RC Helicopter Design for Sale br 3D Printing ApprovedReady () br br Recommended battery: 2x 800mAh 2S 7.4V 20C Li-Po, Controller: ~12A (according to motor), Maximum battery diameter for main rotor: ~1 332 in, Main rotor: ~7-9 in diameter, Maximum Diameter for rear motor(s): 0.45 in, Maximum diameter for tail rotor(s): 2.25 in, Flying weight ~450 grams (including motors, rotors and all accessories), Volume: ~8 inch cubed, Weight (Plastic, without installations, removal of support material) ~150 grams, COM (inches): (x, y, z) (0, 0.33, -0.13) br br Contact via this account, mail to fadoobaba@live.