直 9、直 11直升机及涡轴 8A航空发动机已取得了民航总局颁发的型号合格证，这标志着国产直升机正式进入民用市场，这是我国在航空高技术领域中军转民的一项重要突破。 　　直 9直升机是由航空第二集团公司哈飞集团生产的双发、单旋翼带涵道尾桨轻型多用途直升机；直 11直升机? The helicopters of the Straight 9 and Straight 11 and the 8A of the turboshaft have already obtained the type certificate issued by the Civil Aviation Administration of China, which indicates that the domestic helicopter has officially entered the civil market. This is an important breakthrough in the transformation of the Chinese military into civil aviation high-tech fields. . The Straight 9 Helicopter is a twin-engine, single-rotor, winged, tail-rotating, light-duty, multipurpose helicopter produced by Hafei Group, an Aerospace second group company.