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Elevator rear spar

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Bill Cannon

Joined: 03 Jun 2008
Posts: 11
Location: New Jersey

Posted: Fri Aug 01, 2008 5:52 am Post subject: Elevator rear spar

Hi folks,



First post on here.  I had a sleepless night last night because I just can't figure out what I did wrong.



I am at the point of riveting the rear spar and found that after riveting the ribs to the rear spar, the flange holes and the skin holes don't line up anymore.  I don't know if the riveting of the ribs to the spar caused the 90 degree angle between the rib and spar to open up a little.  That is all I can figure.  The rivets connecting the ribs to the spar came out real nice.  I can get all the clecos in but since the hole is a little larger than the cleco the skin is still not lined up just right.  There is enough of a misalignment that if I try to rivet it I get a bad squeeze.  Some bend over and must be replaced and the ones that don't bend seem to be off center of the hole but with a descent shop head.



If I put a punch in it and try to pry it simultaneously to squeezing the adjacent hole I feel I will damage the holes as I go.  Am I wrong?  Can this be done?  Is there any sort of tool stronger than a cleco that can hold it straight?  I am drawing a blank and don't want to screw it up to the point of having to start the elevator over.



Thanks for any ideas.  I actually had an hour in the middle of the night where I was going to bag the whole project.  Boy I get worked up when I don't know what went wrong or how to fix it.



Thanks again in advance,



Bill Cannon

RV10 Elevator

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drfred(at)suddenlinkmail.
Guest

Posted: Fri Aug 01, 2008 7:57 am Post subject: Elevator rear spar

Bill;



First of all don't give up.   I hear the grin at the end is worth every 

sleepless night. 

Second.  One of the basic rules of assembly is that if it is too hard to 

put the clecoes in, something is reversed or in the wrong position.   

Are the flanges upside down?  Have you matched drilled everything?  I 

found a number 40 reamer from Avery helped the ease of alignment.  It 

makes for a rounder hole than a regular drill bit.



I do remember having some difficulty at the "nose" or leading edge.   I 

hadn't rounded off the tabs as well as I could have. 



Again, if you are having that kind of trouble, something is reversed.  

Re- look at the parts and the part order.



Fred Williams

40515

903 491 5207 cell. 

Bill Cannon wrote:

 	  Quote: 	
		   



 Hi folks,



 First post on here.  I had a sleepless night last night because I just can't figure out what I did wrong.



 I am at the point of riveting the rear spar and found that after riveting the ribs to the rear spar, the flange holes and the skin holes don't line up anymore.  I don't know if the riveting of the ribs to the spar caused the 90 degree angle between the rib and spar to open up a little.  That is all I can figure.  The rivets connecting the ribs to the spar came out real nice.  I can get all the clecos in but since the hole is a little larger than the cleco the skin is still not lined up just right.  There is enough of a misalignment that if I try to rivet it I get a bad squeeze.  Some bend over and must be replaced and the ones that don't bend seem to be off center of the hole but with a descent shop head.



 If I put a punch in it and try to pry it simultaneously to squeezing the adjacent hole I feel I will damage the holes as I go.  Am I wrong?  Can this be done?  Is there any sort of tool stronger than a cleco that can hold it straight?  I am drawing a blank and don't want to screw it up to the point of having to start the elevator over.



 Thanks for any ideas.  I actually had an hour in the middle of the night where I was going to bag the whole project.  Boy I get worked up when I don't know what went wrong or how to fix it.



