Hi Michael, have you tried to check your "Failsafe settings", like "Failsafe Minimum Distance in centimeters"? Had this set wrong once and the throttle has not come in as I was too close... Also, check your setting in "Advanced tuning" in "RTH and Landing Settings" and "Fixed Wing Navigation Settings" the "Loiter radius [cm]" - must be right. Mine is set for 100m, but beware it is in cm! So it must display 10000. I missed a zero once like this: "1000" and then it doesn't work... Good luck and let me know how you get on! Best Regards Mike
Mike, I think I had my nav_fw_bank_angle set too high. It was set to 50 during this flight. I believe that, along with a small loiter radius (nav_fw_loiter_radius = 5000) led to the failure. I increased my loiter radius to 10000 and reduced the bank_angle to 30, and didn't have subsequent problems.
