Comac plans to use carbon-fiber composite for the center wingbox of its 156-seat C919 narrowbody airliner but stick to aluminum for the outer wing to limit technical risk. The manufacturer aims to develop a completely composite wing for later versions of the aircraft, says an industry source closely involved in the effort. The company’s other project, the ARJ21, is suffering more serious delays. Financial controller Tian Min says the ARJ21 is now due to enter service at the end of ...


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