Futaba BLS173SV Programmable HV Mini Servo  [BLS173SV]

Futaba BLS173SV - HV S.Bus2 Programmable Mini Air Servo
Price:
NZD$250.00
Brand:
Futaba
Model:
BLS173SV
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Precision Mini Servo from Futaba BLS173SV

The Futaba BLS173SV is a programmable mini air servo built for accuracy and endurance. It combines a brushless drive with metal gears to reduce wear while keeping movement smooth for trimming and flight control tasks.

Speed, Torque and Stable Operation

Designed to perform across voltage options, this servo produces strong torque and fast transit times. At 7.4V it delivers 106 oz-in (7.63 kg-cm) and achieves 0.10 sec/60 degrees, giving responsive control. The dual-bearing output supports consistent alignment under load.

Specifications

  • Modulation: Digital
  • Torque: 6.0V: 86 oz-in (6.19 kg-cm), 6.6V: 94 oz-in (6.77 kg-cm), 7.4V: 106 oz-in (7.63 kg-cm)
  • Speed: 6.0V: 0.12 sec/60°, 6.6V: 0.11 sec/60°, 7.4V: 0.10 sec/60°
  • Weight: 0.99 oz (28.0 g)
  • Dimensions: Length: 1.30 in (33.0 mm), Width: 0.59 in (15.0 mm), Height: 1.06 in (27.0 mm)
  • Motor Type: Brushless
  • Gear Type: Metal
  • Rotation/Support: Dual Bearings

The BLS173SV suits pilots who need a small servo that still delivers precise, repeatable motion for control surfaces and on-board trims.

Is the BLS173SV compatible with my S.Bus2 receiver

Yes, it works with S.Bus2 capable receivers. Ensure your receiver firmware supports S.Bus2 features and follow Futaba guidance for channel mapping.

How durable are the gears under aerobatic use

Metal gears give good resistance to wear during aggressive flying. Regular inspection and correct servo mounting will help prevent gear or shaft stress over time.

What mounting options fit this mini servo

It follows a compact form factor suitable for standard mini servo trays. Use light-weight linkages and the correct horn size to optimise throw and reduce load.

Can I use this on non-aircraft models

Although intended for aircraft, the BLS173SV can be used in other models that need a small, high-voltage servo with fine control, such as lightweight scale projects.

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