Ren Xinmin

Ren Xinmin (; December 5, 1915 – February 12, 2017) was a Chinese rocket scientist. He was a specialist in astronautics and liquid rocket engine technology. He worked at the University at Buffalo.
Early life.
Ren was born in Ningguo, China. He studied at Southeast University and at the University of Michigan. 
Career.
Ren was the technical director of the Long March 1 rocket. It was used for the successful launch of China's first satellite, and chief designer of Chinese store able propellant rocket engine. He was also the chief designer for Long March 3 launch vehicle, Fengyun, and SJ (Shijian) series satellites.
Ren was elected Member of the Chinese Academy of Sciences in 1980.
Ren, Huang Weilu, Tu Shou'e and Liang Shoupan were bracketed together as "four venerable pioneers of astronautics (航天四老)" in China. They were granted the "Two Bombs and One Satellite Merit Medal" in 1999.
Death.
Ren died on February 12, 2017 in Beijing, aged 101.