Mayday! Mayday! I tested the FPV system on the Raptor140B, with nearly disastrous results. Luckily, the APM was onboard to save the day!
I added the 400mw 1.3Ghz FPV transmitter to the 140B, and took it for a test flight. Right after take off I had significant control issues, and barely recovered the airplane. Thinking it may have been the flight controller, and wanting to determine the cause while the same circumstances were available, I double checked all connections and systems, and flew the aircraft again.
Again, it had significant control issues, even in manual modes. Luckily, the APM flight controller was able to safely loiter the airplane overhead while I determined that indeed the Turnigy 9x transmitter was no longer able to safely control the airplane.
This required me to create a mission mid flight, update the mission, update flight parameters, and attempt an autolanding, the first time I've tried this feature.
Watch the find out the results!