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  #21  
Old 02-24-2018, 12:52 PM
Jim T Jim T is offline
 
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Location: Independence, OR
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Originally Posted by Jshepherd View Post
What rivets did you use in the holes I circled in your inboard Hinge bracket assembly My eyes are not good enough to see in your picture. Figure 6 reads AN470AD3-3.5 4 places for inboard hinge and 2 places outboard hinge. Then install AN426AD3-4 in 2 places for the K1000-4 nut plate. Seems to me the two inboard holes on the inboard hinge bracket should get 426 rivets flush inside edge of the hinge, and not the 470 since they will be so close to the bearing when stab reinstalled. Just a thought I was going to ask Vans on Monday but thought I would run it by you since you have already done SB.

Thanks


Jeff, I'm doing this SB and am at the point of riveting these brackets together. Here's my take:
1). The holes you've circled in the picture don't look like they have rivets in them.
2). I made my Inboard Bracket using four AN470AD3-3.5 rivets as called out and the inner rivets clear the bearing no problem.
3). It seems like AN470 rivets would also work for attaching the nut plate to the outer bracket but will countersink and use the AN426AD3-4 rivets as called out, just to be safe.

Jim
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  #22  
Old 02-24-2018, 02:31 PM
Jshepherd Jshepherd is offline
 
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Location: HIGHLAND, IL
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Quote:
Originally Posted by Jim T View Post
Jeff, I'm doing this SB and am at the point of riveting these brackets together. Here's my take:
1). The holes you've circled in the picture don't look like they have rivets in them.
2). I made my Inboard Bracket using four AN470AD3-3.5 rivets as called out and the inner rivets clear the bearing no problem.
3). It seems like AN470 rivets would also work for attaching the nut plate to the outer bracket but will countersink and use the AN426AD3-4 rivets as called out, just to be safe.

Jim
I looked at it again and your correct the 470ís clear the bearing just fine. I put mine together per plans with the four 470 rivets.

Thanks for reply
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  #23  
Old 02-24-2018, 05:42 PM
Tacco Tacco is offline
 
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Location: White Salmon, WA
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Good call guys. Thank you. There should be four 470s on that hinge. I fixed mine today. Thanks!!
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  #24  
Old 02-24-2018, 06:28 PM
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joedallas joedallas is online now
 
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Location: Spring Hill Fl
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Default Hard Side

I installed the two front ribs the same way for a reason.
I wanted the hard side of the rib closer to the cantilever skin.

Was there a reason you did the same thing

Joe Dallas

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Originally Posted by Jshepherd View Post

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Last edited by joedallas : 02-24-2018 at 07:59 PM. Reason: front not back
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  #25  
Old 02-24-2018, 06:56 PM
Jshepherd Jshepherd is offline
 
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Originally Posted by joedallas View Post
I installed the two back ribs the same way for a reason.
I wanted the hard side of the rib closer to the cantilever skin.

Was there a reason you did the same thing

Joe Dallas
That is not a picture of my stab it’s Tacco’s I copied it from the picture he posted earlier in the thread. I see what your asking about the two inboard forward ribs being reversed. I put mine in per plans the other way so Tacco would be the one to ask about the ribs.

This is mine

Last edited by Jshepherd : 02-24-2018 at 07:04 PM.
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  #26  
Old 02-24-2018, 07:16 PM
Jim T Jim T is offline
 
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Joe...........are you maybe referring to the front ribs? I did mine like Jeff, as the plans called for. It's interesting that the plans also call for the back ribs being the other way .....with the hard side out.

Jim
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  #27  
Old 02-24-2018, 08:02 PM
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joedallas joedallas is online now
 
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Yes the front ribs
My bad
A long day

Joe Dallas

Quote:
Originally Posted by Jim T View Post
Joe...........are you maybe referring to the front ribs? I did mine like Jeff, as the plans called for. It's interesting that the plans also call for the back ribs being the other way .....with the hard side out.

Jim
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  #28  
Old 02-24-2018, 09:00 PM
Jim T Jim T is offline
 
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Yes the front ribs
My bad
A long day

Joe Dallas
Long here as well. These days it takes twice as long to get half as much done!

Anyway...........I'm certainly no aeronautical engineer, but I'm assuming that the front rib is oriented the way it is, is to gradually decrease to load on the skin. The question in my mind is why the same thing wasn't done for the aft rib.

Dang ............I wish I'd studied mechanical engineering in college instead of electronics engineering!

Jim
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  #29  
Old 02-24-2018, 09:05 PM
rv9builder rv9builder is offline
 
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I built mine per the plans. I also thought it seemed a little unusual to have the flanges facing different directions, but I figured the designer had a good reason for doing it that way. Anybody know the reason?
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  #30  
Old 02-25-2018, 12:50 AM
Tacco Tacco is offline
 
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Forward ribs....You boys have me worried now....lets ask Vans.
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