How to increase upto 300m/s in PX4 Autopilot mode

Anyone can guide me on how I can achieve speed up to 300m/s in PX4 Autopilot?
Any recommended changes?

Regards

I’m curious what are you making that is going that fast?

Is it possible to achieve that speed?

I don’t know. In theory, I think everything in PX4 should be able to handle something that goes that fast if you have hardware for it. But I’m no expert on this, I have only worked with multicopters, which never go fast enough to have any problems.