Futaba BLS571SV Low Profile Brushless High Voltage Servo  [BLS571SV]

Futaba BLS571SV - Brushless S.Bus2 Programmable Digital High Voltage Low Profile Car Servo
Price:
CAD$162.18
Brand:
Futaba
Model:
BLS571SV
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Futaba BLS571SV Servo for Accurate Steering and Robust Torque

The Futaba BLS571SV is a compact brushless servo built for RC car applications where precise steering and reliable power delivery matter. Its low profile form fits tight chassis bays while delivering the torque needed for demanding driving lines.

Programmable Control and Fast Response

This unit includes S.Bus2 programmable features so hobbyists can adjust endpoints, speed and response to suit different tracks or driving styles. Performance figures include 0.10 sec/60 degrees at 6.0V and 0.08 sec/60 degrees at 7.4V, with torque ratings of 130.6 oz-in (9.4 kg-cm) at 6.0V and 152.8 oz-in (11.0 kg-cm) at 7.4V for quick, precise inputs.

Specifications

  • Speed @ 6.0V: 0.10 sec/60°
  • Speed @ 7.4V: 0.08 sec/60°
  • Torque @ 6.0V: 130.6 oz-in (9.4 kg-cm)
  • Torque @ 7.4V: 152.8 oz-in (11.0 kg-cm)
  • Dimensions: 40.5x20x25.4mm
  • Weight: 41g
  • Rated Voltage: DC 6.0V-7.4V
  • Operating Voltage: 4.0V-8.4V

For club racers and serious hobbyists upgrading their steering setup, the Futaba BLS571SV balances speed, torque and programmable control to improve lap consistency and handling feel.

How do I connect the Futaba BLS571SV to S.Bus2 on my receiver?

Plug the servo into an S.Bus2 compatible port on your Futaba receiver and use the transmitter menu to assign channels. Refer to your receiver manual for S.Bus2 wiring and channel mapping.

What battery voltage works best with this servo?

The BLS571SV is rated for DC 6.0V to 7.4V and operates between 4.0V and 8.4V. For competitive steering response, run it on a stable 2S LiPo system or regulated high-voltage supply within the rated range.

Any tips to keep the servo cool during long runs?

Ensure good airflow in the chassis, avoid binding in linkages and check gear mesh. If you run hot conditions, add ventilation or relocate the servo away from heat sources to preserve longevity.

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