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indigoonlatigo(at)msn.com
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 Posted: Fri Dec 28, 2007 8:06 pm Post subject: Oil Canning and Santa's gift |
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Hey all.
I went ahead and pulled the bottom outboard skin off my first wing with the oil canning in three of the bays. It takes about 4.5 hours to remove all the rivets. I went ahead and did this after speaking to Ken at Van's who suggested I don't even entertain the idea of replacing it. Well somethings just will keep bugging me so I had to do it.
In the attachment is the rivetting pattern of the second wing. It should be pretty clear. My result were great. I revetted it by myself, but I have long arms.
I always rivetted each rivet, one at a time in horizontal rows before moving down and doing the next rivet forward.
I really think the key is not only the rivetting pattern but trimming the skin edge, making sure the gun is not pushing the rib flanges in during setting...as this will make the skin be on a smaller arc, taking up less skin, thus and excess when one gets to the intersections of the LE skin and the rear skin.
Hope it helps.
JOhn G. 409.
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indigoonlatigo(at)MSN.COM
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| Posted: Fri Dec 28, 2007 11:38 pm Post subject: Oil Canning and Santa's gift |
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OOps, the second #14 should be a #15, and the #15 should be a #16 and so on. I duplicated the #14 twice.
Sorry,
JOhn G.
[quote] From: indigoonlatigo(at)msn.com
To: rv10-list(at)matronics.com
Subject: RV10-List: Oil Canning and Santa's gift
Date: Fri, 28 Dec 2007 20:01:09 -0800
.ExternalClass .EC_hmmessage P {padding:0px;} .ExternalClass EC_body.hmmessage {font-size:10pt;font-family:Tahoma;} Hey all.
I went ahead and pulled the bottom outboard skin off my first wing with the oil canning in three of the bays. It takes about 4.5 hours to remove all the rivets. I went ahead and did this after speaking to Ken at Van's who suggested I don't even entertain the idea of replacing it. Well somethings just will keep bugging me so I had to do it.
In the attachment is the rivetting pattern of the second wing. It should be pretty clear. My result were great. I revetted it by myself, but I have long arms.
I always rivetted each rivet, one at a time in horizontal rows before moving down and doing the next rivet forward.
I really think the key is not only the rivetting pattern but trimming the skin edge, making sure the gun is not pushing the rib flanges in during setting...as this will make the skin be on a smaller arc, taking up less skin, thus and excess when one gets to the intersections of the LE skin and the rear skin.
Hope it helps.
JOhn G. 409.
[b]
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johngoodman
Joined: 18 Sep 2006
Posts: 530
Location: GA
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| Posted: Thu Feb 21, 2008 5:21 pm Post subject: Re: Oil Canning and Santa's gift |
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John,
I want to thank you for your candid comments on oil canning problems with the last bottom outboard wing skins. I must have looked at your and Van's drawings a hundred times before I began.
In short, my first skin was a success with an inconsequential "swelling" in one of the last panels. Doing the second one, my wife suggested (she's the head riveter) that we do the last part at a diagonal - starting from the rear spar outboard to the forward outboard rivet. It came out fantastic and was much easier to do, since you can bend the skin more without worrying about a crease.
As you said, trimming the leading edge of the skin to fit was important. I found that a flat file took off the most metal with the smoothest edge - before a little scotchbrite, of course.
For those of you getting ready to tackle those skins, I would suggest making absolutely sure the leading edge of the skin has some gap prior to the final match drill. Follow Van's suggestions but modified with John's pdf flow. Finally, consider the "diagonal scheme" for the outboard three ribs - it really worked and I'll be thanking my wife for weeks.
Finally! I'm on to the Fuselage!
John (lowly bucker)
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#40572 Phase One complete in 2011 |
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indigoonlatigo(at)msn.com
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| Posted: Thu Feb 21, 2008 6:32 pm Post subject: Oil Canning and Santa's gift |
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John,
Thanks for the thanks. Glad it worked out for you. It is a nice feeling getting a great result, in other words, putting it to rest. No what else can I redo?
JOhn G. Waiting for my finish kit to arrive
Do Not Archive
| Quote: | Subject: Re: Oil Canning and Santa's gift
From: johngoodman(at)earthlink.net
Date: Thu, 21 Feb 2008 17:21:52 -0800
To: rv10-list(at)matronics.com
--> RV10-List message posted by: "johngoodman" <johngoodman(at)earthlink.net>
John,
I want to thank you for your candid comments on oil canning problems with the last bottom outboard wing skins. I must have looked at your and Van's drawings a hundred times before I began.
In short, my first skin was a success with an inconsequential "swelling" in one of the last panels. Doing the second one, my wife suggested (she's the head riveter) that we do the last part at a diagonal - starting from the rear spar outboard to the forward outboard rivet. It came out fantastic and was much easier to do, since you can bend the skin more without worrying about a crease.
As you said, trimming the leading edge of the skin to fit was important. I found that a flat file took off the most metal with the smoothest edge - before a little scotchbrite, of course.
For those of you getting ready to tackle those skins, I would suggest making absolutely sure the leading edge of the skin has some gap prior to the final match drill. Follow Van's suggestions but modified with John's pdf flow. Finally, consider the "diagonal scheme" for the outboard three ribs - it really worked and I'll be thanking my wife for weeks.
Finally! I'm on to the Fuselage!
John (lowly bucker)
--------
#40572 QB Wings, QB Fuse arrived
N711JG reserved
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=165496#165496
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