First, let me say that I am a novice. I have been flying APM quads for a little over a year starting with a 3DR quad. I am now on my 5th APM based quad and keep having a similar situation cause me to crash. I don't know whether it is an equipment problem or pilot error and would greatly ppreciate some help.
Yesterday I was flying my Talon Quad shooting video with Mobius actioncam on a brushless gimbal. I flew the first part of my flight starting in stabilized mode and switched to alt hold, flew around for a couple of minutes, switched back to stabilized and landed so I could switch settings on the camera. I then took off again following the same scenario, flew out about 150 feet from me at an altitude of about 20 feet. I tried to come back towards me (flying in SIMPLE mode) and just "lost it". Quad got really unstable and crashed.
I have attached a log file. I do not have telemetry on this quad and am not real good at reading and understanding log files. I do see a GPS error in the log analysis, but believe this is after the quad crashed.
Can anyone give me some idea of what's going on? This is the forth or fifth time I have experienced the same situation and I'm getting really frustrated. I've been through vibration dampening, GPS/compass isolation, light shielding...
Here's my setup:
- APM 2.6
- NEO 6M gps/compass module (eBay, but I have had the same situattion with 3DR on earlier quads) on 3" mast
- FrSky D8R II plus reciever
- TX9 with FrSky module
- 2 axis brushless gimbal
- Mobius actioncam
Thanks for any help.