Rebranding for Competitive Edge Intriguingly, Comac, China’s state-owned aircraft manufacturer, has decided to rebrand its ARJ21 regional jet. Now known as the C909, this move aims to bolster its position against aviation giants Airbus and Boeing. Find more information here. The Comac C909 finds itself in direct competition with the Brazilian-made Embraer E2 series. ButComparison of China’s C909 Airliner with Rival Models