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Technical Specifications
Last Updated: 2026-10-10| Identity | |
| Brand |  |
| Product Number | SM-S3471M |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
55.50 oz-in
4.00 kg-cm
0.4 N-m
4.8V
44.40 oz-in
3.20 kg-cm
0.3 N-m
Below Average
|
| Speed |
6.0V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
4.8V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
|
| Physical | |
| Weight | 1.06 oz30.0 gBelow Average |
| Dimensions |
L 1.398 in W 0.598 in H 1.193 in L 35.5 mm W 15.2 mm H 30.3 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 60° |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Wire Length | 200 mm7.87 in |
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
| Torque | Below Average Stronger than 32% of 262 Digital Mini servos at 4.8V |
| Speed | Above Average Faster than 86% of 263 Digital Mini servos at 4.8V |
| Weight | Below Average Lighter than 27% of 466 Digital Mini servos |
Performance Analysis
| Shaft Power | 1.03–1.71 W |
| Power Density | 1.715 W/in³ More power-dense than 55% of 440 Digital Mini servos |
| Torque Density | 1.4800 oz-in/g Stronger than 13% of 258 Digital Mini servos |
| Torque-to-Volume Ratio | 44.52 oz-in/in³ Denser torque than 16% of 262 Digital Mini servos |
| Speed-to-Weight | 0.41667 (1/sec·g) Faster than 67% of 259 Digital Mini servos |
| Speed-Torque Trade-off | 3.55 Better balanced than 19% of 261 Digital Mini servos |
| Torque Gain per Volt | 20.83%/V More voltage-responsive (torque) than 76% of 232 Digital Mini servos |
| Speed Gain per Volt | 27.78%/V More voltage-responsive (speed) than 95% of 235 Digital Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 23% of 351 Digital Mini servos |
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Reviews (2)
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mhills51
September 8, 2013Application(s): Trex 500 and 500pro
Comments: I found a lot of problems people have with this and other tail servos is people setting them to the new standard for a tail 333mhz. This servo is rated at a max of 300 from the manufacturer. I had mine set on the pro to 290 and never had a issue until I had a rekit crash. It then developed a tick. I have been running one on my Airwolf for over a year and a half with a Futaba 401 without any issues. The only problem I have is no replacement gears.
Hpiz
April 15, 2012Application(s): Tail servo on a trex 500
Comments: Worked for about two flights, then locked up and refuses to operate anymore