First off, I just want to say that I appreciate any help in advance because I am driving myself crazy trying to figure this out.
Basically, I am trying to setup a simple fixed wing plane using arduplane, pixhawk 2.4.8, and mission planner. I followed all the steps online and watched videos (Painless360) helping to set it up. Everything works perfectly except the motor won’t start and I can’t throttle it. On the servo configuration page, the throttle bar correctly follows the inputs from the transmitter. For reference I am using the Taranis Q7X7 and X8R. I am using a simonk esc and a multistar motor. I have used all these exact components for quads before and it works great (I went back and made another quad today with the same equipment to make sure it all still works and it does). I am also running the latest version of arduplane (I believe 4.0.5).
Thus far I have tried using older firmwares, different esc/motor combinations, and Qgroundcontrol. I have tried the method of manually calibrating the ESC by powering it separately with the RC throttle all the way up and then powering it down (this did not work). I know all my hardware works and I can tell that the receiver is getting the throttle inputs because they show up on both the radio calibration and servo page. I am using the standard method of throttle on channel 3. Like I said the servos all work and move to stabilize the plane when I move the pixhawk around.
It seems like the issue is somewhere between the pixhawk communicating with the esc. Like I said earlier, it’s weird though because the same rails on the pixhawk work with the same ESC/motor when in arducopter.
If anyone has any ideas or needs more information to help, please let me know!