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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | FT815BL |
| Category | Hobby |
| Performance | |
| Torque |
7.4V208.35 oz-in15.00 kg-cm1.5 N-m |
| Speed |
7.4V0.10 sec/60°600.0 deg/s100.0 RPM |
| Physical | |
| Weight | 2.96 oz84.0 gAverage |
| Dimensions |
L 2.144 in W 0.787 in H 1.533 in L 54.5 mm W 20.0 mm H 38.9 mm |
| Case Material | Metal |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Water Rating | Water Resistant |
| Origin | |
| Country of Origin | China |
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
| Weight | Average Lighter than 46% of 145 Digital Large servos |
Performance Analysis
| Shaft Power | 3.85 W |
| Power Density | 1.489 W/in³ More power-dense than 54% of 112 Digital Large servos |
| Torque Density | 2.4804 oz-in/g |
| Torque-to-Volume Ratio | 80.55 oz-in/in³ |
| Speed-to-Weight | 0.11905 (1/sec·g) |
| Speed-Torque Trade-off | 20.84 |
| Voltage Range Width | 1.4 V Wider voltage range than 11% of 124 Digital Large servos |
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