 Thanks again in advance,



 Bill Cannon

 RV10 Elevator





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=195991#195991

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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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pascal(at)rv10builder.net
Guest

Posted: Fri Aug 01, 2008 8:52 am Post subject: Elevator rear spar

Bill;

I don't recall there being a alignment issue when I did the elevators. I do 

recall however that there were times throughout the build that I put the 

left side on the right side or I had the piece in upside down initially and 

that resulting in misalignment. The good news is that the holes are very 

precise in the kits so if it doesn't fit initially than something is 

backwards. If you already match drilled everything than for sure it should 

be right and the pieces should line right up. I don't know specifically 

where you are doing this under Section 9 but a good reference is John 

Jensen's site 

http://www.soundingsresearch.com/RV-10/Empennage/Elevators/Elevators.htm 

and Mike rowe's http://www.etigerrr.com/RV10HomePage.htm#Elevators  for what 

they did at this point. use these sites for the rest of the Empennage as 

reference as well for "gotchas".

Don't force it with anything to make it right, it wont be in the end, the 

empennage kit is much easier than the following kits when it comes to steps 

so assure you review the plans again to make sure your not missing a piece 

or other. Also don't be afraid to call Van's for support, there are horror 

stories that there are those who make one seem doubt when you call them but 

my experience has always been one of helpfulness and guidance even if there 

is that occasional attitude sometimes and you may find they know what your 

are dealing with.

As far as losing hope and giving up, we all go through that. I recall losing 

some important time of my life pondering steps I completely messed up.. In 

time I realized that it really wasn't as big a deal as I initially thought. 

I got advice and fixed it. It will always be a challenge in the steps you 

take to make this RV-10 but at the end of each section I always remind 

myself that it actually turned out nicely.

You may find that your misalignment can be easily rectified when you know 

why it's like this. Try Van's if you don't get the response your looking 

for.

Lastly, if something isn't going well, walk away and come back to it later.

Pascal

--------------------------------------------------

From: "Bill Cannon" <bc777(at)optonline.net>

Sent: Friday, August 01, 2008 6:52 AM

To: <rv10-list(at)matronics.com>

Subject: Elevator rear spar



 	  Quote: 	
		   



 Hi folks,



 First post on here.  I had a sleepless night last night because I just 

 can't figure out what I did wrong.



 I am at the point of riveting the rear spar and found that after riveting 

 the ribs to the rear spar, the flange holes and the skin holes don't line 

 up anymore.  I don't know if the riveting of the ribs to the spar caused 

 the 90 degree angle between the rib and spar to open up a little.  That is 

 all I can figure.  The rivets connecting the ribs to the spar came out 

 real nice.  I can get all the clecos in but since the hole is a little 

 larger than the cleco the skin is still not lined up just right.  There is 

 enough of a misalignment that if I try to rivet it I get a bad squeeze. 

 Some bend over and must be replaced and the ones that don't bend seem to 

 be off center of the hole but with a descent shop head.



 If I put a punch in it and try to pry it simultaneously to squeezing the 

 adjacent hole I feel I will damage the holes as I go.  Am I wrong?  Can 

 this be done?  Is there any sort of tool stronger than a cleco that can 

 hold it straight?  I am drawing a blank and don't want to screw it up to 

 the point of having to start the elevator over.



 Thanks for any ideas.  I actually had an hour in the middle of the night 

 where I was going to bag the whole project.  Boy I get worked up when I 

 don't know what went wrong or how to fix it.



 Thanks again in advance,



 Bill Cannon

 RV10 Elevator





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=195991#195991

- The Matronics RV10-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:

http://www.matronics.com/Navigator?RV10-List

Bill Cannon

Joined: 03 Jun 2008
Posts: 11
Location: New Jersey

Posted: Fri Aug 01, 2008 6:17 pm Post subject: Re: Elevator rear spar

Thanks a bunch guys.  I feel a little better today from reading these as well as a visit from a friend with an 8.  We looked it over and he had some ideas.  He is going to come over next week and we'll get it done right.  I rechecked the parts and position and it is correct.  What I didn't do I think is put enough clecos in the spar/skin when riveting the ribs to the spar.  My friend thinks this allowed some movement in one/some of the rib angles that attach to the spar.  We will carefully fix it.  From now on a cleco goes in every hole available.  I should have done that to begin with.  I hope that was it.  Always a dumb mistake.  Have to mitigate those.



Thanks again,



Bill

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