While engaged in aircraft design and development, Lu also actively carried out theoretical research and achieved results. 1964, delivered a paper "Design of ducted fan amphibious helicopter" at the inaugural meeting of China Aviation Society, and analyzed the flight principle of a unique aircraft. 1974 compiled the "Aircraft Overall Design (Lecture Notes)", which provided a teaching material for Nanchang Hongdu Institute of Technology to train general and aerodynamic design technicians and played a guiding role in the work of aircraft general and aerodynamic designers. 1983, at the national transonic symposium held in Lushan, Lu published the paper "On the relationship between shock wave and limit line and the conditions for generating shock wave on the surface of two-dimensional airfoil", which made a deep mathematical analysis of the properties of limit line in two-dimensional transonic flow and its relationship with shock wave, and opened up a way to solve complex aerodynamic problems with Chaprekint solution.

From 65438 to 0980, Lu presided over a large-scale ministerial scientific research project-the pre-research task of variable sweepback technology. After more than 8 years of efforts, this pre-research project has made a major breakthrough in design technology. This achievement has successfully solved a series of problems such as aerodynamic layout (rotor position, airfoil, dynamic response, etc.). ), wing structure optimization (rotor joint, three-dimensional stress calculation, multi-constraint optimization technology, etc. ), driving mechanism and flight control system, which laid the foundation for the development of a new type of variable swept wing aircraft in China and filled the gap in China. This project won the first prize of ministerial scientific and technological progress.

From 65438 to 0983, Lu served as the director of the Science and Technology Committee of Nanchang Aircraft Manufacturing Company. He set up a working group of the science and technology commission, formulated rules and regulations and work plans, actively engaged in the organization of the activities of the grass-roots science and technology commission in Central China in the space system, and promoted the further development of the activities of the grass-roots science and technology commission in this area.

Lu Zai 1985 was rated as a national science and technology expert with outstanding contributions, and in 19 1 he was awarded the honorary certificate of chief designer by the Commission of Science, Technology and Industry for National Defense and won the aviation gold medal, the highest award in the aviation industry. 1995 was elected as an academician of China Academy of Engineering.

1982, joined the China * * * production party. On June 6th, 2000, 65438 died in Beijing.

He used to be a draftsman and designer of the first aircraft factory and the second aircraft factory of Kuomintang government. Later, I went to the United States and Britain for an internship. 1949 returned to China. He has been the designer of Shenyang Aircraft Factory, the deputy director and chief designer of Nanchang Aircraft Factory Design and Research Institute, the first president of Nanchang Hangkong University, the vice chairman of Jiangxi Science and Technology Association, and the vice chairman of the fourth to sixth CPPCC in Jiangxi Province. He was a deputy to the Fourth to Seventh National People's Congress. Because of the design and modification of "Wu Qiang" aircraft, 1985 won the national special prize for scientific and technological progress. He wrote hodograph method and other papers that extended from two-dimensional space to three-dimensional space.