Do you know Jian-8 was never in service ?

来源: 于 2016-08-01 10:29:16 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Jian-6 was the safest. Jian-7 was not even as reliable. But, this is the type of career you don't have a choice once you are in. The accident rate is always very high and only good people can do it.