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Blue Bird BMS-303DD - Digital Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Analog |
| Torque: |
4.8V: 11.00 oz-in (0.79 kg-cm) 6.0V: 14.00 oz-in (1.01 kg-cm) |
| Speed: |
4.8V: 0.11 sec/60° 6.0V: 0.09 sec/60° |
| Weight: | 0.13 oz (3.7 g) |
| Dimensions: |
Length:0.75 in (19.1 mm) Width:0.29 in (7.4 mm) Height:0.61 in (15.5 mm) |
| Motor Type: | Coreless |
| Gear Type: | (add) |
| Rotation/Support: | (add) |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | (add) |
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Notes
- The discontinued Blue Bird BMS-303DD introduces a significant technological advancement to the pico servo class by incorporating a "Direct Drive" (DD) system and a digital controller. This configuration, often featuring a coreless motor, offers a dramatic improvement in performance over standard analog servos. It is aimed at competitive indoor pilots and builders of high-performance micro models who demand the utmost in speed and precision. The coreless motor design allows for much faster acceleration and direction changes, resulting in a servo that feels incredibly responsive and immediate. The digital controller provides superior holding power and dead-on centering, which is critical for executing precise F3P aerobatic patterns or for maintaining stable control of a fast-moving micro model.
- The defining characteristic of the BMS-303DD is its exceptionally smooth and precise operation. The absence of a traditional cored motor's "cogging" effect results in a fluid, high-fidelity response that allows pilots to feel a more direct connection to their control surfaces. This level of finesse is invaluable for indoor pattern flying, where smooth, graceful maneuvers are key to a high score. It elevates the performance of any micro aircraft, transforming its handling from merely adequate to truly high-performance.
- For roboticists working on sophisticated micro-systems, the BMS-303DD is a specialized and powerful tool. Its speed and precision make it ideal for high-speed, low-mass applications, such as a miniature sorting mechanism or a rapid-response sensor-pointing system. It would also be an excellent choice for the control system of a bio-inspired robotic insect or bird, where fast, smooth, and precise wing or leg movements are required to achieve stable locomotion. It's the actuator of choice when pico-class projects demand elite-level speed and accuracy.
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