Futaba BLS274SV Programmable Digital Tail Servo [BLS274SV]

Futaba BLS274SV - S.Bus2 Programmable Tail Servo Servo (51g/0.05sec/5kgcm)

Price:

NZD$217.95

Brand:

Futaba

Model:

BLS274SV

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R/C Models - System - Servo - Standard Servos

Clean Tail Precision from the Futaba BLS274SV

The Futaba BLS274SV delivers precise tail movement and fine tuning via its S.Bus2 interface. Its programmable options let pilots set travel, centering and response to suit different models and flying techniques.

Notable Features for Accurate Tail Work

Advanced Modulation: Digital modulation provides reliable signal interpretation for steady control action.
Powerful Torque: Provides up to 70 oz-in (5.04 kg-cm) at 7.4V, giving firm authority for tail corrections.
Rapid Speed: Achieves a swift response time of 0.05 sec/60° at 7.4V, helping with fast stick inputs.
Durable Design: Fitted with dual bearings and a brushless motor to reduce friction and improve longevity.
Compact Build: Weighs 53g and measures 40x20x37 mm, making installation into cramped tail bays straightforward.

Specifications

Torque: 6.0V: 56 oz-in (4.03 kg-cm), 6.6V: 61 oz-in (4.39 kg-cm), 7.4V: 70 oz-in (5.04 kg-cm)
Speed: 6.0V: 0.06 sec/60°, 6.6V: 0.06 sec/60°, 7.4V: 0.05 sec/60°
Weight: 53g
Dimensions: 40x20x37 mm
Motor Type: Brushless
Gear Type: Plastic
Rotation/Support: Dual Bearings

For modellers wanting precise, adjustable tail control, the Futaba BLS274SV is a compact, programmable option that fits most small to medium setups.

What power supply should I use with this servo?

Use a 6.0V to 7.4V supply as specified. Higher voltage gives quicker response and more torque within that range.

How is the BLS274SV mounted in tight tail spaces?

Its 40x20x37 mm footprint and 53g weight make it suitable for compact mounts; check horn alignment and use shims if needed to achieve correct linkage geometry.

Can I use it on fixed wing rudders as well?

Yes, the torque and responsiveness are appropriate for many rudder setups on smaller fixed wing models, assuming control surfaces are within the servo's capacity.

Does the servo require special maintenance?

Routine checks of linkages and mounting screws plus keeping the gears free of grit will keep the BLS274SV performing reliably.

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