alt Hacker NewsRapid adjustment of drone flighpaths with micro-thrusts? Getting interceptors out of tubes faster without explosions/temps/fumes? Anything where rocket propellant, heat is a problem?
Breaking, emergency braking in trucks? Kind of like reverse thrust in airplanes.
1. No rockets
Drones are extremely weight sensitive. Adding a heavy thruster would massively eat into the payload.
Trucks are also weight limited by the 80k rule. Brakes are far superior.