REFLECTOR: castor angle.

[John Dibble]

I guess you have FG, so my comment doesn't apply.

John

Lou Stedman wrote:

>  John educate me. What is a pivot bolt? Lou Stedman
> Velocity N7044Q
> Olean, NY
>
>      ----- Original Message -----
>      From: John Dibble
>      To: Velocity Aircraft Owners and Builders list
>      Sent: Sunday, November 23, 2008 7:44 AM
>      Subject: Re: REFLECTOR: castor angle.
>       I experienced shimmy at 30 kn while braking.  The shimmy
>      was in the right main.  The problem turned out to be a bent
>      pivot bolt.  You can check for that by loosening the nut and
>      turning the bolt to see if there is a tight and a loose
>      spot.  If there is, a short term fix is to leave the bolt in
>      a tighter position  (check that gear extends properly).
>      That will make it tighter and eliminate shimmy if that's
>      where it's coming from.
>
>      John
>
>      Lou Stedman wrote:
>
>     > Got a question for the group. I have read that castor
>     > angle is important to prevent wheel shimmy. I am led to
>     > believe that the castor should be level. I have fixed
>     > gear. While repairing my main landing struts I had to
>     > remove about two inches of length. I now have a very
>     > slight wheel shimmy on landing at about 50 kts. while
>     > breaking.  I am wondering if this could be caused by a
>     > change in the angle of my nose wheel castor. if so how do
>     > I change it? Lou Stedman
>     > Velocity N7044Q
>     > Olean, NY
>     >
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