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  #1  
Old 12-25-2013, 04:27 PM
uuacallis uuacallis is offline
 
Join Date: Aug 2013
Location: Cary, NC
Posts: 43
Default Ooops, I put two spars on facing outboard instead of inboard on Pg 09-06

So I was working pretty hard on getting the stabilizer done this week (note, I may still make it)

Anyways, I inadvertantly placed the most inward spars on the forward part of the stabilator to face outword instead of inword like it calls for in the plans.

When I look through it appears the only real impact is that it was harder to get the bolts in for the stops that you put in on 09-07

I have gone so far as to confirm the skin fits it as is and doesn't need to be flipped to make it work.

So my options are

1 - find a really long drill bit so I can get in there and drill out the 3 rivets on each spar and re-do it
2 - leave it alone

thoughts?
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Adam Callis
RV-12
Empennage Kit Started 9/21/2013
#120783 - N423MJ - reserved
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  #2  
Old 12-25-2013, 04:36 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
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Default

Unfortunately if you are building ELSA you don't have any choice. You'll have to make it conform to the plans. If you're building EAB it's your call.

I always found that when I made a mistake it was best to walk away for a day or so and then come back and make it right. There tends to be too much emotion in the moment that I first discover the mistake to make the best decision then.
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  #3  
Old 12-25-2013, 05:03 PM
uuacallis uuacallis is offline
 
Join Date: Aug 2013
Location: Cary, NC
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If I were to call VANS directly and get their tech support to tell me it is ok to leave it like that, then I would be ok under ELSA? Ultimately I will likely drill them out and flip them, as you said, right now I am too angry at myself for missing that key detail...
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RV-12
Empennage Kit Started 9/21/2013
#120783 - N423MJ - reserved
Cary, NC
Dues Paid through Sept 2014

Build Log: http://www.myclubplane.com -or- http://www.mykitlog.com/uuacallis
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  #4  
Old 12-25-2013, 05:16 PM
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Mike S Mike S is offline
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Location: Dayton Airpark, NV A34
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Default

Spars??

Ribs maybe?

Drill out the rivets and correct it now, and you will not worry about it any more.
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Rv-10, N210LM.

Flying as of 12/4/2010

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  #5  
Old 12-25-2013, 05:22 PM
uuacallis uuacallis is offline
 
Join Date: Aug 2013
Location: Cary, NC
Posts: 43
Default Ended up doing the right thing tonight..

After reading the first reply and taking a big deep breath, I remembered these are pop rivets, very easy to replace.

So I went ahead and drilled out the 6 affected rivets, spun the rib/spar over and then re-riveted (after deburring of course)

I had to remind myself that ultimately this airplane will be a gift to my son on his 16th birthday (just over 7 years from now) and I want to make sure that it is perfect and I will take no short cuts..


thanks all for the help!
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Adam Callis
RV-12
Empennage Kit Started 9/21/2013
#120783 - N423MJ - reserved
Cary, NC
Dues Paid through Sept 2014

Build Log: http://www.myclubplane.com -or- http://www.mykitlog.com/uuacallis
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  #6  
Old 12-25-2013, 06:21 PM
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Bill_H Bill_H is offline
 
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Location: Marshall TX (KASL)
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A 12 inch #30 drill bit is on the required list for building the RV12, you WILL need it!
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  #7  
Old 12-26-2013, 08:39 PM
Captain Cowboy Captain Cowboy is offline
 
Join Date: Sep 2009
Location: State College, Penna
Posts: 46
Red face ooops, worry!

Good call Adam, bet you won't do that again! The last thing you want to worry about is the tail not built to specs when you forgot to drain the swamp!!!
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  #8  
Old 12-26-2013, 11:38 PM
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mvidalr mvidalr is offline
 
Join Date: Aug 2011
Location: Monterrey, Mexico
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Default

Quote:
Originally Posted by uuacallis View Post
...
I had to remind myself that ultimately this airplane will be a gift to my son on his 16th birthday (just over 7 years from now) and I want to make sure that it is perfect and I will take no short cuts..
Please don't let your son read this post in the future

Honest mistake, happy building!
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  #9  
Old 12-27-2013, 07:39 AM
BillL BillL is offline
 
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Location: Central IL
Posts: 5,516
Default beware of the domino effect . . .

Quote:
Originally Posted by Mike S View Post
Spars??

Ribs maybe?

Drill out the rivets and correct it now, and you will not worry about it any more.
+1 - - LSA or not,

One huge lesson I have learned is that changes almost always result in extra work later. Don't become a designer by accident. Mistakes like this fall in that category. The Domino effect.

Don't worry, don't fret, don't delay, just fix it and move on.

Happy Building!
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RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”

Last edited by BillL : 12-27-2013 at 07:40 AM. Reason: spellin
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  #10  
Old 12-31-2013, 06:41 AM
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DonFromTX DonFromTX is offline
 
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Location: La Feria Texas
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Default

I did that same mistake long ago. At that time it was decided that the mistake was minor, had no effect on the stab, and should be left alone. I think it will make putting in the bolts harder is all. To change it after completion of the stab would be a major job.
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