The Blue Bird BMS-125WV Plus + is the highest torque servo in the new Blue Bird BMS-125WV/126WV/127WV range of 11g servos. At 8.4V the BMS-125WV's torque is a massive 6.2 kg.cm. The speed is slightly compromised but is still 0.09 seconds per 60° of movement. It is suitable for all control surfaces on ligher F5J models and most gliders up to 4 m wingspan. At 10 mm thick it is suitable for mounting in small fuselages and thin wings and tails. Blue Bird BMS-125WV Specifications Body dimensions 23.2 mm wide x 10.0 mm thick x 23.0 mm high 0.91" wide x 0.39" thick x 0.91" high Max dimensions 32.0 mm wide x 10.0 mm thick x 25.0 mm high 1.26" wide x 0.39" thick x 0.98" high Stall torque (3.7V) 3.6 Kg.cm 37 oz.in Stall torque (6V) 5.5 Kg.cm 60 oz.in Stall torque (8.4V) 6.6 Kg.cm 86 oz.in Weight 11.3 g 0.40 oz Lead length 16 cm 6.3 in Operating speed (3.7V) 0.2 sec/60° Operating speed (6V) 0.13 sec/60° Operating speed (8.4V) 0.09 sec/60° Operating voltage 3.5V to 8.4V Operating temperature 0 to 40 °C Bearings Plain Gear material Metal alloy Case material Nylon Motor type Coreless DC motor Working frequency 250 Hz Dead band/resolution 2 µs Pulse width for ± 60º (L) 900 µs - (0°) 1520 µs- (R) 2100 µs Digital Yes Programmable No Position feedback Potentiometer Supplied accessories 2 plastic output arms, 1 arm retaining screw, 4 mounting screws, Blue Bird sticker Optional accessories Ply Frame for Blue Bird BMS-125WV Specifications Specifications Torque At 3.7V 3.6 kg-cm / 50.0 oz-in Torque At 6.0V 5.5 kg-cm / 76.4 oz-in Torque At 7.4V 6.6 kg-cm / 91.7 oz-in Torque At 8.4V 7.1 kg-cm / 98.6 oz-in Speed At 3.7V 0.20 sec / 60° Speed At 6.0V 0.13 sec / 60° Speed At 7.4V 0.10 sec / 60° Speed At 8.4V 0.09 sec / 60° Power Supply Operating Voltage Range 3.6V ~ 8.4V DC ( 1-2S HV Li-Poly / 2S Li-Fe Compatible ) Application / Suitable 3D EP Aircraft, F3K, F3P & DLG, HLG. Control Specification Control System Digital Controller 12-Bits ( 4096 Steps )Frequency：Up to 333Hz / Neutral：1500 or 1520us Dead Band Width 0.002ms ( 2us ) Frame Rate (Signal repeat rate) 3ms ( Maximum ) Rotating Direction Clockwise / When Pulse Traveling 1500 ~ 2100u second Operating Travel 90° (When 1100 ~ 1900 μ sec) Mechanical Specifications Ball Bearing Dual Gear All Metal Gears Motor Coreless Motor Horn / Gear Spline 25 Teeth Connected Cable Length 150 mm ( 5.9 in ) Connected Housing Universal Connector Physical Specifications Dimension (mm) 23.2 x 10 x 23 mm / 0.91 x 0.39 x 0.90 in Weight (gram) 11.0 ± 0.5 grams / 0.38 oz Product Picture / Dimension Sketch
