A complex network of automated logistics would support this flying warehouse and drone delivery system. Sensors within would keep track of inventory in real-time, allowing shoppers on the ground to browse and make purchases. Drones, once loaded with packages, would glide to their destinations below, using power only for slight steering adjustments. After delivery, they'd flitter off to a ground station to recharge or be loaded onto shuttles bound for their home in the sky. The airship would float at high altitude--up to 45,000 feet above ground, according to the patent--but with the lighter-than-air interior of the airship doing most of the lifting, there is no mention of the power it would need to operate or stay afloat.