----- Original Message -----
Sent: Thursday, May 27, 2010 2:14
PM
Subject: Re: [LML] Re: Legacy Trim Tab
Servo Speed Control
I installed the Safety Trim module primarily to
handle the two trim switches on the sticks and to deal with the potential
(although extremely unlikely) of runaway trim due to a stuck switch or shorted
switch. The stock ES elevator trim is uncontrollable in the full down
position. I also installed a shorter throw trim servo to eliminate
unneeded down trim. The two speed feature was more of an extra bonus in
my airplane. I flew my ES with full speed trim for 4 years, bumping the
trim switch, and it wasn't that big of a deal. With the two speeds you
hold the switch for about a half second instead of tapping.
The Safety Trim module handles two trim switches
automatically. It has a 3 second auto-off feature to catch runaway
trim. It has a panel mounted three way momentary switch that allows the
pilot to reverse the trim travel in the event of a stuck or shorted
switch. And a two speed (both adjustable) feature that can be operated
by a flap microswitch or airspeed switch.
I removed my Ray Allen speed control module and
didn't need the Ray Allen Relay Deck that has been a failure point in the
past. Although the new relay deck REL-2 is supposed to be more reliable
that the old REL-1
The Safety Trim is just another goodie in a long
list that wasn't necessary, but something that I thought added some additional
safety and functionality
Mike Easley
Colorado
Springs