YXZNRC F11 AH-64D Apache RC Helicopter 6-Axis Gyro 2.4G 6CH Brushless Flybarless. YXZNRC EC135 RC Helicopter 6-axis Gyro 2.4G 6CH 1:36 Flybarless Brushless Motor. RC ERA Bell-206 RC Helicopter 1:33 C138 6CH 6-axis Gyro Optical Flow Positioning.
eBay