29 December 2019
As a milestone project upgrading China's launch vehicles, the development of the CZ-5 covered the most diversified engineering technologies and overcame the most difficult problems in the country's carrier rocket history, completing a massive scale of tasks along the way. The CZ-5 rocket, uses more than 200 key technologies, it is more complex than any previous Long March rocket, and its design workload was more than 3.5 times that of previous projects. China also built the largest simulation laboratory in Asia for its tests.
Advanced digital technologies were applied in the design, analysis and tests, more than 10,000 space engineers participated in the design, research and development of the CZ-5, which lasted for more than 10 years. Friday's launch marks the end of a fruitful year for China's aerospace sector.