuts for AN5 bolts.

  

 Both are inch-pounds

  

  

 Floyd Wilkes

 601 XL

 [quote]   ---

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tonyplane(at)bellsouth.ne
Guest

Posted: Mon May 25, 2009 7:13 pm Post subject: wing bolt torque

Ref AC43.13-1B "Acceptable Methods, Techniques, and  Practices AIRCRAFT INSPECTION, REPAIR & ALTERATIONS"., 

 PAGE 7-9 

  

 Table 7-1 "Recommended torque values (inch-pounds)"  

  

 FOR 5/16-24 BOLT 

 100-140 WITH TENSION TYPE NUTS

 AND 60-80 WITH SHEAR TYPE NUTS.  

  

 Again, see that the values are in  inch-pounds.

  

  

 Tony Graziano

 XL/Jab 492 hrs

  

  

 [quote]   ---

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