Click to enlarge

Ultra fast 20 mm brushless digital servo, especially developed for tail rotor control of helicopters of 1-1,6 m rotor diameter. Best match for connecting the gyro for your 500 class+ helicopter!!

With robust, double ball-raced metal gears The perfect match for the GY-520 gyro. The casing centre piece is made from Aluminium and serves to cool the brushless motor. Dimensions identiacl with BLS 251, however designed for gyros with neutral point of 1520 µs.
BLS254 Servo Specifications:
Control System: +Pulse Width Control 1520usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8-6.0 Volts
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): TBC
Operating Speed (6.0V): TBC
Stall Torque (4.8V): 38Ncm
Stall Torque (6.0V): 47Ncm
Holding Power (4.8V): 95Ncm
Holding Power (4.8V): 117Ncm
Operating Angle: 45 Deg. one side pulse traveling 400usec
360 Modifiable: Yes
Direction: Counter Clockwise/Pulse Traveling 1520-1900usec
Motor Type: Brushless Motor
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearings
Gear Type: All Metal Gears
Connector Wire Length: TBC
Dimensions: (40 x 20 x 36.8mm)
Weight: 2.1oz. (61g)

SPECS:    Torque: 53 oz-in (3.8kg/cm) @ 4.8V
          Speed: 0.06 sec/60° @ 4.8V
          Size: 1.60 x 0.80 x 1.50" (40 x 20 x 36.8mm)
          Weight: 1.80 oz (51g)


Package Included:
1 x Futaba BLS254 Brushless Servo


Futaba recommends Futaba BLS254 servo to use for Tail servo with Futaba GY401/GY520/GY611 on 500/600 class EP helicopters or 60/90 class GP helicopters.