Futaba Standard S-U301 S-Bus2 3.9kg 7.4V Servo
Servos are powered by the ESC's output to the receiver. If you're using a higher-strength servo than the ESC can support (usually greater than 20kg), you may experience 'brown-outs' where the radio signal can be interrupted and cause erratic driving. This can be helped by plugging a Glitch Buster into the receiver smoothing the current delivery. However, in some cases, you may need to install an external BEC.
Standard Digital and S.Bus2 Capable Servo with Accessory Pack.
- Compatible with a wide range of genres such as aeroplanes, helicopters, and cars.
- Resin Gearing.
- High voltage 7.9KG S.Bus servo.
- Torque(6.6V): 3.5 kg-cm (48.6 oz/in)
- Torque(7.4V): 3.9 kg-cm (54.2 oz/in)
- Speed: 0.18 sec (6.0V) ? 0.16 sec (7.4V)
- Operating Voltage?6.0 ~ 8.4V DC Volts
- Weight: 39 g (1.38 oz)
- Gear Type?Resin

Servo Dimensions
- Total Height (A) = 36.1mm
- Body Width (B) = 40.5mm
- Below Mount (C) = 26.6mm
- Above Mount (D) = 9.5mm
- Total Length (E) = 54.3mm
- Total Width (F) = 20.6mm
In this video, Hamish gives a step-by-step guide on installing a Servo and how to avoid stripping your servo gears.
Description | QTY |
---|---|
S-U301 S-Bus2 Standard 3.9kg 7.4V Servo | 1 |
Accessory Pack | 1 |
Servo | |
---|---|
Size: | Standard |
6V Torque kg/cm: | 3.9 |
6V Sec/60 Degrees: | 0.18 |
Servo Spline Count: | 25Tooth |
Gear Material: | Plastic |
Waterproof Casing: | No |
Signal Type: | Digital |
Drive Motor Type: | 3-Pole |
Case Material: | Plastic |
Total Height: | 36.1mm |
Body Length: | 40.5mm |
Bottom to Under Mount: | 26.6mm |
Top to Under Mount: | 9.5mm |
Total Length: | 54.3mm |
Total Width: | 20.6mm |

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