Hello @TunaLobster! I realize that it has been a while since you figured out your issue with X-Plane 11.33r2, but I was wondering if you’d have insight into why I’m unable to control any airplane on X-Plane (11.36), using MissionPlanner and SITL. I’m new to MP, ArduPilot/SITL, and I have been stuck on this problem for a while. Here is a link to my post about my issues.