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Extra hole

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tomcostanza

Joined: 19 Oct 2008
Posts: 49

Posted: Mon Oct 20, 2008 11:37 am Post subject: Extra hole

If some idiot builder (not me of course) drilled a #40 hole in the wrong place in an external skin, and wanted to hide the mistake, what would you suggest?  I was thinking of a filler, but was afraid it might loosen and fall out.

_________________
Clear Skies,
Tom Costanza
-- in year 17 of a 3 year project

jgiallo(at)mindspring.com
Guest

Posted: Mon Oct 20, 2008 11:50 am Post subject: Extra hole

Dimple it and install "rivet to nowhere".



Nobody will ever notice, particularly after you paint it.



Regards,



Joe

N813MJ 48hrs



tomcostanza wrote:



 	  Quote: 	
		  



If some idiot builder (not me of course) drilled a #40 hole in the wrong place in an external skin, and wanted to hide the mistake, what would you suggest?  I was thinking of a filler, but was afraid it might loosen and fall out.



--------

Clear Skies,

Tom Costanza





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p 9521#209521

David Henderson

Joined: 02 Aug 2007
Posts: 6

Posted: Mon Oct 20, 2008 11:56 am Post subject: Extra hole

Use a rivet. Best filler around - for structure as well.



--

_________________
David Henderson
RV-7 Lord Willing
N925LW
Lawrenceville, GA

john_s_bright(at)yahoo.co
Guest

Posted: Mon Oct 20, 2008 12:13 pm Post subject: Extra hole

dimple it and put a flush rivet



do not archive

 

Thanks,



John Bright

From: tomcostanza <Tom(at)CostanzaAndAssociates.com>

To: rv7-list(at)matronics.com

Sent: Monday, October 20, 2008 3:37:41 PM

Subject: Extra hole



  href="mailto:Tom(at)CostanzaAndAssociates.com">Tom(at)CostanzaAndAssociates.com>



If some idiot builder (not me of course) drilled a #40 hole in the wrong place in an external skin, and wanted to hide the mistake, what would you suggest?  I was thinking of a filler, but was afraid it might loosen and fall out.



--------

Clear Skies,

Tom Costanza





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=209521#209521





htthttp://forums.mattronics.com/contribution" target="_blank">http://www.matronics.com/contri================





__________________________________________________

Do [quote][b]

robertrv607(at)yahoo.com
Guest

Posted: Mon Oct 20, 2008 12:16 pm Post subject: Extra hole

Tom: I never did such a thing either..... I used superfill, is a two part mix..

 once drye you sand and that is all.

  

 Another thing I used,, I bought a two part,  I think is Aluminum  repair or Steel?

 bought at Auto discount..

 Mix  according to instructions,, and applied, it drys  very hard...(Aluminum and Steel)

 that does not sound right... it must be alluminum, or metal....read the labels.

  

 It worked great in my case to smooth, depressions...

  

 Another idea..

  

 Bert

  

 rv6a

  

 do not archive



--- On Mon, 10/20/08, tomcostanza <Tom(at)CostanzaAndAssociates.com> wrote:



 [quote]From: tomcostanza <Tom(at)CostanzaAndAssociates.com>

Subject: Extra hole

To: rv7-list(at)matronics.com

Date: Monday, October 20, 2008, 3:37 PM



[quote]--> RV7-List message posted by: "tomcostanza" <Tom(at)CostanzaAndAssociates.com>  If some idiot builder (not me of course) drilled a #40 hole in the wrong place in an external skin, and wanted to hide the mistake, what would you suggest?  I was thinking of a filler, but was afraid it might loosen and fall out.  -------- Clear Skies, Tom Costanza     Read this topic online here:  http://forums.matronics.com/viewtopic.php?p 9521#209521           [quote][b]

sshook(at)cox.net
Guest

Posted: Mon Oct 20, 2008 12:31 pm Post subject: Extra hole

Dimple it, put a nice AN426 rivet in there and make it a "rivet to nowhere".



				

Scott R. Shook

RV-7A (Building)

N696JS (Reserved)

--

tomcostanza

Joined: 19 Oct 2008
Posts: 49

Posted: Mon Oct 20, 2008 1:23 pm Post subject: Re: Extra hole

Thanks all.  Rivet to nowhere won't work...needs to be smooth on the other side.



 	  Quote: 	
		  

Tom: I never did such a thing either..... I used superfill, is a two part mix.. 

once drye you sand and that is all. 	




