Servo Specs, Reviews, & Comparison Tool
Blue Arrow D03011 - Digital Ultra-Micro Precision 3.3V Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Digital |
| Torque: |
3.3V: 3.47 oz-in (0.25 kg-cm) 4.2V: 4.17 oz-in (0.30 kg-cm) |
| Speed: |
3.3V: 0.11 sec/60° 4.2V: 0.08 sec/60° |
| Weight: | 0.11 oz (3.2 g) |
| Dimensions: |
Length:0.77 in (19.6 mm) Width:0.33 in (8.4 mm) Height:0.86 in (21.8 mm) |
| Motor Type: | Coreless |
| Gear Type: | Plastic |
| Rotation/Support: | Bushing |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | JR |
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Notes
- The discontinued Blue Arrow D03011 is a specialized digital micro servo engineered with a clear focus on speed and responsiveness. Within the highly competitive 3-gram class, this servo distinguishes itself as the choice for applications where lightning-fast reactions are the most critical performance metric. Intended for use with a one-cell 3.7V Li battery, it is exceptionally well-suited for the tail rotor control on micro-class helicopters. A helicopter's tail must constantly make tiny, high-speed adjustments to counteract the torque of the main rotor blades. The D03011's rapid transit speed allows the gyro to command these corrections almost instantaneously, resulting in a locked-in, stable tail that resists wagging, even during aggressive pitch changes and pirouettes. It's also a favorite for the ailerons on small, agile 3D "shock flyers" where an explosive roll rate is a desired characteristic.
- The defining feel of the D03011 is its crispness. Pilots report an immediate, almost telepathic connection to their control surfaces, with no perceptible lag between stick input and aircraft response. This is a direct result of its high-speed motor and efficient digital controller, which work in harmony to prioritize velocity. This allows pilots to fly more aggressively and with greater confidence, knowing the servo can keep up with their commands.
- Roboticists and mechatronics designers can leverage this exceptional speed for a variety of innovative projects. The D03011 is a perfect fit for building rapid-fire sorting mechanisms that need to divert objects at high speed. It would also be an excellent actuator for the defensive or offensive mechanisms on a small "ant-weight" combat robot, where the speed of a flipper or hammer can determine the outcome of a match. Any small-scale robotics project that requires swift, repeatable movements would benefit from the specialized, velocity-focused performance of the D03011.
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