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02-19-2019, 06:58 PM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
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Quote:
Originally Posted by Plummit
What constitutes "new"? When did the steps change?
-Marc
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I was thinking the same. I still feel like my RV9-A is "new" with only 2000+hrs on it. Cracked right step and all. I've been living on the wild side every time I climb into the pilot's seat for the last 8yrs(?). Sometimes it is good to "relieve stress", which a crack should be pretty good at.
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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02-19-2019, 11:15 PM
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Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 5,297
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Quote:
Originally Posted by TJCF16
The new steps you get from Van?s are beefed up with extra metal. Mine broke a couple of years back. The new ones are a lot different.
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They finally addressed the issue on the two seat steps by adding a gusset. I don't believe this applied to the 10 step, which is different. Given that you don't have a 10, I am guessing you mistakenly assumed they are all the same.
Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
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02-19-2019, 11:17 PM
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Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 5,297
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Quote:
Originally Posted by scard
I was thinking the same. I still feel like my RV9-A is "new" with only 2000+hrs on it. Cracked right step and all. I've been living on the wild side every time I climb into the pilot's seat for the last 8yrs(?). Sometimes it is good to "relieve stress", which a crack should be pretty good at.
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It is usually the right step. While my right cracked before 100 hours; Left is going strong at 600 hours. This makes me believe it is a vibration or harmonic issue. My left is used 20 times more than the right and always heavier folks on the left.
Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
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02-20-2019, 09:03 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Mark, did yours crack at the weld or about a 1/4" away from it, just outside the heat zone?
__________________
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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02-20-2019, 09:31 AM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,019
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Quote:
Originally Posted by Plummit
What constitutes "new"? When did the steps change?
-Marc
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Reinforced interior side of step. I have not seen an example of the actual step to down tube reinforced yet.
Example of cracked step requiring reinforcement.
*Photo from Russ' FB page https://www.facebook.com/russ.mccutcheon.7

__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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02-20-2019, 06:40 PM
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Join Date: Mar 2018
Location: Snead Island, Florida
Posts: 205
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No,
My step broke at the weld. The photos you show are classic case of not stress relieving a weld. It makes the metal fail where it was heated to weld without heating a larger area to stress relieve it. I am sure that the weld was ground down to make it look good and left little or no weldment to take the stress.
__________________
Mark
RV-10
Bought not built
EAA 180
48X
Last edited by MConner : 02-20-2019 at 08:08 PM.
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02-20-2019, 08:09 PM
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Join Date: Mar 2018
Location: Snead Island, Florida
Posts: 205
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Photos
A fellow -10 enthusiast will post my photos soon.
__________________
Mark
RV-10
Bought not built
EAA 180
48X
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02-20-2019, 08:44 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Quote:
Originally Posted by MConner
No,
My step broke at the weld. The photos you show are classic case of not stress relieving a weld. It makes the metal fail where it was heated to weld without heating a larger area to stress relieve it. I am sure that the weld was ground down to make it look good and left little or no weldment to take the stress.
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Just to clarify, neither Vans or its welding vendors (in instances where the welded parts are outsourced) grind on welds before shipping welded parts to customers.
If you are certain that grinding was done, it likely occurred during the build process.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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02-20-2019, 09:17 PM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,019
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__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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02-20-2019, 11:54 PM
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Join Date: Mar 2018
Location: Snead Island, Florida
Posts: 205
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Pictures
Thank you Carlos, if there was no grinding, then there was never any penetration on this weld. It was holding on by a thread.
This plane was built in 2011 and flown in the Phoenix desert until May 2018 when I bought it with 500 hours TT.
__________________
Mark
RV-10
Bought not built
EAA 180
48X
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