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MarkIII Xtra first flight

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Mike Welch

Joined: 13 Feb 2011
Posts: 272

Posted: Tue Mar 15, 2011 9:01 am Post subject: MarkIII Xtra first flight

> mike

 	  Quote: 	
		   the spring adjustment is to add nose up trim... it will not assist with 

 down trim..

 if he raises the leading edge of the stabilizer, that will eliminate the 

 need

 for pushing forward on the stick. if someone did some experiments with the 

 leading

 edge of the stabilizer> boyd young

 mkiii 


	


  

 Boyd, 

  

   Thanks for the clarification.   

  

   Has anyone considered an Ray Allen electric servo to adjust a trim tab?  Wouldn't

 something like this allow for an initial in-flight solution to a heavy "forward 

 or aft" stick force?

  

   Here's what I did.  (see photo)  I also built an electronic circuit the PRECISELY tells me

 the exact position the trim tab is in.    (I have a vertical line of 10 LEDs (green, orange, red)

 the show the specific and exact position.)

   The trim tab operation is controlled by a toggle switch on my stick grip for nose down,....or 

 nose up trim.   

  

 Mike Welch

 MkIII

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