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  #1  
Old 05-25-2016, 08:42 PM
LuisR LuisR is offline
 
Join Date: Apr 2005
Location: St Lucie County, FL
Posts: 353
Default Looking over V Stab

Ok, finally finished Ning the time to look over the rudder from the partial built kit I just picked up.

1. First, I'm just now noticing that the skin rivets may have been set with the blue vinyl then later removed. I say this because I see blue specs stuck under neath a dozen or so under the rivets.

2. There is a very small gap between the left spar cap and the rear spar.

3. Page 6-4 says to leave 3 horizontal places open. Well, they were riveted. These are part of the VS-1004 or bottom rib.


Is 1 and 2 above a "build on" situation or do I need to remedy them? What's the best way to drill out those 3 rivets in 3 above. I'll post pics later.

https://goo.gl/photos/m725AjEQ8keuNapCA
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Luis
---------------------------RV-10---------------------------
Empennage. Complete Minus fiberglass and attach section. FOR SALE
Build Log N925LC (Reserved) YouTube

Last edited by LuisR : 05-26-2016 at 07:28 AM.
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  #2  
Old 05-25-2016, 09:33 PM
LuisR LuisR is offline
 
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Beware... LARGE PICS...

https://goo.gl/photos/m725AjEQ8keuNapCA
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Luis
---------------------------RV-10---------------------------
Empennage. Complete Minus fiberglass and attach section. FOR SALE
Build Log N925LC (Reserved) YouTube
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  #3  
Old 05-26-2016, 02:57 AM
supik supik is offline
 
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Conngrats! -looks like a very good start!!!
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  #4  
Old 05-26-2016, 06:59 AM
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rleffler rleffler is offline
 
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Location: Delaware, OH (KDLZ)
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Quote:
Originally Posted by LuisR View Post
Ok, finally finished Ning the time to look over the rudder from the partial built kit I just picked up.

1. First, I'm just now noticing that the skin rivets may have been set with the blue vinyl then later removed. I say this because I see blue specs stuck under neath a dozen or so under the rivets.
Drill the rivet out and remove the blue plastic. There are several issues. The first is these specs will be magnified and look terrible when you paint. The other issue is that because the plastic is under the rivet, there may be a small gap between the skin and the manufactured head of the rivet. This could lead to corrosion issues down the road.

Quote:
Originally Posted by LuisR View Post
2. There is a very small gap between the left spar cap and the rear spar.
You need to investigate more on why this is occurring. It should look like the right side. I would consult with Vans. If it were mine, I would probably take the left skin off to determine the problem. You may have a problem with the alignment of the ribs that is hidden by the skin.


Quote:
Originally Posted by LuisR View Post
3. Page 6-4 says to leave 3 horizontal places open. Well, they were riveted. These are part of the VS-1004 or bottom rib.
Drill them out. Read ahead in the plans to determine what goes there and if they need to be dimpled. I didn't look at the plans, but I suspect those are for the screws for the fairing that transitions the vertical and horizontal.


Quote:
Originally Posted by LuisR View Post
Is 1 and 2 above a "build on" situation or do I need to remedy them? What's the best way to drill out those 3 rivets in 3 above. I'll post pics later.

I believe there should be instructions in Chapter 5 on how to remove a rivet. If not, get with a local builder or find an EAA Technical Counselor to show you how to drill out a rivet. It's not hard, but you do have to be careful and get the bit perfectly centered. You may also need to replace with an "oops rivet". Both Vans and ACS stock these, because you're not the first person to remove a rivet and enlarge the hole.

good luck!
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  #5  
Old 05-26-2016, 07:20 AM
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Auburntsts Auburntsts is offline
 
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OK I'm confused mainly because I'm at work and can't open the site that has your pics. You say rudder, but your third question is actually referring to the VS. When I look at page 6-4, there are no steps involving the VS-1004 rib. Can you post the actual step numbers?
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  #6  
Old 05-26-2016, 07:26 AM
LuisR LuisR is offline
 
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Yup. V stab. Don't have the plans with me at work. I'll post the actual step tonight.
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---------------------------RV-10---------------------------
Empennage. Complete Minus fiberglass and attach section. FOR SALE
Build Log N925LC (Reserved) YouTube

Last edited by LuisR : 05-26-2016 at 07:48 AM.
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  #7  
Old 05-26-2016, 07:57 AM
LuisR LuisR is offline
 
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Location: St Lucie County, FL
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Quote:
You need to investigate more on why this is occurring. It should look like the right side. I would consult with Vans. If it were mine, I would probably take the left skin off to determine the problem. You may have a problem with the alignment of the ribs that is hidden by the skin.
If I drill out all the rivets on the left side, is it acceptable to use oops rivets on that many place on one skin? It looks to me that the spar cap was not clamped enough to the rear spar while riveting.
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Luis
---------------------------RV-10---------------------------
Empennage. Complete Minus fiberglass and attach section. FOR SALE
Build Log N925LC (Reserved) YouTube
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  #8  
Old 05-26-2016, 08:14 AM
AviatorJ AviatorJ is offline
 
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Quote:
Originally Posted by LuisR View Post
1. First, I'm just now noticing that the skin rivets may have been set with the blue vinyl then later removed. I say this because I see blue specs stuck under neath a dozen or so under the rivets.
Double check that it is indeed the blueing and not just blue painters tape. When driving rivets I switch between clear masking and blue painters tape to protect the surface from the rivet gun. The end result is sometimes there are some pieces of tape hammered on that you have to just scrap off with your finger... Acetone works well too.
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  #9  
Old 05-26-2016, 08:47 AM
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Carl Froehlich Carl Froehlich is offline
 
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Quote:
Originally Posted by LuisR View Post
If I drill out all the rivets on the left side, is it acceptable to use oops rivets on that many place on one skin?
No.

As it appears you will be drilling out a boatload of rivets you have two choices:
- Rebuild using 1/8" flush rivets. One person out of a hundred will ever notice the change - and you can always tell this nosey guy that you did a "speed mod".
- Buy new aluminum and start over. In the grand scheme of things this is dirt cheap compared to years of looking at your VS and not being happy. Hang up the old one on a wall and use it as a training aid to show builders who come after you.

Carl
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  #10  
Old 05-26-2016, 08:56 AM
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Larco Larco is offline
 
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Curious why you don?t recruit an experienced local builder to come over and inspect your parts and get you on the right track?
Sometimes these projects are great deals and done well and then there are some that need a ton of work. An experienced eye can be very helpful. :-)

Larry
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