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01-21-2013, 10:32 AM
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Join Date: Dec 2008
Location: Glendale, AZ
Posts: 65
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possible replacement
I agree, it's very rare occurrence and that weld should handle the load without worry.
Here is a possible future replacement.
http://www.vansairforce.com/communit...ad.php?t=95453
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Jason Krause
RV-7 SB Finish Kit
Flying other people's stuff RV-9, Kit Fox.....
www.JDair.com
RV accessories including TailWheel Steering Links,
Upgraded Tailwheel Forks and Rudder Pedal Extensions.
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01-22-2013, 10:13 AM
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Join Date: Jan 2007
Location: Mount Vernon, IN
Posts: 1,270
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And here is another possible replacement: http://www.flyboyaccessories.com/sto...roducts_id=413
We use a high tech plastic bushing. Simple and superior to the standard bronze bushings. We have been supplying these for over 5 years now. Long wearing, easily replaceable, and no known problems as long as you don't powder coat the part and heat damage the bushing!
http://www.flyboyaccessories.com/sto..._image&pID=413
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Vince Frazier
www.f1aircraft.com
F1 Rocket and F4 Raider components
1-888-F1AIRCRAFT (1-888-312-4727)
www.flyboyaccessories.com
RV and Rocket Accessories, Tailwheels, Tools, & More
1-888-8FLYBOY (1-888-835-9269)
F4 Raider - under construction
F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold in 1994, purchased in 2018
Last edited by vfrazier : 01-22-2013 at 10:18 AM.
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01-22-2013, 11:20 AM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,435
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Quote:
Originally Posted by Jason Krause
Here is a possible future replacement.
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In the photos the area that failed in this instance look identical to the construction of the part that you're referencing.
Dave
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01-22-2013, 02:44 PM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Quote:
Originally Posted by David Paule
In the photos the area that failed in this instance look identical to the construction of the part that you're referencing.
Dave
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They have the same joint as the Van's one that failed. Really, really rare to see this. I have never seen or heard of one failing here.
The tailpost upgrades are offering a promise of less maintenance, so they are just trying to make people aware there are other options. This person may be in the market for a new tailwheel post if he does not repair this one. Marketing opportunity.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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01-23-2013, 08:09 PM
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Join Date: Sep 2007
Location: Bedford, TX
Posts: 1
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break
Similar break last November during landing

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01-24-2013, 08:35 AM
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Join Date: Jan 2007
Location: Mount Vernon, IN
Posts: 1,270
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Many of us do a dye penetrant check on the lower engine mount/gear leg area. Perhaps checking the tailwheel mounting socket would be a good area to inspect once in a while?
Here's one from Grainger that should work:
dye penetrant test kit
You might also take a look at your tailwheel mounting socket welds. As Dan Horton pointed out, these are thick walled steel parts. The weld beads should be substantial. Here's a good example: http://www.flyboyaccessories.com/sto..._image&pID=413
If your welds look puny, it is a very easy thing to fix by re-welding, or even adding a triangular gusset for "belt and suspenders" protection. I don't think the gusset is necessary if the weld is beefy though.
If you decide to re-weld, try not to overheat your bronze bushing. Stuff a hot dog into the hole to soak up the heat. When you're done welding, the hot dog will be cooked. Lunch is ready. Enjoy. 
__________________
Vince Frazier
www.f1aircraft.com
F1 Rocket and F4 Raider components
1-888-F1AIRCRAFT (1-888-312-4727)
www.flyboyaccessories.com
RV and Rocket Accessories, Tailwheels, Tools, & More
1-888-8FLYBOY (1-888-835-9269)
F4 Raider - under construction
F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold in 1994, purchased in 2018
Last edited by vfrazier : 01-24-2013 at 08:44 AM.
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01-24-2013, 10:15 AM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Quote:
Originally Posted by vfrazier
Many of us do a dye penetrant check on the lower engine mount/gear leg area. Perhaps checking the tailwheel mounting socket would be a good area to inspect once in a while?
Here's one from Grainger that should work:
dye penetrant test kit
You might also take a look at your tailwheel mounting socket welds. As Dan Horton pointed out, these are thick walled steel parts. The weld beads should be substantial. Here's a good example: http://www.flyboyaccessories.com/sto..._image&pID=413
If your welds look puny, it is a very easy thing to fix by re-welding, or even adding a triangular gusset for "belt and suspenders" protection. I don't think the gusset is necessary if the weld is beefy though.
If you decide to re-weld, try not to overheat your bronze bushing. Stuff a hot dog into the hole to soak up the heat. When you're done welding, the hot dog will be cooked. Lunch is ready. Enjoy. 
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I the only time I have done a die penetrant it has been on bare metal. Would it not require you to strip any coatings off before using this kit?
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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01-24-2013, 10:35 AM
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Join Date: Jun 2006
Location: 8I3
Posts: 3,564
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Rewelding will shrink the ID by a considerable amount. Usually when welding stuff like this if it can't fit back in the jaws of my lathe I set my mill up with a boring head/bar and shave a few thousandths off the ID to true the hole again.
The bushing should be pressed out to reweld. If its an oillite bushing have fun welding if its still in there, they tend to catch on fire readily.
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Please don't PM me! Email only!
Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
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01-24-2013, 11:37 AM
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Join Date: Oct 2005
Location: 08A
Posts: 9,500
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If a welded socket makes you nervous try an Aviation Products tailwheel. Likewise, there's nothing to stop one of our vendors from making aftermarket sockets from a CNC'd chunk of 7075 biillet.

__________________
Dan Horton
RV-8 SS
Barrett IO-390
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01-24-2013, 01:25 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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With the fork welded on...............................
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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