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To:  lml@lancaironline.net
Date: Sun, 07 Jun 2009 08:59:33 -0400
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From: billhogarty <billhogarty@hughes.net>
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Subject: Yaw Dampener
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For John Barrett:

I discussed the need for a yaw dampener with the folks in the Lancair 
Avionic shop back sometime in the late 90's when I was looking to 
purchase an autopilot.  Their opinion was that the yaw dampener and the 
flight director were just added expense so I took their advice and did 
not add them to my STEC-55. 

However when I first flew my L-IVP,  I found the plane to be quite 
squirrelly at low speed and it demanded large amounts of rudder trim 
with airspeed changes  Later, before I painted, I added a set of strakes 
which improved the handling but I still have to be careful with the 
rudder trim.

I also have the winglets and I find the aileron forces to be quite high 
altho the autopilot doesnt seem to notice.  I get a lot of spectator 
comment about the winglets and I think that they add a lot to the 
appearance of the plane even tho they might slow it down a little.

Regards, Bill Hogarty