Other good reference here - http://www.vansaircraft.com/pdf/revisio ... /05-10.pdf.
Notice the last paragraph concerning the high friction drag torque of the MS211042L3 nuts.
RH
Main spar bolt torque
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A forum for Panther aircraft builders and Enthusiasts. Two simple rules: Play nice and use a real name
A forum for Panther aircraft builders and Enthusiasts. Two simple rules: Play nice and use a real name
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at7000ft
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Re: Main spar bolt torque
Rick Holland
N6819Z
N6819Z
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psalter
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Re: Main spar bolt torque
Rick,
When there are no torques stated, you should always refer to the FAA AC43.13-1B Chapter 7. While the bolts in the wing are mainly in shear, the nuts we used are designed to take tension loads also. This makes a difference in the torque value. With AN365 nuts and MS21042 nuts, you can use the tension list. The smaller MS21083 nuts should only be used with shear torque values
Attached is the page from the AC43.13-1B. This document is one of the best things the FAA ever put out, and is a bible for A&P's everywhere.
Paul Salter
When there are no torques stated, you should always refer to the FAA AC43.13-1B Chapter 7. While the bolts in the wing are mainly in shear, the nuts we used are designed to take tension loads also. This makes a difference in the torque value. With AN365 nuts and MS21042 nuts, you can use the tension list. The smaller MS21083 nuts should only be used with shear torque values
Attached is the page from the AC43.13-1B. This document is one of the best things the FAA ever put out, and is a bible for A&P's everywhere.
Paul Salter
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Paul Salter
Team Panther
Engineer and Builder
Team Panther
Engineer and Builder
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at7000ft
- Posts: 175
- Joined: Sun Apr 13, 2014 4:59 pm
- First Name: RICK
- Last Name: HOLLAND
- City or Town: CASTLE ROCK
- State or Province: Colorado
- Location: Castle Rock, CO
Main spar bolt torque
Are the Jet Nuts used with the AN3 bolts on the main spars to be torqued to any specific values or just tightend 'firmly'?
Thanks
RH
Thanks
RH
Rick Holland
N6819Z
N6819Z