Huang Xuhua led the designers to build a water-drop submarine with lower underwater resistance than the conventional streamlined submarine, which solved the maneuverability problem of the nuclear submarine. Foreign technology blockade increases the difficulty of research and development.

In order to strengthen the stability of the hull when the missile is launched, a cabin is specially designed, which can hold a large gyro weighing 65 tons. Underwater space is extremely precious, occupying the golden space of submarines.

After repeated calculation, analysis and research, by adjusting the equipment layout in the nuclear submarine, Huang Xuhua team solved the problem of a 65-ton gyro, saving space for the submarine, and the swing angle, pitch angle, yaw angle and heave angle were all close to zero.

Due to the strict secrecy system, for a long time, Huang Xuhua was unable to reveal what he really did to his relatives and friends, and because of the tight development work, he never went back to his hometown Haifeng to visit his parents from 1958 to 1986. In 20 13, Huang Xuhua's deeds were gradually "exposed", and relatives and friends learned the story.

1988 Huang Xuhua dropped in to see his mother during the South China Sea diving exam. The 95-year-old mother looked at her son, but she was speechless. We met again after 30 years. Huang Xuhua, 62, has gray temples. Facing his family and career, Huang Xuhua remained anonymous for 30 years.

Baidu Encyclopedia-Huang Xuhua