REFLECTOR: FG Nosewheel Shimmy

Wed Mar 7 21:37:53 CST 2012

I balanced my nose wheel myself by setting the axel on 2 aluminum angle
pieces which were sitting on a couple of paint cans.  You slowly roll it
back and forth adding weight until it won't stop in the same place any more.
I used these stick on weights
https://www.pegasusautoracing.com/productselection.asp?Product=3335 I never
had even the slightest shimmy.

Darrell

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Mark Magee
Sent: Wednesday, March 07, 2012 4:17 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: FG Nosewheel Shimmy

He cleaned the wheel with alcohol I believe and then just stuck them on. As
I recall he stuck them on a horizontal surface so that centrifugal force
will help them stay put.

Mark B. Magee
Sent from IPhone 4

On Mar 7, 2012, at 2:44 PM, Kevin Baker <flykb at verizon.net> wrote:

> After you apply the sticker weights how do you keep the weight from coming
off?
> Thanks
> Kevin
> 
> .
> 
> On Mar 7, 2012, at 14:13, Mark Magee <edjonesbrady at gmail.com> wrote:
> 
>> Yes by hand. No charge either. Smooth as silk now.
>> 
>> Mark B. Magee
>> Sent from IPhone 4
>> 
>> On Mar 7, 2012, at 12:15 PM, Scott Derrick <scott at tnstaafl.net> wrote:
>> 
>>> so he just spun it by hand?
>>> 
>>> -------- Original Message --------
>>> Subject: Re: REFLECTOR: FG Nosewheel Shimmy
>>> From: Mark Magee <edjonesbrady at gmail.com>
>>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>>> Date: 03/07/2012 10:58 AM
>>> 
>>>> Hi Kevin,
>>>> Interesting question: First I kept it on the yoke and I took it to the
local tire shop and asked for help. The guy I know who owns the shop (rural
central Texas: lots of tractor tire carcasses about) said nothing to me and
walked it over to his vise and using a rag to prevent damage to the aluminum
clamped the yoke in his vise.
>>>> "How fast will this tire go," he asked as a small crowd began to gather
and watch.
>>>> "90 MPH" I replied.
>>>> He again said nothing and began to spin the tire (yoke clamped
vertically) and watch where the tire settled and began applying stick on
weights opposite the low spot. After a while of this methodology the tire
would never land on the same spot after spinning an it was balanced.
>>>> A rancher walked in to his shop an seeing the on-lookers asked the shop
owner what he was doing.
>>>> "Mark says he needs to go 90 MPH on his -ZTR- (mower)!
>>>> They all got a good laugh at my expense... I explained it was a flying
machine.
>>>> Any tire shop that handles ag or lawn equipment can balance your
nosewheel or main mounts for that matter, the old fashion way.
>>>> 
>>>> Mark B. Magee
>>>> Sent from IPhone 4
>>>> 
>>>> On Mar 7, 2012, at 11:40 AM, Kevin Baker<flykb at verizon.net>  wrote:
>>>> 
>>>>> Hi Mark
>>>>> How did you balance your wheel ?
>>>>> 
>>>>> Thanks
>>>>> Kevin
>>>>> 
>>>>> .
>>>>> 
>>>>> On Mar 7, 2012, at 11:20, Mark Magee<edjonesbrady at gmail.com>  wrote:
>>>>> 
>>>>>> All,
>>>>>> In cogitating on the nosewheel shimmy trial I went through, I forgot
to mention that Scott Swing recommended a perfectly balanced nosewheel,
which I took care of. In balancing the nosewheel/tire combo it was readily
apparent it was grossly out of balance. Apparently an out of balance
nosewheel/tire combo is the 'trigger' that starts the destructive shimmy
(vibration).  So my nosewheel shimmy was solved in 2 pieces: Jorge Bujanda
style bumper (I made my own from a block of urethane) and a perfectly
balanced nosewheel/tire assy. Once done do a high speed taxi to confirm.
>>>>>> 
>>>>>> Ahhhhhh... Smooth as glass now.
>>>>>> 
>>>>>> Mark B. Magee
>>>>>> Sent from IPhone 4
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