Lire
http://psk.blog.24heures.ch/archive/2015/08/31/chine-premier-vol-du-rainbow-5-859610.html
http://www.ibtimes.com/chinas-largest-drone-rainbow-5-makes-its-maiden-flight-2075088
The CH-5, developed by the China Aerospace Science and Technology Corporation (CASC), appears to be based on the United States’ MQ-9 Reaper drone design and has a wingspan of 20 meters (66 feet) and a takeoff weight of about 3 tons. It can carry a maximum payload of around 900 kilograms – which allegedly is 2.5 times more than previous UAVs of the CASC Rainbow series.