99 years ago today, on March 12, 1926 (January 28, 1926 in the lunar calendar), Huang Xuhua, the father of Chinese nuclear submarines, was born. Huang Xuhua, one of the founders of China's first generation nuclear-powered submarine development, is known as the "father of China's nuclear submarines". Born on March 12, 1926 in Tianqian Town, Honghaiwan District, Haifeng County, Guangdong Province. His ancestral home is Xinliao Village, Yuhu Town, Jieyang City, Guangdong Province (Hakka). He is a researcher and honorary director of the 719 Research Institute of China Shipbuilding Industry Corporation. China's first Chief designer of generation attack nuclear submarines and strategic missile nuclear submarines. He opened up the research and development of nuclear submarines in China and was elected as an academician of the Chinese Academy of Engineering in 1994. In order to keep the top secrets of the state, Huang Xuhua downplayed his relationship with his family during the development of nuclear submarines. A few years later, his work can be made public, and his family knows that he is engaged in a great cause. Photo: China's Type 091 nuclear submarine is ready to be launched. In 1958, China approved the nuclear submarine project. At that time, Sino-Soviet relations were still in the honeymoon period, and relying on the Soviet Union to provide some technical data was one of the measures originally considered. In 1959, the Soviet Union proposed to interrupt assistance to some important projects in China to put pressure on China. After listening to this, Mao Zedong vowed: "Nuclear submarines will be built in ten thousand years." Huang Xuhua, who had several years of experience in imitating Soviet conventional submarines and graduated from the Shipbuilding Department of Shanghai Jiaotong University, was selected to participate in the research. For more than 30 years, eight brothers and sisters didn't know that Huang Xuhua was engaged in nuclear submarines, and his father didn't know what he did when he died. His mother didn't see his son until he was 93 years old. Nuclear submarine is a cutting-edge project integrating nuclear power plants, missile launch sites and submarine cities. China's nuclear submarine development work started step by step with a nuclear submarine toy model. In order to develop nuclear submarines, newly married Huang Xuhua bid farewell to his wife and came to the test base. Later, he made his home on the island. In order to carry tens of millions of pieces of equipment and hundreds of kilometers of cables and pipelines, he has to contact more than 2,000 scientific research units in 24 provinces and cities across the country. The project is complicated. There were no computers at that time, and he and his colleagues used abacus and slide rules to calculate thousands of data. In 1964, Huang Xuhua finally led the team to develop my country's first nuclear submarine. Making China the fifth country in the world to own nuclear submarines. In 1988, a nuclear submarine conducted a deep dive test in the South China Sea according to the design limit. Huang Xuhua personally dived 300 meters, and was the first person in the world to personally launch a deep dive test by the chief designer of a nuclear submarine. Huang Xuhua has won the National Science and Technology Progress Special Award and the National Science Conference Award for many times, and has made important contributions to the national defense cause and the development of China's nuclear submarine industry.