The Fireflies aerobatic team from the United Kingdom performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

An aerobatic team from France performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

Two F-16 fighter jets of the Belgian Air Force accompany a vintage "Spitfire", a famous fighter in the WW II, during an aerobatic show at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

The Royal Jordanian Falcons aerobatic team performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

The Patrouille Suisse aerobatic team of Swiss Air Force performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

A helicopter of O'Brien's Flying Circus from the United Kingdom performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

A CV-22 Osprey aircraft of the United States Air Force performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

The Royal Jordanian Falcons aerobatic team performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

A helicopter Agusta A-109 of the Belgian Air Force performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

The Wings of Storm aerobatic team of the Croatian Air Force performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)

An aerobatic team from the United Kingdom performs at the International Sanicole Airshow in Hechtel, Belgium, Sept. 15, 2019. (Xinhua/Wang Xiaojun)