http://www.tudou.com/programs/view/Qj5LjW5M534/
Web of Secrecy YF 23 Black Widow II Declassified tells the story of the YF 23 fighter jet that was conceived, designed and built during the Cold War when the two superpowers were embroiled in an invisible conflict of arms escalation and air superiority. 作者: 游從稜 時間: 2012-3-11 00:30
