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450 tradheli with 3.2.1 motor won't start

Hello everybody,

With my 450 Walkera where I put a 2.8 APM with 3.2.1 firmware, i can’t start the maint rotor motor.

I’have all the input working and I can see them on the radio calibration page. Then I can arm the motor but when I arm it the esc make the 2-3 little sound and try to turn the engine (like the initialization) but nothing more. I have the collective pitch who work but never the motor start (the motor is on the CH8 out).

And is that possible to make a switch like an Idle up? I see severals video on youtube with that but I can’t found any functions on mission planner…

Thank’s for any help!

Have a nice day!

Servers by jDrones