China will show off its homegrown civil and military aviation technology at the country's biggest air show in November, the mayor of host city Zhuhai said on Tuesday, though there was no confirmation that would include the C919 narrowbody jet.

The C919, made by Commercial Aircraft Corp of China and designed to rival single-aisle jets made by Airbus and Boeing, is close to certification but has never been displayed or flown at previous editions of Airshow China.

The normally biennial show will be held from November 8 to 13, with 740 businesses expected to take part offline and online, organisers said at a media conference in Beijing, up from 700 in 2021, when it held a show meant to take place in 2020 that was delayed because of the pandemic.

This year's show will include participants from 43 countries and regions, up from 40 a year ago, according to the organisers. China requires international travellers to quarantine for a week on arrival.

On the military side, its first large-scale stealth long-endurance drone, Rainbow-7, will be among the items on display.

On the civil side, foreign companies including Airbus, Boeing and General Electric will attend alongside Chinese companies, Zhuhai mayor Huang Zhihao told reporters.

Western suppliers are behind some of the key technology in the C919, including the avionics and engines.

Two C919 jets arrived in Beijing on September 13, in a move widely viewed as preparation for certification by the aviation regulator on September 19, a symbolic date given the model number.

But that did not happen and the two jets remain parked in Beijing, according to flight tracking websites. (Reuters)