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Blue Bird BLS-73AWB
Large

Blue Bird BLS-73AWB

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand Blue Bird
Category Hobby
Performance
Torque
8.4V 1,026.47 oz-in
7.4V 933.41 oz-in
6.0V 773.67 oz-in
Speed
8.4V 0.08 sec/60°
7.4V 0.10 sec/60°
6.0V 0.12 sec/60°
Physical
Weight 4.30 ozBelow Average
Dimensions L 1.909 in
W 0.984 in
H 1.961 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Gears Metal / Steel
Gear Spline/Teeth 25 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Pulse Cycle 2.5 ms
Neutral Position 1500 µs
Dead Band 1 µs
Refresh Rate 400 Hz
Control System PWM
Electrical & Environment
Operating Voltage 4.5–8.5 V
Power Source 2S Li-Po / 2S Li-Fe
Water Rating Waterproof
Connectivity
Connector JR (Universal) estimate
Wire Length 300 mm
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.

Class Comparison

WeightBelow Average
Lighter than 11% of 143 Digital Large servos

Performance Analysis

Shaft Power 11.92–23.72 W
Power Density6.440 W/in³
3rd-highest power density of 108 Digital Large servos
Torque Density6.3520 oz-in/g
Torque-to-Volume Ratio210.03 oz-in/in³
Speed-to-Weight0.06842 (1/sec·g)
Speed-Torque Trade-off92.84
Voltage Range Width4.0 V
Wider voltage range than 62% of 131 Digital Large servos

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