lvmdl

My Feedback: (16)

I´m using a Futaba 8UAPS, dual servos in the elevators CH2 and
8. For normal fligh I use D/R at 40%, when I swich to full rate for
3D, both elevators moves pichind down the plane. It happens in two differents planes with a similar programing. The servos are
Fut 9303 in one plane and 9402 in the other. Is anybody able to
help me out? Thanks Marcelo

bob_nj

My Feedback: (62)

Can't remember how the "U" series programs dual elevator servos. Are you using a pmix?

lvmdl

My Feedback: (16)

The U series programs the dual elevator using alvtar. it is not a mix, it is a program to use the elevators like a jet so it moves as the ailerons moves following the same direction. You have to decrease to zero the relationship with the aileron then you get only the elevator movement. Thanks Marcelo

jetranger-RCU

My Feedback: (1)

check to make sure no flap mix is on

amcross

My Feedback: (2)

It sounds like your elevator pot is slipped and your radio needs service. To check for sure, go into a blank model memory. set a really low rate and away high high rate. Input trim into the model while in high rate. now switch to low. do you see a change? i bet you do. This means your elevator pot is slipped and is mis-reading center.

lvmdl

My Feedback: (16)

I have check what you say and you are wright, in a blank memory
the same fails accours so I have to service the radio. Thansk a lot
for your help. Marcelo.-