Servo Specs, Reviews, & Comparison Tool
Blue Arrow BA-TS-4.3 - Ultra-Micro Servo with S Connector
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | (add) |
| Torque: |
4.8V: 10.01 oz-in (0.72 kg-cm) 6.0V: 11.44 oz-in (0.82 kg-cm) |
| Speed: |
4.8V: 0.12 sec/60° 6.0V: 0.12 sec/60° |
| Weight: | 0.15 oz (4.3 g) |
| Dimensions: |
Length:0.77 in (19.6 mm) Width:0.31 in (7.9 mm) Height:0.77 in (19.6 mm) |
| Motor Type: | (add) |
| Gear Type: | Plastic |
| Rotation/Support: | Bushing |
| Rotational Range: | 80° |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | S |
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Notes
- The discontinued Blue Arrow BA-TS-4.3 serves as a robust and powerful option within the specialized thin-wing servo category, bridging the gap between micro-sized actuators and larger, standard-class servos. It is engineered for modelers who require both the slim profile for wing mounting and a higher level of control authority for larger, faster, or more demanding aircraft. This makes it an ideal choice for medium-sized electric gliders, larger park flyers, and even some smaller hotliners where control surface blowback can become a concern with weaker servos. The added substance in its construction gives pilots a more connected and solid feel, ensuring that control inputs are translated directly into crisp movements of ailerons, elevators, or flaps, even under significant aerodynamic load.
- What sets the BA-TS-4.3 apart is its reputation as a reliable workhorse. Hobbyists who fly demanding styles, such as precision aerobatics or slope soaring in high winds, gravitate towards this servo for its consistent performance and resistance to developing gear slop prematurely. It instills confidence that the control surfaces will hold their position accurately, which is critical for executing smooth, graceful maneuvers and for maintaining stability at high speeds.
- This unique combination of a slim form factor and respectable power makes it a highly valuable component for robotics engineers facing specific design challenges. It is perfectly suited for applications that require a forceful actuator to be placed in a narrow or confined space. This could include the actuation of linkages within a complex robotic limb, the steering mechanism on a custom-designed rover with a narrow chassis, or even for animated displays and props where the mechanism needs to be hidden from view while still being powerful enough to move larger components.
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