At present the “main manufacturer–supplier” model is used widely for the research of large aircraft project inland: namely the airframe components will be manufactured by different airframe suppliers and assembled by main manufacturer. In project research stage

the joint method is matching the joint butts of airframe and airfoil and fasten by bolts

the methods of matching the components after delivery in final state and finishing the final dimensions after joint are adopted

which decides whether the aircraft batch production could be finished with high quality

high efficiency and low cost

and ensure to realize the design requirements and meet airworthiness requirements.