Mailing List lml@lancaironline.net Message #55165
From: Dan Ballin <dballin@gmail.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Legacy Trim Tab Servo Speed Control
Date: Mon, 24 May 2010 08:08:18 -0400
To: <lml@lancaironline.net>
I have a module (no longer made), but has adjustable speed settings
driven by a flap micro switch.

Haven't flown yet so don't know how well it works, but seems good in
theory and simple.

Dan Ballin
LEG2 #286

On Sun, May 23, 2010 at 8:52 PM, Valin & Allyson Thorn
<thorn@starflight.aero> wrote:
Hey Legacy gang,



Could I get recommendations on the best way to set up the Ray Allen trim tab
servos in the Legacy so that they have the right sensitivity throughout the
range of flight speeds?  I know from 99L that at cruise speeds without a
speed control rheostat to slow the tabs down that they’re too sensitive –
slightest tap on the switch causes a “bump”.



Ttcwtech.com has a $49 speed switch that they sell that can be used to set a
speed where the sensitivity changes – up to 145 kts.  Is it good enough to
have a speed control rheostat cut in to slow the tabs down once the gear and
flaps are up?  Or, has anyone found a rheostat that’s directly driven by the
airspeed so that the sensitivity is always in proportion to flight speed?
Other ideas?



Thanks,



Valin Thorn

Eternal Legacy project

Houston, Texas USA




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