(2) Leithen Francis, China's AC313 helicopter has first flight and secures
launch customer. Flightglobal, Mar. 23, 2010.
http://www.flightglobal.com/articles/2010/03/23/339673/pictures-chinas-ac313-helicopter-has-first-flight-and-secures-launch-customer.html
("The Pratt & Whitney Canada PT6B-67A-powered aircraft is the largest
helicopter that China has developed to date")
(3) China Goes Solo. Strategy Page, Mar. 24, 2010.
http://www.strategypage.com/htmw/htairmo/articles/20100324.aspx
※ 修改:.choi 于 Apr 20 21:42:52 修改本文.[FROM: 128.197.0.0]