Thank you very much for your answer.
I have been trying hard to setting up without success my quad ranger VTOL. Today I have flashed the stable 1.5.5 firmware again, selected the right airframe (quadranger VTOL, I have done the gyro, compass, accelerometers, airspeed sensor, rc calibration succesfully, flying modes, power and battery calibration, but no luck at all trying to make the pusher engine to work in my bird.
So far the 4 quad (Main outputs 1 to 4) engines run perfectly in the quad mode but if I am in the fixed wing mode I can control L and R ailerons (aux 1 and 2), elevator (aux3) and rudder (aux4) perfectly but not the pusher engine in the aux5 output (as soon I powered the pixhawk and after initialisation gps fix and arming it keeps beeping. I have tested the esc and motor conecting it directly to the receiver and performed esc calibration succesfully and run smotlhly with the throttle lever
I am starting to think that this it can be related to my RC setup, Graupner MC32 , receiver GR24 conected through SUMD, I had to swap the receiver output channels as you know Graupner output channel 1 is throttle, so in my MC32 transmitter I had to swap the receiver output channels sequence to:
servo 2---output 1
servo 3---output 2
servo 1---output 3
servo 4---output 4
I will not give up....