Xu Zhilei: The Man Behind China’s Second Generation of Nuclear Warheads
In the 1980s, Xu was appointed as chief designer for the miniaturized warhead sub-system on two new intercontinental ballistic missiles (ICBMs). Concurrently, Xu functioned as deputy chief designer for the DF-31 program. In this position, Xu oversaw the technical aspects of 10 nuclear tests. In heading up the warhead sub-system of the DF-31, Xu Zhilei ostensibly would have supported Wang Yongzhi (王永志) and Liu Baoyong (刘宝镛), who have been cited as the chief designers of the missile system (presumably the DF-31 and DF-31A respectively). Wang and Liu are both from the China Academy of Launch Technology's First Design Department. Other key DF-31 sub-systems include solid rocket motors, which unsubstantiated reporting refers to as the FG-6 and FG-7. Passing reference is made to Xu’s involvement in a neutron bomb (中子弹) program.
Nuclear Warhead Stockpile Reliability
So Xu Zhilei could be viewed as the father of China's second generation of nuclear warheads. However, since finalization of the miniaturized design, he also has been cited as a key player in ensuring the reliability of China’s existing stockpile of nuclear warheads. Authoritative writings indicate that he and the China Academy of Engineering Physics (CAEP) have supported a “certain base” of the Second Artillery to upgrade its storage, inspection, and transportation support systems for second generation warheads. Assisting Xu in the stockpile stewardship program included Peng Xianjue (彭先觉), Tang Xisheng (唐西生), and Liu Senlin (刘森林) from the China Institute of Atomic Energy (CIAE).
Reliability and safety of nuclear warheads have become sensitive issues in Chinese politics. Veterans from four units associated with testing, storage, and maintenance of nuclear warheads in the 1960s and 1970s have submitted legal claims to the Chongqing city government related to radiation-linked health problems. The specific warhead storage units were all under the former Commission of Science, Technology, and Industry for National Defense (COSTIND) 22 Base, which was an outgrowth of a security regiment known as the 8322 Unit. The warhead storage, transportation, and maintenance function was resubordinated to the Second Artillery in the late 1970s.
One of the 22 Base entities – the 89902 Unit – was headquartered in Shangwuzhuang’s Nabucang (纳卜藏) village, around 50 kilometers northwest of Xining, Qinghai province. While it's unclear what role these facilities play today, the old 89002 unit administrative compound can still be seen on Google Earth. Unverified references indicate the current presence of regimental-level support elements subordinate to the 56 Base. Elements that appear to be linked with the Nabucang administrative facility can be seen along the roads stretching out from the compound and into some pretty desolate territory.
Stockpile stewardship programs and technologies have become increasingly important in the wake of China’s signing of the Comprehensive Test Ban Treaty (CTBT) in 1996. However, legislative bodies in both China and the United States have yet to ratify the CTBT. While maintaining a moratorium on nuclear tests, Beijing authorities have asserted the need to continue to evaluate the safety and reliability of its nuclear weapons. Further detail on the Second Artillery’s nuclear warhead storage and handling system can wait for another time. But as a starter, it’s good to know that Xu Zhilei not only led the design and development effort for China’s second generation of nuclear warheads, but also has been a leading figure in ensuring the safety of China's existing warhead inventory.
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1 comment:
Seems from the information given to be more of a systems and integration guy rather than a physics package guy, or by analogy, more Sandia than Los Alamos. IMHO the "father of the 2nd(3rd? our definitions are a little fuzzy here)should be Dr. Hu Side.
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