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XL WING BOLTS??

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chris Sinfield

Joined: 28 Nov 2006
Posts: 270
Location: Sydney Australia

Posted: Tue Feb 19, 2008 3:23 am Post subject: XL WING BOLTS??

I am looking at the main wing bolts on 6-W-4 and it states that the main wing is held on by 12X AN5-15A bolts but then 



on page 6-S-3 it states Wing attachment bolts are 4 X AN5-16A and 8X AN5-15A. 



I guess I should put the right bolts in. What have others used? I have the latest set of plans.



Chris.

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larry(at)macsmachine.com
Guest

Posted: Tue Feb 19, 2008 6:37 am Post subject: XL WING BOLTS??

Chris,

The AN5-16A (1/8th longer) bolts are probably to accommodate a thicker 

section, or compensate for the inability to get washers, nuts on and 

have the minimum

three threads exposed above the nut. It's possible the shorter ones work 

as well, but you'll need to look at it first.



Larry McFarland 601HDS at www.macsmachine.com

do not archive



chris Sinfield wrote:

 	  Quote: 	
		   



 I am looking at the main wing bolts on 6-W-4 and it states that the main wing is held on by 12X AN5-15A bolts but then 



 on page 6-S-3 it states Wing attachment bolts are 4 X AN5-16A and 8X AN5-15A. 



 I guess I should put the right bolts in. What have others used? I have the latest set of plans.



 Chris.

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craig(at)craigandjean.com
Guest

Posted: Tue Feb 19, 2008 8:06 am Post subject: XL WING BOLTS??

The outer four bolts must be longer because they also pass through the four

upright angle brackets (6B13-1).



-- Craig



--

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bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Tue Feb 19, 2008 9:12 am Post subject: XL WING BOLTS??

As I recall, the outermost four bolts pass through more layers of  

metal than the other eight. That accounts for the longer length. My  

plans called for all the same length, and that's what I used. I think  

I just used an extra washer where needed to get the correct thread  

engagement of the nuts. I think I have a washer under the bolt head on  

most of my bolts but not on the outer four. I don't recall what length  

my bolts are though.



 	  Quote: 	
		  

 

 >



 I am looking at the main wing bolts on 6-W-4 and it states that the  

 main wing is held on by 12X AN5-15A bolts but then



 on page 6-S-3 it states Wing attachment bolts are 4 X AN5-16A and 8X  

 AN5-15A.



 I guess I should put the right bolts in. What have others used? I  

 have the latest set of plans.



 Chris.


	


-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

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

jmcburney(at)pobox.com
Guest

Posted: Wed Feb 20, 2008 7:06 am Post subject: XL WING BOLTS??

Hi, Bryan,



Rather than leaving out the washer under the bolt-head, a better way to get

proper thread exposure is to use thin washers, i.e., AN-960-516L.  The

washer under the bolt-head serves as a bearing during tightening as well as

a spacer.



Blue skies and tailwinds



Jim

CH-801

DeltaHawk diesel

Augusta GA

90% done, 90% left

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bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Wed Feb 20, 2008 7:44 am Post subject: XL WING BOLTS??

As long as the bolt isn't turned while tightening the nut, a washer  

isn't really needed under the bolt head, just under the nut. You need  

a washer under a bolt head when tightening a bolt into a threaded hole.



It is a bit simpler to use the same size bolt for all twelve locations  

though, especially when you're practically standing on your head in  

the cabin and working by feel. I put the bolts in from the back of the  

spar with the nuts exposed on the front side for ease of inspection. I  

had to drill a couple of access holes through the seat pan to allow  

the bolts to be inserted that way.



 	  Quote: 	
		  

 

 <jmcburney(at)pobox.com>



 Hi, Bryan,



 Rather than leaving out the washer under the bolt-head, a better way  

 to get

 proper thread exposure is to use thin washers, i.e., AN-960-516L.  The

 washer under the bolt-head serves as a bearing during tightening as  

 well as

 a spacer.



 Blue skies and tailwinds




	




-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

do not archive.

- The Matronics Zenith-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:

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

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