Futaba BLS251SB S.Bus2 Programmable Helicopter Rudder Servo 60g/0.06sec/3.8kgcm/4.8v Standard Servos System
Modulation: Digital Torque: 4.8V: 53.00 oz-in (3.82 kg-cm) Speed: 4.8V: 0.06 sec/60° bodyweight: 2.12 oz (60.0 g) proportions: Length:1.58 in (40.0 mm) Width:0.79 in (20.0 mm) Height:1.46 in (37.0 mm) engine Type: Brushless Gear Type: Metal Rotation/Support: Dual Bearings