Mailing List lml@lancaironline.net Message #2819
From: John Cooper <snopercod@CITCOM.NET>
Subject: Nose wheel shimmy
Date: Mon, 05 Jul 1999 07:09:46 -0400
To: <lancair.list@olsusa.com>
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For Ed Armstrong--

Great explanation, Thanks. Two ideas for reducing the mass of the nosewheel:

1. Machine the rim sidewalls a little bit. The rim-halves on mine still
have the bosses where the hubcaps on the mains are supposed to screw in.
These could be machined off, and the sidewalls possibly thinned a little
bit on a lathe.

2. Magnesium Rims.

On stiffness of the structure: I've always thought the bearings and
journals where the nose-gear leg attaches to the engine mount were too
small in diameter. What are they .250 or .312? Personally, I believe these
small bearings are responsible for much of the flexability in the system. I
would go to .500 dia. if I were designing these bearing points. Would be an
easy retrofit, too. Just my .02cents worth
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