Bert,

Are you flying with this repair?  I mean, is the person who built the plane flying with it?    And it is holding?

_________________
Clear Skies,
Tom Costanza
-- in year 17 of a 3 year project

franz(at)lastfrontierheli
Guest

Posted: Mon Oct 20, 2008 1:43 pm Post subject: Extra hole

Put in a flush rivet

Franz

On 20/10/08 12:37 PM, "tomcostanza" <Tom(at)CostanzaAndAssociates.com> wrote:



 	  Quote: 	
		   

 

 If some idiot builder (not me of course) drilled a #40 hole in the wrong place

 in an external skin, and wanted to hide the mistake, what would you suggest?

 I was thinking of a filler, but was afraid it might loosen and fall out.

 

 --------

 Clear Skies,

 Tom Costanza

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p 9521#209521

 

 

 

 

 

 

 

 

 

 


	


 Franz Fux

Director of Operations

Last Frontier Heliskiing

TLH  Heliskiing

Box 1118 Vernon, BC, V1T 6N4

www.lastfrontierheli.com

www.tlhheli.com

Ph: 250 558-7980

cell: 250 260-0433

rv7(at)b4.ca
Guest

Posted: Mon Oct 20, 2008 2:36 pm Post subject: Extra hole

On 14:23 2008-10-20 "tomcostanza" <Tom(at)CostanzaAndAssociates.com> wrote:

 	  Quote: 	
		   

 es.com>

 Thanks all.  Rivet to nowhere won't work...needs to be smooth on the

 other side.


	


Well, then, dimple it from the *inside*!  



How flush does it need to be on the inside?  You could countersink the

outside, and the bump inside would be more flush.  Or you could add a

doubler, and countersink both outside *and* inside, and rivet it

double-flush.



Where is it on the airframe that the butt-end of a rivet wouldn't be

acceptable on the inside?  Just curious...



-Rob

tomcostanza

Joined: 19 Oct 2008
Posts: 49

Posted: Tue Oct 21, 2008 4:23 am Post subject: Re: Extra hole

 	  Quote: 	
		  Where is it on the airframe that the butt-end of a rivet wouldn't be 

acceptable on the inside? Just curious... 	
 



Rob,

The xtra hole is in the bottom fuse skin (F-776) where it overlaps the bottom wing skin.  The 2 skins would be held apart by anything thicker than a thousandth or two.



Right now I'm thinking of ever-so-slightly countersinking the inside of F-776 and using filler.  That would make the filler the shape of a cone instead of a cylinder.  The fat part of the cone would be on the inside, so it wouldn't fall out, and it wouldn't fall in because the wing skin would be there.

_________________
Clear Skies,
Tom Costanza
-- in year 17 of a 3 year project

ceengland(at)bellsouth.ne
Guest

Posted: Tue Oct 21, 2008 5:52 am Post subject: Extra hole

sshook(at)cox.net
Guest

Posted: Tue Oct 21, 2008 7:34 am Post subject: Extra hole

If the hole is overlapping the wing skin and is on the bottom of the

airframe, why not just leave it be?  It sounds like if it where it overlaps

the wing skin, then its not coming into the cabin.  Just make sure you debur

it so that you don't run into the cracking in the future.



				

Scott R. Shook

RV-7A (Building)

N696JS (Reserved)



--

john_s_bright(at)yahoo.co
Guest

Posted: Tue Oct 21, 2008 7:48 am Post subject: Extra hole

Gee, one has to lay on the ground to see it. My advice; leave it alone and it will leave you alone.

 

Thanks, 

  

 do not archive

  

 John Bright

 

   From: tomcostanza <Tom(at)CostanzaAndAssociates.com>

To: rv7-list(at)matronics.com

Sent: Tuesday, October 21, 2008 8:23:56 AM

Subject: Re: Extra hole



--> RV7-List message posted by: "tomcostanza" <Tom(at)CostanzaAndAssociates.com (Tom(at)CostanzaAndAssociates.com)>

 	  Quote: 	
		   Where is it on the airframe that the butt-end of a rivet wouldn't be 

 acceptable on the inside? Just curious...


	




Rob,

The xtra hole is in the bottom fuse skin (F-776) where it overlaps the bottom wing skin.  The 2 skins would be held apart by anything thicker than a thousandth or two.



Right now I'm thinking of ever-so-slightly countersinking the inside of F-776 and         [quote][b]

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