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  #11  
Old 03-28-2009, 12:37 PM
morsesc morsesc is offline
 
Join Date: Sep 2007
Location: Columbia SC
Posts: 62
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Yes, the oil canning is worse on the right side of my tail cone also. This is great news, that we can correct this problem. Would be easy to access before attachment to the fuselage...

Rick.

Last edited by morsesc : 03-29-2009 at 08:30 AM.
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  #12  
Old 04-03-2009, 10:18 AM
Fl Mac Fl Mac is offline
 
Join Date: Nov 2008
Location: Lakeland Fl
Posts: 156
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Quote:
Originally Posted by sys1jal View Post
I, too, have been having some oil-canning issues on the tailcone. The left is better than the right and the F-1209 frame is better than the F-1208.

After putting a straight edge on the F-1280-R skin, I have a 7/32" depression, at the deepest, just aft of the F-1208-R fuselage frame. It is probably 6" across and 8-9" high. I drilled out the 7 vertical rivets on the F1208-R frame and the depression lessened to 1/8" with the skin floating off the flange.

Van's recommended shims or stiffeners since the void would be too large to fill. When I asked whether the use of shims and a stiffener would impact the E-LSA status, I was told that it would not.

I plan to follow Van's advice, but I am going to wait until I cleco the fuselage onto the tailcone to see what else happens. Maybe I'll get lucky.

Joe

I am experiencing exactly what you describe. I have drilled out those rivets and get about the same void. I will do the shim thing when I get the fuse done.

Thanks to everyone who commented on this issue. I really thought it was only me and it discouraged me after I got the tail kit done.
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  #13  
Old 04-03-2009, 12:01 PM
smokenjoe50 smokenjoe50 is offline
 
Join Date: Jul 2008
Location: corona california
Posts: 74
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Is anyone getting any oil canning in the vertical stabilizer? My skin seems to be popping in and out above and below one of the ribs.
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  #14  
Old 04-03-2009, 11:56 PM
rv72004 rv72004 is offline
 
Join Date: Nov 2005
Posts: 452
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There is a lot of oil canning on the 7 when in flight. I saw a post recently with pictures. Search it and maybe you can find some causes/ solution.
The 7 is much more discussed than the 12 at this point. I know they are not the same planes, but both are aluminium and from the same designers.
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  #15  
Old 04-12-2009, 09:35 AM
ARPENN ARPENN is offline
 
Join Date: Feb 2009
Location: West Ossipee, NH
Posts: 141
Default Little ripples in side skin

I also have oil canning in the side skins in the vicinity of frame 1208. How much shimming will be required? I think I will wait until the Tail Cone and Empennage are attached to the Fuselage as this will change the load on Tail Cone for better or worse and perhaps Van's will have a standard fix for this condition.
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  #16  
Old 04-12-2009, 10:06 AM
JBPILOT JBPILOT is offline
 
Join Date: Nov 2007
Location: Jesup, Iowa
Posts: 1,657
Default oil-canning right side

I got tired of looking at it, so I drilled out about 10 rivets. Popped right out. I shimed a bunch and now it is fairly decent. The largest frame seems to be a little narrow at that point, or the skin is too large. I think the frame was too narrow. Glad I did it. One less thing to have people ask about.

John Bender
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  #17  
Old 04-12-2009, 03:28 PM
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Gagarin737 Gagarin737 is offline
 
Join Date: Mar 2009
Location: Netherlands
Posts: 663
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Any change for a picture how you solved it with the shims?
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  #18  
Old 04-12-2009, 04:01 PM
JBPILOT JBPILOT is offline
 
Join Date: Nov 2007
Location: Jesup, Iowa
Posts: 1,657
Default Not right now

I am fiber-glassing the canopy. I used the flanges cut off the wing ribs that I had kept in a nice pile. I just cut the widest surface off and that made about 4" strips. I drilled a 1/8" hole near one end of several, then went inside the rear and clecoed from the inside. I took the cutters in with me, and put enough in places to make it tight, clecoed from inside thru the one hole, then pushed the free end in line with the frame. When it felt tight, I went back outside and looked at it. When I got it where I wanted it, I match drilled from the outside thru the holes that were not drilled and clecoed from the outside. Then went back in and removed the clecoes, and went back out and clecoed from the outside. When it all looked good, I final riverted it. Long story, but it worked. Will try to get a picture in a few days.

John Bender
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  #19  
Old 04-13-2009, 05:44 AM
Fl Mac Fl Mac is offline
 
Join Date: Nov 2008
Location: Lakeland Fl
Posts: 156
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Thanks JB,
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  #20  
Old 04-13-2009, 06:11 PM
morsesc morsesc is offline
 
Join Date: Sep 2007
Location: Columbia SC
Posts: 62
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Yes but... Until Van's posts a "standard fix", how does correcting this issue impact ELSA certification? Would this fall under "workmanship". Any thoughts?

Rick
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