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12-11-2014, 05:55 PM
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Join Date: Dec 2009
Location: Montreal
Posts: 1,456
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If you could accurately bore the hole bigger and put a bushing in while maintaining the recommended edge distance it might work but that's hard to do on the airplane. I'm flabbergasted that somebody built that and went and flew it. Wow.
__________________
Scott Black
Old school simple VFR RV 4, O-320, wood prop, MGL iEfis Lite
VAF dues 2020
Instagram @sblack2154
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12-11-2014, 06:16 PM
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Join Date: May 2014
Location: KBVY Massachusetts
Posts: 1,100
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Does one have to remove the wing to discover thing slike this? If you were going to buy a -4 is there a way to catch this in an inspection?
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12-11-2014, 06:30 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Two thoughts for you.
First, make sure you wrap the main spar in plastic (cling wrap might work) to keep dust and dirt from getting between the spar laminates.
Second, ask Van's if you can have someone weld the hole close and then re-drill it.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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12-11-2014, 08:04 PM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,435
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Save the effort - no way can you weld this and retain enough strength to be safe. Not a chance.
Dave
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12-11-2014, 08:16 PM
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Join Date: Aug 2006
Location: Secluded Lake,Alaska (AK49)
Posts: 359
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Referance
Quote:
Originally Posted by David Paule
Save the effort - no way can you weld this and retain enough strength to be safe. Not a chance.
Dave
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There is an AC43.13 reference that advises not to heat aircraft grade aluminum past 212 degrees to prevent adverse effects on the temper.
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12-11-2014, 09:38 PM
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Join Date: Dec 2009
Location: Montreal
Posts: 1,456
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Quote:
Originally Posted by David Paule
Save the effort - no way can you weld this and retain enough strength to be safe. Not a chance.
Dave
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You can weld castings and thin sheet used for fairings and non structural parts but not on something like this, where the strength comes from the heat treatment.
__________________
Scott Black
Old school simple VFR RV 4, O-320, wood prop, MGL iEfis Lite
VAF dues 2020
Instagram @sblack2154
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12-11-2014, 09:48 PM
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Join Date: Feb 2007
Location: colorado
Posts: 873
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scary
REPLACE IT thats a smoking hole in the ground waiting to happen!
I cant believe someone said weld it. OMG.
CM
__________________
RV-4 "Mr. Twister"
Pitts S1S "Mexican Red" sold and missed
Mr. Twister Airshows
Rocky Mountain Renegades
the mission... have fun.
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12-12-2014, 03:06 AM
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Join Date: Dec 2014
Location: Melbourne beach, fl
Posts: 190
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Thanks guys. I will contact Van's just to get there two cents, but I think they will agree with you guys. The only way I see to fix it without replacing the whole piece is to updrill it. I will have to check on the edge distance on that. Does anyone know what is allowable?
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12-12-2014, 03:19 AM
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Join Date: Dec 2014
Location: Melbourne beach, fl
Posts: 190
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Just to let you know this flew for 1300 hrs like this.
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12-12-2014, 04:59 AM
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Join Date: Feb 2007
Location: colorado
Posts: 873
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Quote:
Originally Posted by Jstov
Just to let you know this flew for 1300 hrs like this.
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He is a lucky guy i would say....I wouldnt knowingly fly it for 5 minutes with that notch in the rear spar attach hole. Cant tell for sure but it looks like they just riveted a small section on where the hole is vs the complete doubler?
I would look at the bolt holes attaching the empenage too. If the qualty of that hole didnt matter to the builder I would be concerned about other critical points. Did he build the spar?
Cm
__________________
RV-4 "Mr. Twister"
Pitts S1S "Mexican Red" sold and missed
Mr. Twister Airshows
Rocky Mountain Renegades
the mission... have fun.
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