Apm with 2 aileron servos

Hello all,
Can anyone tell me how to setup separate aileron servos for APM 2.5? I'm flying a fairly large powered glider and a Y lead just won't do. I've just bought the APM and I've looked at the Code Google site but I don't understand what they're talking about.
I can't find any answers to this question although I've seen several questions posted.
If I can't figure this out I'll have to start saving for another unit for RTH and stabilize, which is all I bought it for.
I've thought of just using one aileron on the APM and connecting the other direct from Rx to the servo.  I think this might work for RTH as that shouldn't involve any wild flying
I started looking through various forums but the search didn't find anything on this subject.

Many thanks for any help

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  • hi john, unless u use differential aileron, u do not need to use ch5 output of APM. Y cord will serve the purpose.  CH1 and CH5 need to be used simultaneously only in case you want differentail ailerons. differential ailereon is required only if there is significant adverse yaw in the aircraft. fly the aircraft in manual mode and see the yaw effect using ailerons only. then set the differential ailerons on ch5 and ch1 in ur Tx using CH Mix function and adjust the throw of servoes so that there is no yaw effect while using aileron. after this only you should assign CH5 of APM to second aileron and then set the servo throws in APM to the same ratio as that in your Tx set for manual flying mode.

  • http://code.google.com/p/ardupilot-mega/wiki/MultipleAilerons this might help too
  • Developer
    See http://code.google.com/p/ardupilot-mega/wiki/APM_Parameters#Servo_o...(RC5_FUNCTION) you
    http://code.google.com/p/ardupilot-mega/wiki/APM_Parameters#Servo_o...(RC6_FUNCTION) the same for RC7 and RC8
    You need to set these advanced parameters in mission planner, I.e. select CH5 for your second aileron servo set RC5_FUNCTION to 4. You don't need to output dual aileron channels from your Transmitter, if you are wanting to output The second Aileron you set RC5_FUNCTION to 18, NOW RC5 will take the channel 5 signal directly from your radio.

    Recommended setting would be set RC5_FUNTION to 18 and output the second Aileron channel on CH5. What ch do you currently use for the second servo?
    Does that help?
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