The Australian test flight marks the culmination of the first phase of Project Wing, a secret drone program that has been running for two years at Google X research lab.
Project Wing's aircraft have a wingspan of approximately 1.5m and have four electrically-driven propellers, weighing around 22lb.
The search giant has recently released a video on YouTube that shows Australian farmers ordering dog food:
Google said that its long-range goal was to develop drones that could be used for disaster relief by delivering aid to isolated areas.
Astro Teller, Captain of Moonshots – Google X's name for big-thinking projects, said," "Even just a few of these, being able to shuttle nearly continuously could service a very large number of people in an emergency situation."