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Futaba S-U301 Standard S.Bus2 servo — 3.9kg torque at 7.4V, compatible with aeroplanes, helicopters, and cars.
- Standard Digital and S.Bus2 Capable Servo.
- 3.9 kg-cm torque at 7.4V.
- Compatible with aeroplanes, helicopters, and cars.
- Resin gearing.
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Overview
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.
Features
- Compatible with a wide range of genres such as aeroplanes, helicopters, and cars.
- Resin Gearing.
- High voltage 7.9KG S.Bus servo.
In the box
- 1x S-U301 S-Bus2 Standard 3.9kg 7.4V Servo
- 1x Accessory Pack
Specifications
| 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 |
| Weight | 39g (1.38 oz) |
| Gear Type | Resin |
| 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 |
Servo

| Size | Standard |
|---|---|
| Gear Material | Plastic |
| Servo Spline Count | 25Tooth |
| Waterproof Casing | No |
| Case Material | Plastic |
| Height (A) | 36.1mm |
| Body Length (B) | 40.5mm |
| Bottom to Under Mount (C) | 26.6mm |
| Top to Under Mount (D) | 9.5mm |
| Length (E) | 54.3mm |
| Width (F) | 20.6mm |
| Drive Motor Type | Brushed |
| 6V Torque kg/cm | 3.9 |
| 6V Sec/60 Degrees | 0.18 |
| Signal Type | Digital |
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