This is the 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
INCLUDES: 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
REQUIRES: Installing in heli, connecting linkage and connecting to receiver
SPECS: 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