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03-07-2016, 05:16 PM
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Join Date: Jan 2013
Location: Kinnelon NJ
Posts: 164
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Tough set of rivets on tail cone under J stiffeners
Hello, I am riveting the tail cone skins to the bulkeads and came upon a few rivets that I cannot figure out how to set. These are several rivets that join the bulkhead to the skins but fall under a J-stiffener. How do you get to these? Blinf rivet?
In this picture, it is very hard to truly see the rivet is completely under the J-Stiffener. Others were close and I able to use the edge of my back rivet set.
http://elstien.us/RV-10%20Build%20Lo...e/DSC05133.JPG
On another note, I clekoed the skins from the inside and back riveted almost 100% of the rivets except the very back of the tail-cone. It came out very nice.
Any help or advice would be appreciated.
__________________
Michael
Builders Blog http://elstien.us/wordpress/
RV-10 Builder
Tail Kit delivered 6-2013
Finished QB wings on September 2018
Moved to Port Orange Florida November 2018
Tailcone mounted to Fuselage on 3-1-2020
Finished Fuselage April / May 2020
Working working working on Doors
Engine Ordered (BPA/Fly-EFII 8/1/2020
Dues Paid through 2020
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03-07-2016, 05:21 PM
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Join Date: Apr 2014
Location: Underwood, WA
Posts: 413
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I have a bucking bar that has a little foot that sticks nicely under the J-Channel. Something like the top bar in this pic should work although my bucking bar is a lot shorter.
http://www.aircraftspruce.com/pages/...s/buckbara.php
__________________
Eric Rushing
RV-10
90% done, 90% to go.
Looks like an airplane!
Molalla, OR
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03-07-2016, 05:39 PM
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Join Date: Jan 2013
Location: Kinnelon NJ
Posts: 164
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Bucking bar use
Thank you Eric. I have a few of those bucking bars. Never used them. I am so used to my tungsten bar. I guess I could break them out. I wont be able to back rivet them though.
Let me try that tonight after my meeting. Hopefully I wont forget to lay down a blanket on the bottom skin to prevent dropped bucking bars from making dents.
I cannot believe how light the tail-cone is getting once all assembled and the clecos are removed.
Thank You
__________________
Michael
Builders Blog http://elstien.us/wordpress/
RV-10 Builder
Tail Kit delivered 6-2013
Finished QB wings on September 2018
Moved to Port Orange Florida November 2018
Tailcone mounted to Fuselage on 3-1-2020
Finished Fuselage April / May 2020
Working working working on Doors
Engine Ordered (BPA/Fly-EFII 8/1/2020
Dues Paid through 2020
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03-07-2016, 05:47 PM
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Join Date: Apr 2014
Location: Underwood, WA
Posts: 413
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I backriveted most of it as well. Amazing how well the rivets set. I reaaaallly wish I would have figured the back-rivet method out before I assembled my rudder. That piece would have been done in a heartbeat with a better outcome and no ruined skin. (I ended up replacing one of the skins when I backriveted off the edge of the bar after reading countless warning about not doing exactly that!)
__________________
Eric Rushing
RV-10
90% done, 90% to go.
Looks like an airplane!
Molalla, OR
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03-07-2016, 06:19 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by ERushing
I backriveted most of it as well. Amazing how well the rivets set. I reaaaallly wish I would have figured the back-rivet method out before I assembled my rudder. That piece would have been done in a heartbeat with a better outcome and no ruined skin. (I ended up replacing one of the skins when I backriveted off the edge of the bar after reading countless warning about not doing exactly that!)
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I did the same thing - I suggest a little, but powerful, magnet to locate and sit at the end of the plate. Like a neodymium disc magnet. I got several from Amazon and used some for aluminum vice jaw covers.
__________________
Bill
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.”
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03-07-2016, 06:27 PM
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Join Date: Apr 2014
Location: Underwood, WA
Posts: 413
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Michael,
Just realized that we might be talking about different back-riveting methods. I was referring C-Frame backriveting:
http://www.eaavideo.org/video.aspx?v=1803209366
__________________
Eric Rushing
RV-10
90% done, 90% to go.
Looks like an airplane!
Molalla, OR
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03-08-2016, 12:40 PM
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Join Date: Jun 2015
Location: Wichita, KS
Posts: 6
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I am going to have to get that C-frame adapter.
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03-08-2016, 02:50 PM
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Join Date: Jan 2013
Location: Kinnelon NJ
Posts: 164
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Thanks - those rivets are done and I am moving on
Thanks everyone for the feedback. I used the bucking bar suggested, with some electrical tape wrapped around it to protect near-by primed surfaces. It worked well.
I have a whole set of various bucking bars but nothing compares to the tungsten. I forgot I even had them.
__________________
Michael
Builders Blog http://elstien.us/wordpress/
RV-10 Builder
Tail Kit delivered 6-2013
Finished QB wings on September 2018
Moved to Port Orange Florida November 2018
Tailcone mounted to Fuselage on 3-1-2020
Finished Fuselage April / May 2020
Working working working on Doors
Engine Ordered (BPA/Fly-EFII 8/1/2020
Dues Paid through 2020
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03-08-2016, 03:08 PM
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Join Date: Apr 2014
Location: Underwood, WA
Posts: 413
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Let me know how Page 10-21 Step 3 goes for you. I had a heck of a time with the rivets closest to the skin between the Bellcrank ribs and the F-1007 frame. Even with an offset rivet set, I could get a clean set. I finally ended up using pulled rivets. Unfortunately, I buggered the holes up a bit and had to fabricate a doubler, an approach OK'd by Vans.
If there's no clear way to get those rivets done, just use pulled rivets rather than causing yourself frustration...
__________________
Eric Rushing
RV-10
90% done, 90% to go.
Looks like an airplane!
Molalla, OR
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03-08-2016, 03:20 PM
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Join Date: Jan 2013
Location: Kinnelon NJ
Posts: 164
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Bellcrank ribs to skin riveting
I still need to rivet the bottom skins in place but most of that should be easy. I will need to phone a friend for the few rivets on the bottom curved piece, then it is on to section 10-21
I was looking at that section a few days ago and was wondering why not attached the bellcrank ribs, 10-21 step 3 before attaching the angle to the top of them (section 10-21 step 2)? Then I would not need an offset set. I could simply back rivet them on place.
Thoughts?
__________________
Michael
Builders Blog http://elstien.us/wordpress/
RV-10 Builder
Tail Kit delivered 6-2013
Finished QB wings on September 2018
Moved to Port Orange Florida November 2018
Tailcone mounted to Fuselage on 3-1-2020
Finished Fuselage April / May 2020
Working working working on Doors
Engine Ordered (BPA/Fly-EFII 8/1/2020
Dues Paid through 2020
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