“Drone” is too wide a word

A journalist photographs two machines on the same tarmac. One weighs less than a bag of sugar and lives in a holiday catalog. The other is a five-seat electric aircraft chasing airline-like safety paperwork. The caption calls both flying cars of the future.

A drone is the everyday word for an aircraft without a person on board. That umbrella covers a pocket camera ship, a parcel hopper, a long-range military spy plane, and a one-way attack machine. Same word. Different jobs, masses, and rules.

The inventable unit is not the family name. Ask four questions: is anyone onboard; how heavy is it; how does it make lift; which rule book applies. Those four answers place the machine from toy to air taxi to weapon.

Invent from a category, not from “use drones.” Otherwise the brief is a brochure.

The tempting mistake is to treat a selfie quadcopter and a passenger air taxi as the same product because both use motors and batteries. They share wheels the way a bicycle and a bus share wheels.

That is what lets you ask what system you are actually flying.