China unveils drone that flies for 2 days without refuelling
China has unveiled its largest unmanned aerial vehicle 'CH-5' which can stay airborne for up to 50 hours without the need to refuel. The drone has a wingspan of 21 metres and will have a flight range of 20,000 km. It will be able to carry about 1,000 kg of equipment and up to 24 missiles, reported Chinese state media.