Just appeared on the BBC website
Amazon files patent for flying warehouse
Amazon files patent for flying warehouse - BBC News
excerpts:
Amazon has filed a patent for massive flying warehouses equipped with fleets of drones that deliver goods to key locations.
Carried by an airship, the warehouses would visit places Amazon expects demand for certain goods to boom.
It says one use could be near sporting events or festivals where they would sell food or souvenirs to spectators.
The patent also envisages a series of support vehicles that would be used to restock the flying structures
Also, it said, the drones descending from the AFCs - which would cruise and hover at altitudes up to 45,000ft (14,000m) - would use almost no power as they glided down to make deliveries.