China’s Bayi Aerobatic Team performs at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, to mark China’s eighth Martyrs’ Day on September 30. The PLAAF Bayi Performance Team flies through the sky, leaving behind trails of smoke, to pay tribute to national heroes. (Photos:VCG; Compiled by Dong Xiaojing)

China’s Bayi Aerobatic Team performs at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, to mark China’s eighth Martyrs’ Day on September 30. The PLAAF Bayi Performance Team flies through the sky, leaving behind trails of smoke, to pay tribute to national heroes. (Photos:VCG)

China’s Bayi Aerobatic Team performs at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, to mark China’s eighth Martyrs’ Day on September 30. The PLAAF Bayi Performance Team flies through the sky, leaving behind trails of smoke, to pay tribute to national heroes. (Photos:VCG)

China’s Bayi Aerobatic Team performs at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, to mark China’s eighth Martyrs’ Day on September 30. The PLAAF Bayi Performance Team flies through the sky, leaving behind trails of smoke, to pay tribute to national heroes. (Photos:VCG)

China’s Bayi Aerobatic Team performs at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, to mark China’s eighth Martyrs’ Day on September 30. The PLAAF Bayi Performance Team flies through the sky, leaving behind trails of smoke, to pay tribute to national heroes. (Photos:VCG)