From: N295VV@aol.com
Message-ID: <0.ca29c3e0.25988bcb@aol.com>
Date: Mon, 27 Dec 1999 04:30:51 EST
Subject: Re: Safety Issue Revisited
To: lancair.list@olsusa.com
Mime-Version: 1.0

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From :  David Jones

Since it is slow this week on the website, I will take this opportunity to 
caution people about safety issues with the electric trim on the planes you 
are building.

Be sure to put adjustable pots inline with the MAC trim actuators.  You need 
to slow down the response time in the movement of your trim on your control 
surfaces by about 75%.   You can order the pots from MAC, and they are not 
very expensive, and are totally adjustable with a small screw driver.

Also, if you use the MAC stick grip, you probably want to make a flat 
aluminum collar to separate your hand from the top of the grip, particularly 
if you are just beginning to fly with the grip.  

The MAC grip has the microswitches located on the top of the grip--and in the 
stress of learning to fly your new plane, it is very easy to slide your hand 
over the top of the grip to get more leverage--I did this and my whole life 
passed before my eyes as I was running the trim to the stops and couldn't 
figure out why my plane was gyrating towards the ground.

It is a very nice grip, wonderfully designed, but needs the trim switches 
recessed or protected in some way to prevent inadvertant run-away entries by 
a wandering palm or finger.   I made a hinged flat collar of aluminum that 
slipped below the head of the grip--and I have 400 hours in the plane and 
still use it to this day--it may have saved my life once or twice.

David Jones, Pecatonica, Illinois
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