Sue Pertwee-Tyr
Accuphase all the way down
Drone, (Wikipedia)Where did I make mention of flying drones?
There are already drone trials taking place, wheeled variety.
An unmanned aerial vehicle (UAV) or uncrewed aerial vehicle, also known as unmanned aircraft or uncrewed aircraft (UA), commonly known as a drone
If you Google 'what non-flying drones are there?' (or similar) the first page of hits (didn't go further) doesn't actually mention any.