十余年前,我国曾引进两架波音公司H-47“支努干”中型双桨运输直升机,将其大拆大卸进行测量反设计。通过工程技术人员的努力探索,我国全部掌握了该机的设计特点与制造工艺。在此基础上进行了创新和开发,数项指标又取得了重大技术突破,形成了具有我国特色的先进双浆直升机技术产权。 More than ten years ago, China had introduced two Boeing H-47s, “Chinooks” medium-sized sculls and helicopters, and demolished them for measurement anti-design. Through the efforts of engineering and technical personnel to explore, all of our country mastered the machine's design features and manufacturing processes. On the basis of this, innovation and development have been carried out, and several major technological breakthroughs have been made. As a result, technological property rights of advanced twin-blade helicopters with Chinese characteristics have been formed.