Australia will buy Triton long-range unmanned surveillance drones, but the Abbott government isn’t saying how many or how much they’ll cost. The Northrop Grumman MQ-4C Triton is a large drone – its wingspan is bigger than a Boeing 737 – able to fly at 16,750 metres or higher for more than 30 hours. It observes with radar and camera systems, beaming imagery back to ground stations in real time. Read More