It is also the first time that four J-20 jets are taking part in flight maneuvers simultaneously in an air show. Previously, four J-20s have flown together during another major air show in China, but while two carried out maneuvers, the other two only did a flyover.

Another major attraction on the first day of the air show was the aerial combat maneuvers by the J-10S and J-11S twin-seat fighter jets. Spectators braved the scorching sun for hours to witness the pilots' dogfight performance.

The Air Force has sent its aerobatic teams to perform stunts during the event. Also on Wednesday, its paratroopers showed off their skills to visitors.