URUMCHI, Jan. 30 --Seven J-10 aircraft attached to the Bayi Aerobatic Team of the Chinese People's Liberation Army (PLA) Air Force took off at an airfield in Northwest China on the morning of January 29, heading to Riyadh, capital of Saudi Arabia, to perform at the 2nd World Defense Show scheduled to be held therefrom February4-8. After receiving aerial refueling by a YU-20, the aircraft have landed on Riyadh in the afternoon of the same day. This will be the team's 10th performance abroad.