The L15-05 trainer plane, developed by the Hongdu Aviation Industry Group takes off at Qingyunpu airport in Nanchang, east China's Jiangxi Province, June 8, 2009. The trainer plane had a successul maiden flight on Monday. (Xinhua/Song Zhenping)

The L15-05 trainer plane, developed by the Hongdu Aviation Industry Group takes off at Qingyunpu airport in Nanchang, east China's Jiangxi Province, June 8, 2009. (Xinhua/Song Zhenping)

Pilots Yang Yao (R front) and Guo Yanbo (L front) of the L15-05 trainer plane, developed by the Hongdu Aviation Industry Group, walks out of the plane after it flew back to Qingyunpu airport in Nanchang, east China's Jiangxi Province, June 8, 2009. (Xinhua/Song Zhenping)