I pulled from the git repo and have gotten the code to work and made several customization changes. I need to be able to modify the TCP/UDP messages’ data between the Mission Planner simulation and the flight controller which I think is ArduPlane. I found where the ArduPlane.exe is called in SITL.cs @ StartSITL(). It then opens a TCP client on port 5760 and UDP client on 5501. I can not find the location(s) where the flight controller data, LLA, attitude, and time, is pushed and read on these ports. Can someone point me to where this happens? With all the threads and different projects it is hard to track the data path. Thank you.