Futaba BLS177SV S.Bus2 HV Ultra Torq Brushless Programmable Full Metal Case Servo
[F-BLS177SV]

The Futaba BLS177SV is a S.Bus2 system compatible high voltage brushless servo that features a metal outer case. It is ultra high torque (up to 37kgf·cm), programmable and has built-in metal gears. This servo can be used with Futaba 18MZ/14SG servo program function.

Programmable S.Bus2 brushless high voltage servo for direct operating with 2S LiPo battery.

About Futaba S.Bus2:
Different from conventional radio control systems the Futaba S.Bus System uses data communication to transmit control signals from a receiver to a servo, gyro, or other S.Bus compatible device. This data includes commands such as "move the channel 3 servo to 15 degrees, move the channel 5 servo to 30 degrees" to multiple devices. The S.Bus devices execute only those commands for their own set channel. For this reason, it can be used by connecting multiple servos to the same signal line. 

With the S.Bus2 system, telemetry sensors can be used for Futaba telemetry capable transmitters and receivers. Data and alerts can be directly available on radios such as the Futaba 14SG and 18MZ.

The allocation of the servos can be made in 3 manners:

• With a S.BUS receiver,
• with the S.BUS channel programmer SBC-1 (Item no. RF1696),
• with the USB adapter CIU-2 (Item no. RF1405) and the PC link software,
• at the S.BUS port of FASSTest transmitters e. g. the T18MZ (Item no. RF8073) or T14SG (Item no. RF8075).

This functions are programmable

• S.BUS channel allocating
• servo reversion
• servo type, normal/retractable landing gear
• soft start-up, on/off
• mode selection if signal failure, hold or free
• servo position (servo tester)
• servo middle +/- 300µs (approx. 30°)
• servo speed, 0.39...9 seconds per 45°
• start-up force
• attenuation
• holding force
• ID memory

• Speed: 0.11sec/60°(7.4V)
  0.12sec/60°(6.6V)
• Torque: 37.0kgf·cm(7.4V)
  34.0kgf·cm(6.6V)
• Size: 40.5x21.0x38.4mm
• Weight: 79g
• Power Supply: 4.8 - 7.4V (Disabled Dry cells)

Package Included:
HV BLS177SV UHT S.Bus2 Servo with Instructions and Mounting Hardware
0.83" (21mm) diameter Round Horn
1.8"  (45mm) diameter Round Horn
1.52" (38.7mm) four point Horn
1.2"  (31.5mm) six point Horn