Servo Specs, Reviews, & Comparison Tool
Blue Bird BMS-380 - Micro Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Digital |
| Torque: |
4.8V: 34.70 oz-in (2.50 kg-cm) 6.0V: 41.00 oz-in (2.95 kg-cm) |
| Speed: |
4.8V: 0.13 sec/60° 6.0V: 0.11 sec/60° |
| Weight: | 0.49 oz (13.9 g) |
| Dimensions: |
Length:1.20 in (30.5 mm) Width:0.50 in (12.7 mm) Height:1.00 in (25.4 mm) |
| Motor Type: | (add) |
| Gear Type: | Metal |
| Rotation/Support: | Dual Bearings |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | J |
*We may earn a commission from your purchase.
Notes
- The discontinued Blue Bird BMS-380 is a highly respected sub-micro analog servo that has earned a reputation for its excellent power and durability in a compact package. It is slightly larger and more powerful than the classic 9-gram servos, making it a popular upgrade for pilots looking for more control authority without a significant weight penalty. It is an excellent choice for larger park flyers, smaller glow-powered models, and as a robust choice for the flight controls on 450-class helicopters. The BMS-380 typically features a strong carbonite gear train that offers a good balance between durability and low weight, making it a dependable performer for spirited sport flying.
- The BMS-380 is known in the modeling community as a "strong for its size" servo. Pilots who have found their 9-gram servos to be a bit lacking in power or prone to flexing under load often turn to the BMS-380 as a solution. It provides a more solid and connected feel to the control surfaces, which is especially noticeable on faster or larger models within its intended application range. It is a trusted workhorse, valued for its ability to provide reliable, powerful performance at a very reasonable price point.
- For roboticists, the BMS-380 offers a very useful step up in power from the standard 9g servo class. This extra torque can enable a variety of more ambitious projects. It's a great choice for the primary lifting joints of a small robotic arm, for the steering mechanism on a heavier rover (up to a few pounds), or for the leg actuators on a walking robot that needs to carry a larger battery or more complex sensor package. It’s the actuator to choose when a project's mechanical needs start to exceed the capabilities of the ubiquitous 9g servo.
Similar Servos
Reviews of Blue Bird BMS-380 (0)
Submit a review of Blue Bird BMS-380