SLF (meteorologist) here. Sad to read about all of the incidents related to unreliable airspeed readings. However, I've seen reference to 'GPS altitude' in this thread so GPS data is obviously available to the aircraft systems - would it be desirable to have a small display of GPS ground-speed or 3D speed-through-space available, and perhaps a rough ISA-derived Mach number, incorporated into the flight display panel to provided some reference in the case of having to deal with a UAS situation?