Amazon plans for giant airship warehouses revealed

US firm filed patent document in 2014 for 'airborne fulfilment centres' that could use fleet of drones to make deliveries

Amazon has filed a patent for flying warehouses that could use a fleet of drones to make deliveries to customers.

A patent document filed in 2014 in the US describes giant airships as "airborne fulfilment centres" (AFCs) that could be stationed above metropolitan areas and used to store and quickly deliver items at times of high demand, using drones dispatched directly from the airship.