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12-12-2012, 11:31 PM
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Join Date: Apr 2007
Location: -
Posts: 501
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Modification to ease aft fuselage riveting
Hi there,
I just sent an email to Vans about this, but thought VAF might have good input as well:
The question is whether it would be okay to remove the metal beneath the purple line on the fuselage frame shown. The line is drawn to provide 2D edge distance.
This would be advantageous because it would allow the J stiffeners to be back riveted to the skins before installing the skins on the frames. I think this would be significantly easier and reduce the amount of time my bucking partner (wife) has to spend in the aft fuselage!
Thanks for the advice,
David |
12-13-2012, 10:46 AM
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Join Date: May 2010
Location: Denver
Posts: 564
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I don't know if it will work on the side skins, but I back riveted the J channels to the top aft skin before riveting that skin to the bulkheads. The J channels are flexible enough that you can still slip them into position. Actually I was able to back rivet the entire tailcone, with the exception of about a dozen rivets in the aft-most section where there was not enough room for the gun.
Jim Berry
RV-10
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12-13-2012, 12:07 PM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,428
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I'd expect that they'd say it was okay if first, there remained sufficient edge distance for that flange rivet, and second, if there was enough material left for whatever fits into the larger hole in the web.
A bushing might need retention from that bit of material, for example.
Dave
RV-3B
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12-13-2012, 04:11 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Quote:
Originally Posted by David Paule
I'd expect that they'd say it was okay if first, there remained sufficient edge distance for that flange rivet, and second, if there was enough material left for whatever fits into the larger hole in the web.
A bushing might need retention from that bit of material, for example.
Dave
RV-3B
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That "large" hole is for the "J" channel that he's wanting to pre-assemble to the skin.
(If I understand the question correctly.)
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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12-13-2012, 09:28 PM
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Join Date: Apr 2007
Location: -
Posts: 501
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Update:
Van's approved this mod with the two letter response "ok". Gotta love Ken Scott.
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12-14-2012, 04:16 AM
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Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,690
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An alternate method is for your wife to run the gun and you get in the tailcone.
__________________
Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.
Yeah. The boss got a Silhouette Cameo 4 Xmas 2019.
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12-14-2012, 11:39 AM
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Join Date: May 2010
Location: Denver
Posts: 564
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Quote:
Originally Posted by rzbill
An alternate method is for your wife to run the gun and you get in the tailcone.
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No need for anyone to get in the tailcone. I backriveted the whole thing on a 3' x 8' table using a couple pieces of carpet and 2 pillows to hold the cone in position. It takes a fair amount of repositioning to keep the skin against the backing plate, but it is very doable.
Jim Berry
RV-10 |
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