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  #1  
Old 07-29-2015, 03:31 AM
Wolfgang M. Wolfgang M. is offline
 
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Default RV-12 Tailcone J-Stiffeners

I started to assemble the tailcone. Page 10-06 Step 4.
Unfortunately the J-Stiffeners F-1283A & B do not fit at all. It is almost one hole diameter off.
Does anybody have an idea what could be wrong?
Wolfgang
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  #2  
Old 07-29-2015, 05:16 AM
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magiccarpet magiccarpet is offline
 
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Could you post an image of that part please?
I remember that every time something hasn't fit or seemed ackward, it was always me who overlooked or misaligned a part.
I would be suprised if in your case the J-stiffeners of the skins don't fit in.
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Old 07-29-2015, 05:36 AM
BigJohn BigJohn is offline
 
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Go back and retrace all steps leading up to that step. It's conceivable a part could be wrong, but highly unlikely.
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  #4  
Old 07-29-2015, 07:09 AM
Wolfgang M. Wolfgang M. is offline
 
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Default Image of J-Stiffener

Thank you for your reply.
I tried to send some Images, not sure how it works!


Wolfgang
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  #5  
Old 07-29-2015, 07:53 AM
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magiccarpet magiccarpet is offline
 
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Default Alignment

I am not in my shop right now so I can't answer 100%,
but to me it looks that the F-1283A stiffener should be placed outside of the J-channel of the skin.
In your picture it is located inside the J-channel.
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Old 07-30-2015, 02:55 AM
Wolfgang M. Wolfgang M. is offline
 
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The F-1283A stiffener has to be placed inside of the J-channel of the Skin.

In the meantime I received some information from Vans. They are back from Oshkosh now.
This Problem is caused by a mis bent part and happened a few times recently.
It will be a quick and easy Job to fix.
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  #7  
Old 07-30-2015, 06:36 AM
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joedallas joedallas is offline
 
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Default Page 10.06.04

Page 10.06.04



See more http://joesrv12.com/Builder%20Log/bl_10_06.htm

Joe Dallas
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Last edited by joedallas : 07-30-2015 at 06:40 AM.
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  #8  
Old 08-03-2015, 08:37 AM
waterboy2110 waterboy2110 is offline
 
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I recall marking several sections that did not appear to line up and I was concerned. Once everything was cleco'd up it all lined up.

I do have some ripples over the stiffeners - common as I understand it. Vans said build it and fly it... so I will.
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  #9  
Old 04-02-2019, 07:43 PM
scorkey scorkey is offline
 
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Location: Bonaire, GA
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Quote:
Originally Posted by Wolfgang M. View Post
The F-1283A stiffener has to be placed inside of the J-channel of the Skin.

In the meantime I received some information from Vans. They are back from Oshkosh now.
This Problem is caused by a mis bent part and happened a few times recently.
It will be a quick and easy Job to fix.
Wolfgang, I came across the same problem with the holes not aligning when the stiffeners are placed in the J-channel of the bottom skin. (Empennage kit shipped Jan 2014)

What was the information from Van’s and the fix?
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  #10  
Old 04-04-2019, 12:28 PM
Jyuma Jyuma is offline
 
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Quote:
Originally Posted by scorkey View Post
Wolfgang, I came across the same problem with the holes not aligning when the stiffeners are placed in the J-channel of the bottom skin. (Empennage kit shipped Jan 2014)

What was the information from Van’s and the fix?
Hi Scorkey... you're asking a question in a 4 year old post.
I'm building the tail cone of an RV-12is right now and I have not had any alignment problems with stiffeners.

If you can be more specific... what part is not aligning with what part... I'll try to help you.
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