Flight test of unmanned aircrafts in Qinghai (1/6)

An unmanned aircraft designed to inspect power transportation lines in regions of high altitude flies during a test in Qinghai, a province on the Qinghai-Tibet Plateau, northwest China, Nov. 21, 2012. A research team of the Shandong Electric Power Research Institute (SEPRI) has recently conducted a flight test of unmanned aircrafts over the ground with altitude of 4,500 meters, which marks the end of the first round of the unmanned aircraft test project for inspecting power transportation lines on plateaus. (Xinhua)