File photo taken on Feb. 6, 2015 shows a two-seater electric aircraft RX1E flying in Shenyang, northeast China's Liaoning Province. After the test flights in low temperatures, RX1E has been put into production recently. The domestically developed electric aircraft has a 14.5-meter wingspan and a maximum payload of 230 kg. It can fly at an altitude of 3,000 meters. (Photo: Xinhua/Yao Jianfeng)
