Boeing wants to take on Amazon's drone delivery service

Boeing unveiled a prototype for a massive remote-controlled drone Wednesday, meant to deliver cargo up to 500 pounds. Eventually, it wants the drone to fly itself. Such ambitions put the plane maker in direct competition with Amazon, which in December 2013 said it was developing Prime Air drone delivery service. Both companies say their drones are intended to be able to deliver goods within at least a 10-mile radius. Amazon's drones, however, are only intended to carry packages up to five pounds--a payload that the retailer says encompasses nearly 90% of its sales.