And it would also be smart to use Carbinge for the hinge because
it won’t wear out and get slop in it. See website for details.
Shameless plug.
Regards,
John Barrett
Barrett/Garrett Enterprises, Inc.
www.carbinge.com
From: Lancair Mailing
List [mailto:lml@lancaironline.net] On Behalf Of lanny
Sent: Tuesday, June 05, 2007 8:52 PM
To: lml@lancaironline.net
Subject: [LML] Re: IV-P Rudder Trim
Scott,
I’m new to the LML site but I have built several aircraft
over the years. One thing that scares me on the Lancair is flutter.
I recently found a IV elevator trim that could easily be moved up and down as
much as 1” at the trailing edge. It turned out to the hinge that
the tab was attached to was bending. The owner had not had a problem with
flutter but the hinge was completely worn out due to vibration in only a couple
hundred hours. Lowering the attach point on the horn reduces the leverage
and increases the movement of the tab. This will make it too sensitive
and lessen the arm needed to prevent flutter. I don’t recommend it.
Lanny
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