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Old 12-10-2002, 09:26 AM
  #8  
etgkdis
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Join Date: Nov 2002
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Default FF9 vs JR 8103

I have heard that the following problem exists in a Futaba FF9. Would the same happen in a JR 8103?
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9C TX & R138DP with dual elevator servos (post # 1)

Ann,
I have a problem (question).
I have a GP 300s that I am putting together with the following channel designations.
1-aileron
2-elevator
3-throttle
4-rudder
5-choke
6-aileron
7-rudder
8-elevator

I have used flaperons for 1-6.
I used Ailevator for 2-8
I mixed rudder at 4-7

This is my problem.
1-6 movement is equal and opposite.
4-7 seems to be equal and opposite.
2-8 seems to be equal in displacement, but not in speed.
The elevator servos deflect the elevator the same amount but not at the same speed. I tried switching the servo channel and 8 is still slower than 2. I proceeded to change my receiver to a R148DF and found the same thing happening. I have the R138DP back in but want to know why this is happening? I noticed that I have always had to flight trim the elevator for balance but I always thought that this was because of how my planes were assembled and not do to the electronics. Any help would be appreciated. (I am using HS605BB servos)
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BR/Costas