Chinanews, Jan.9 - China is currently carefully and actively studying the large-plane project, Huang Qiang, secretary-general of the Commission of Science, Technology and Industry for National Defense, said on yesterday (Jan.8) afternoon.Huang made the remarks in a press conference of the annual work conference of the commission yesterday in Beijing, pointing out that there have been mounting calls from the public for an early implementation of the large plane project.Huang indicated it is estimated that within two or three Five-Year-Plan periods, the large plane would come into use.Indigenously-developed large aircraft also represents the competitive ability of a country. The large-aircraft project in China can build on the expertise and experience of the aviation industry, particularly of the ARJ21, China's advanced regional jet whose manufacture started in December 2003.