REFLECTOR: Shimmy on landing

[Wayne]

Same for me.
I kept thinking I had corrected the shimmy.Then I ground off the chin and 
the nose gear went through the prop after a greaser landing.
Tweaking the caster fixed the problem on the new gear leg so I don't even 
need the steering lock I added.
Wayne
----- Original Message ----- 
From: "Richard Riley" <richard at riley.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Sunday, April 09, 2006 10:44 AM
Subject: Re: REFLECTOR: Shimmy on landing


> At 07:34 AM 4/9/2006, you wrote:
>>Richard Riley wrote:
>>>A friend of mine snapped his front LG strut on an XL-RG last year.  It 
>>>was a very gentle landing, but he'd had several shimmy events previously 
>>>and strongly suspects it was shimmy that did it.  I looked at the break 
>>>under a high power microscope, there was no sign of corrosion or 
>>>crescents in the break, it was a sudden, complete failure.
>>Most likely it was already cracked from the previous events and he 
>>miss-interpreted the visual cues.  He would have been wiser to rectify it 
>>after the first event instead of repeatedly punishing the nose gear until 
>>complete failure.  But then hind site is always 20x20.
>>
>>Shimmy on any plane should be correct4ed immediately.  On our fully 
>>castering nose wheels its even more  important.
>
> He was trying to correct it from the first incident, but (in hindsight) 
> not aggressively enough.
>
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