Photo taken on Dec. 1, 2010 shows the aluminum-lithium alloy fore part of the airframe of C919 jumbo jet, which is manufactured by Hongdu Aviation Industry Group, in Nanchang, capital of east China's Jiangxi Province. The C919 is China's self-developed jumbo jet, 17-meter-long, 5.6-meter-high, 3.96-meter-wide, which is designed to accomodate 156-168 passengers. (Xinhua/Zhou Ke)