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From: bob mackey <n103md@yahoo.com>
Subject: Flap (Relay) Failure 320
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As many have noted, a common failure mode in the LNC2
is the  flap's (electromechanical) relay wiring and contacts. 
Has anyone replaced their flap control relays with 
solid-state controls? I would expect a considerable
increase in reliability if properly designed. 

Taking that idea a step further, the limit switches 
could be made latching so that coasting past the 
switch would no longer be a problem. i.e. when 
the controller detects that the down limit switch
is triggered, it shorts the motor until it detects
the up control switch is closed. 

Has anyone done this already? 
Or should I go ahead and design it? 

-bob mackey
 bob #at# pure-flight.com



		
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As many have noted, a common failure mode in the LNC2<br>is the  flap's (electromechanical) relay wiring and contacts. <br>Has anyone replaced their flap control relays with <br>solid-state controls? I would expect a considerable<br>increase in reliability if properly designed. <br><br>Taking that idea a step further, the limit switches <br>could be made latching so that coasting past the <br>switch would no longer be a problem. i.e. when <br>the controller detects that the down limit switch<br>is triggered, it shorts the motor until it detects<br>the up control switch is closed. <br><br>Has anyone done this already? <br>Or should I go ahead and design it? <br><br>-bob mackey<br>&nbsp;bob #at# pure-flight.com<br><br><br><p>
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