TIANJIN, Sep. 13 -- As the 6th China Helicopter Exposition is approaching, "Fenglei" (Windstorm), a helicopter aerobatic team of the Chinese PLA Army, conducted a multi-subject warm-up training in preparation for the performance at the coming expo. Multiple types of choppers including Z-10 and Z-20 took part in the training, performing single-chopper and formation aerobatic flight maneuvers.
