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Blue Bird BLS-43A
Standard

Blue Bird BLS-43A

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Blue Bird
Product Number (add)
Category Hobby
Performance
Torque
8.4V 690.33 oz-in
7.4V 608.38 oz-in
6.0V 493.10 oz-in
Speed
8.4V 0.10 sec/60°
7.4V 0.11 sec/60°
6.0V 0.13 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 2.77 oz
Dimensions L 1.59 in
W 0.79 in
H 1.54 in
Case Material (add)
Drivetrain
Motor Type Brushless
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position 1500 µs
Dead Band 1 µs
Refresh Rate 333 Hz
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.5–8.5 V
Power Source 2S Li-Po / 2S Li-Fe
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
Wire Length (add)
Origin
Country of Origin Taiwan

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.

Performance Analysis

Shaft Power 7.01–12.76 W
Torque Density6.2815 oz-in/g
Torque-to-Volume Ratio256.07 oz-in/in³
Power Density6.629 W/in³
More power-dense than 89% of the 1643 Digital Standard servos in the database
Speed-to-Weight0.09799 (1/sec·g)
Speed-Torque Trade-off64.11
Voltage Range Width4.0 V
Wider voltage range than 94% of the 1268 Digital Standard servos in the database

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