Google Already Testing Delivery Robots In Australia

In rural Australia, a drone delivers dog treats to a farmer. The robot is a proof of concept, part of Project Wing by Google X. The program is designed to show that delivery drones are possible, and it seems to be doing just that. Next for Google: figuring out the path from proven prototype to everyday utility.
The drone is a tail-sitter, taking off vertically with its body perpendicular to the ground. At rest, it looks like a tiny spaceship from a 1930s comic book. It’s a type of Vertical Takeoff or Landing (VTOL) rarely done with humans on board, because that transition, from vertical to horizontal and back again, is difficult for onboard human pilots to manage. For the drone it works fine, and the design lets the wing fly fast like a plane. It also means the drone can hover, and that’s where the delivery mechanism of Project Wing shines:
Mechanical engineer Joanna Cohen, trained at Cal Tech and MIT, designed the contraption. It consists of a few key parts. The first is the winch itself, which spools out the hi-grade fishing line. The second is the “egg,” the little gadget that goes down with the package, detects that it has reached the ground, releases the delivery, and signals that it should be cranked back up to the hovering UAV. If something goes wrong, there is an emergency release mechanism at the top of the line, “basically a razor blade,” Cohen told me, that allows the UAV to cut and fly.