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  #21  
Old 02-23-2013, 04:34 PM
Lan Vinh Do's Avatar
Lan Vinh Do Lan Vinh Do is offline
 
Join Date: Nov 2007
Location: moncton NB
Posts: 225
Default landing gear mount and landing gear leg

Hi
I had very bad vibration in my rv-10. Enough that i decide to stop flying until i find the problem . I already have balance all the tires, change for the plane around bracket for the wheel pant but it was worst and worst. Really bad.

I decide to change all the 3 tire for good year custom III. I already check if there was some loose in the gear leg before with the tire on. This time, i jack the plane and remove tire to put the new one. I have try to move the gear leg again. Nothing until i put a fair amount of rotation force and then, it move significantly. I check the bolt that atach the main gear leg and landing gear mount. I was almost able to rotate the bolt by hand. The nut was moving too. It look like it bottom out. I add a second washer and torque it. Did de same for my other main landing gear.

The flight today was really great. Almost no vibration. No shimmy !!.

I am afraid it is only a temporary fix. So i will order close tolerance bolt and reamer and if it just begin to vibrate again, i will put these close tolerance bolt ( or i will put them anyway at my annual in 5 month. )

Lan Vinh Do

( should have put the torque wrench at the last annual!!)
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RV-7A c-GOSV sold
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  #22  
Old 02-26-2013, 12:58 AM
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woodmanrog woodmanrog is offline
 
Join Date: May 2005
Location: Florida
Posts: 774
Default Stiffeners

I don't know why nobody believes what Van says about the round gearlegs but here is some info. Anybody interested in stiffeners contact me (woodmanrog@comcast.net) or Steve (in previous posts here) and we'll be happy to accomodate. Running the tires soft works in some situations but you will wear them out really fast. We run our planes with max tire pressure listed on the sidwall.
The gear leg stiffeners that I am making are the ones that Van?s suggests in his plans. Being a cabinetmaker, I found that what I make easily has been a burden to other builders. The stiffeners work on any round, steel gear leg. They are designed to eliminate vibration and oscillilation caused by the round shape of the steel gearlegs. The stiffeners are constructed of Pine, tapered and beveled to fit under Van?s standard fairing. Take it from me, they make a tremendous difference. I?ve had it both ways, I know! A side benefit is less springback (bounce) if you should flare a little too high on landing. (Of course none of us ever do that)

After installing one of my modified stiffeners on my 6A?s nose gear, I can highly recommend putting a stiffener here as well. I found that there was significantly less vibration on taxiing with a stiffener installed.
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  #23  
Old 02-26-2013, 02:41 PM
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ScottSchmidt ScottSchmidt is offline
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Join Date: Dec 2005
Location: Salt Lake City, Utah
Posts: 1,158
Default Can I buy some?

I would really like to buy some from you and give it a shot.
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Salt Lake City, UT

RV-10 N104XP (1280 Hours)
RV-12 N321UT (Sold)
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  #24  
Old 02-26-2013, 03:02 PM
douglassmt douglassmt is offline
 
Join Date: Nov 2008
Location: Missoula, MT
Posts: 714
Default Ditto

Quote:
Originally Posted by ScottSchmidt View Post
I would really like to buy some from you and give it a shot.
Me too. Email or PM me with details. Even though I haven't really noticed a consistent shimmy, it seems like a good idea to stiffen the gear a bit.
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RV-10 N242BD
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  #25  
Old 02-27-2013, 06:51 AM
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BGS BGS is offline
 
Join Date: May 2009
Location: Wahpeton, ND
Posts: 167
Default

You can add one more to the list to try. Not flying yet but hopefully this summer. PM me with the info on getting a set.

Thanks
Brian
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Brian Steeves
#40955 RV-10 - N413BS - Sold
It is Airworthy and Flying. But are they ever done?
First Flight 9/28/2013

#41714 RV-10 - N272BS
Phase 1 Finished, Getting Painted

#120849 RV-12 - N112AB
Flying. First flight Nov 26, 2017

Challenger II - N272MP - Sold
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www.briansrv10.com
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  #26  
Old 02-27-2013, 07:55 AM
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rleffler rleffler is offline
 
Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
Default

One of the pilots at work is selling these and other RV accessories.

http://www.aircraftspecialty.com/rvall1.html

I know that he isn't the manufacturer of these, but I don't know who is actually making them.

bob
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  #27  
Old 02-27-2013, 08:03 AM
Strasnuts Strasnuts is offline
 
Join Date: Jan 2009
Location: Salt Lake City, Utah
Posts: 554
Default Stiffeners

As my post states on Page 1, they really made the difference on my 10. I would have bought them instead of making them if they were available at the time. I'm sure the pine material works great and is what Van's recommends. I made mine from Oak.
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  #28  
Old 02-27-2013, 10:12 AM
TThurston TThurston is offline
 
Join Date: Jan 2007
Location: Orem, UT
Posts: 213
Default Picture of wood stiffeners

I've heard a lot of discussion about these wood stiffeners, but I've never seen any pictures. I have a hard time visualizing them. Could someone please post a picture.

Thanks
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  #29  
Old 02-27-2013, 10:18 AM
douglassmt douglassmt is offline
 
Join Date: Nov 2008
Location: Missoula, MT
Posts: 714
Default Here

Quote:
Originally Posted by rleffler View Post
One of the pilots at work is selling these and other RV accessories.

http://www.aircraftspecialty.com/rvall1.html

I know that he isn't the manufacturer of these, but I don't know who is actually making them.

bob
Look at the picture on the website Bob posted.
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RV-10 N242BD
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  #30  
Old 02-27-2013, 01:22 PM
Jackm Jackm is offline
 
Join Date: Feb 2012
Location: Prosser,WA
Posts: 272
Default Rotating torque on mains

There is a guy who posts here, that has a great video showing the effects on the mains during touch down...very interesting.
He just recently offered a straight trade for his Garmin 650 for my 430...so i need to be careful i don't jeopardize the deal by identifying him. He may share on his terms.
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Dues 2015 pd
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