Futaba BLS172HV

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-22

Identity
Brand
Product Number	FUTM0732
Category	Hobby
Discontinued	Yes
Performance
Torque	7.4V 514.00 oz-in 6.0V 472.20 oz-in Above Average
Speed	7.4V 0.11 sec/60° 6.0V 0.12 sec/60° Top 10%
Physical
Weight	2.61 ozAverage
Dimensions	L 1.614 in W 0.827 in H 1.496 in
Drivetrain
Motor Type	Brushless
Gears	Metal
Rotation/Support	4
Control & Signal
Modulation	Digital
Neutral Position	1520 µs
Electrical & Environment
Operating Voltage	6–7.4 V
Connectivity
Connector	Futaba J

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Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 83% of 25 Digital Large servos at 6.0V
Speed	Top 10% Faster than 96% of 24 Digital Large servos at 6.0V
Weight	Average Lighter than 63% of 145 Digital Large servos

Performance Analysis

Shaft Power	7.28–8.64 W
Power Density	4.327 W/in³ More power-dense than 95% of 112 Digital Large servos
Torque Density	6.3811 oz-in/g 2nd-highest torque density of 24 Digital Large servos
Torque-to-Volume Ratio	236.48 oz-in/in³ 2nd-highest torque-to-volume ratio of 25 Digital Large servos
Speed-to-Weight	0.11261 (1/sec·g) 3rd-highest speed-to-weight of 23 Digital Large servos
Speed-Torque Trade-off	56.66 Better balanced than 57% of 22 Digital Large servos
Torque Gain per Volt	6.32%/V More voltage-responsive (torque) than 3% of 74 Futaba servos
Speed Gain per Volt	6.50%/V More voltage-responsive (speed) than 4% of 75 Futaba servos
Voltage Range Width	1.4 V Wider voltage range than 15% of 124 Digital Large servos