<p>The largest unmanned helicopter ever manufactured by China is now in service in Shandong province, authorities said Thursday.<br /><br /></p>.<p>The mid-sized helicopter has passed all required flight tests and is fully operational, reported Xinhua.<br /><br />The helicopter, capable of flying as high as 3,000 meters at a top speed of 161 km per hour with a payload of 80 kg, can be controlled from a maximum distance of 150 km or programmed to fly automatically, said Cheng Shenzong, board chairman of Weifang Tianxiang Aerospace Industry Co. Ltd., a company that helped develop the aircraft. <br /><br />The helicopter can be used to conduct geological surveys, as well as aid in emergency rescue operations, aerial photography and forest fire prevention, Cheng said. <br /><br />At least 15 such helicopters have been ordered for production.<br /></p>
<p>The largest unmanned helicopter ever manufactured by China is now in service in Shandong province, authorities said Thursday.<br /><br /></p>.<p>The mid-sized helicopter has passed all required flight tests and is fully operational, reported Xinhua.<br /><br />The helicopter, capable of flying as high as 3,000 meters at a top speed of 161 km per hour with a payload of 80 kg, can be controlled from a maximum distance of 150 km or programmed to fly automatically, said Cheng Shenzong, board chairman of Weifang Tianxiang Aerospace Industry Co. Ltd., a company that helped develop the aircraft. <br /><br />The helicopter can be used to conduct geological surveys, as well as aid in emergency rescue operations, aerial photography and forest fire prevention, Cheng said. <br /><br />At least 15 such helicopters have been ordered for production.<br /></p>