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From: Robert R Pastusek <rpastusek@htii.com>
To: Lancair Mailing List <lml@lancaironline.net>
Subject: RE: [LML] MkII tail trim servo
Thread-Topic: [LML] MkII tail trim servo
Thread-Index: AQHPdqHCQzRZFc/A70im+HkHH5EB75tOXt5g
Date: Fri, 23 May 2014 16:54:01 +0000
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Rob,

An easy "adjustment" is to cut a small amount from the end of each clevis t=
o shorten the link as needed. If it gets too short, you might consider usin=
g two metal clevis instead of these FRP units--they are available from ACS,=
 and are a bit shorter. Shortening the units provided worked for me on my I=
V-P; now at 1200 flight hours.

Bob

Hi everyone,

I'm getting ready to close-out my elevators on my MkII tail, but I also wan=
ted to have all of the innards in place to balance the elevator properly.
I made the bracket with the pocket for the trim servo, but with the clevise=
s for the Ray Allen servo, I'm not convinced it actually fits in the elevat=
or.
Per the latest rev of the instructions, I was planning on cutting the trim =
tab out after the elevator is closed, but trying to do the mock-up looks li=
ke a tight fit.  I made a test rod which allows me to put the two clevises =
right against each other and it seems like there is barely enough room to r=
each the appropriate place where the hinge would be.  I think my trim tab i=
s the right size--it is 2" from aft to forward at BL24 which matches the pl=
ans and drawings.

I added a picture as to what I'm talking about.  The servo is approximately=
 halfway to represent a neutral trim and have equal upward and downward mov=
ements.

Is my trim servo bracket wrong?  Is my trim tab too big?  Or am I over-thin=
king this?

Thanks,

-Rob