Futaba brand Futaba BLS252 F3C brushless Heli Servo. FEATURES: Designed for F3C competition Standard size Equipped with metal gears and two ball bearings 30% faster response than standard digital servos and five times longer lasting than servos with brushed motors Same power consumption as brushed digital servos One year limited warranty YOU WILL RECEIVE: Futaba BLS252 brushless Heli Servo with universal connector, 0.83 (21mm) diameter round horn, 1.8 (45mm) diameter round horn, 1.2 (32mm) 6-point horn, 1.5 (39mm) 4-point horn and mounting hardware REQUIREMENTS: Installing in heli, connecting linkage and connecting to receiver SPECIFICATIONS: Torque: 139 oz-in (10.0 kg/cm) @ 4.8V 175 oz-in (12.6 kg/cm) @ 6.0V Speed: 0.16 sec/60 @ 4.8V 0.13 sec/60 @ 6.0V Size: 1.6 x 0.8 x 1.5 (40 x 20 x 37mm) Weight: 2.1 oz (58g) Horn Screw Size: 3x8mm COMMENTS: For Case Set, order FUTM2803 For Gear Set, order FUTM3471 jxs 7/24/08 ir/jxs