Wltoys XK AS350 K123 6CH 3D 6G Brushless Motor RC Helicopter BNF Aircraft Drone. YXZNRC UH60 Black Hawk 6CH Gyro 2.4G 6-axis 3D Flybarless 1/47 RC Helicopter. NACA 8-H-12 airfoil flat convex propeller,provide greater lift at low speeds, improving the takeoff and landing performance of the aircraft.
