8月17日16点35分,由中国航天科技集团公司一院抓总研制的我国目前运载能力最大的长征五号运载火箭,在六院101所完成了芯二级动力系统的第二次试车,取得圆满成功。至此,长征五号运载火箭重大地面热试验已全部完成,将于今年下半年在海南发射场进行合练,2016年择机进行首次飞行试验,2017年前后在海南 At 17:35 on August 17, a pilot of the Changzheng V that currently boasts the largest carrying capacity in China by the first hospital of China Aerospace Science and Technology Corporation and the second test of the core-two power system was completed at the No. 6 Hospital of 101 , A complete success. At this point, the major ground surface thermal test of the Long March V launch vehicle has been completed and will be co-trained at the launch site of Hainan in the second half of this year. The first flight test will be taken in 2016 and around Hainan in 2017