Futaba BLS155 Aircraft Brushless Torque Servo  [BLS155]

Futaba BLS155 Brushless High Torque Servo
Price:
AUD$219.92
Brand:
Futaba
Model:
BLS155
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High torque brushless control from Futaba BLS155

The Futaba BLS155 brushless high torque servo is made for pilots who need dependable stick feel and long-life performance. Its brushless architecture yields faster actuation and consistent torque for demanding flight profiles.

Designed Features for Flight Control

  • High Torque: Rated at 200 oz-in at 4.8V and 250 oz-in at 6.0V to drive larger control surfaces securely.
  • Brushless Motor: Around 30% faster response and up to five times the service life versus brushed alternatives.
  • Metal Gears: Tough gear set improves longevity under repeated loading.
  • Standard Size: Measures 40 x 20 x 36.8mm to fit common servo bays without modification.
  • Efficient Power Consumption: Comparable current draw to brushed digital servos, balancing power and endurance.

Specifications

  • Torque: 200 oz-in (14.4 kg/cm) @ 4.8V, 250 oz-in (18.0 kg/cm) @ 6.0V
  • Speed: 0.19 sec/60° @ 4.8V, 0.15 sec/60° @ 6.0V
  • Size: 1.60 x 0.80 x 1.50 inches (40 x 20 x 36.8mm)
  • Weight: 2.30 oz (64g)

The Futaba BLS155 is suited to hobbyists wanting a robust, fast-acting servo that holds up in frequent flying conditions.

While primarily aimed at fixed-wing surfaces, its torque and speed make it usable in some collective or cyclic setups provided size and mounting fit the airframe.
Check gear mesh and mount security periodically, keep connectors clean, and inspect for unusual noise or play after heavy flights.
Use an appropriate regulated supply for 4.8V to 6.0V operation and ensure your receiver power setup can handle the servo load during peak demands.

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