![IDF-9 IDF-9](https://www.idea-fly.com/themes/tianxing/img/img/list.png)
IDEAFLY Thor-850 Fishing Drone has the most stable flight control system in the world. The flight control system used by Thor-850 fishing drone is Holybro open-source flight control IDF-9.
![The built-in automatic GPS course correction and GPS compass interference monitoring The built-in automatic GPS course correction and GPS compass interference monitoring](https://www.idea-fly.com/themes/tianxing/img/img/list.png)
This flight control of our Thor-850 fishing drone has the built-in GPS automatic heading correction function and GPS compass interference monitoring function. The combination of the two can provide more stable flight and minimal electromagnetic interference. Thus, IDEAFLY Thor-850 fishing drone series is more suitable for complex fishing environments.