Servo Specs, Reviews, & Comparison Tool
Blue Arrow BA-TS-8.4 - Micro Servo with S Connector
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | (add) |
| Torque: |
4.8V: 17.16 oz-in (1.24 kg-cm) 6.0V: 18.59 oz-in (1.34 kg-cm) |
| Speed: |
4.8V: 0.12 sec/60° 6.0V: 0.12 sec/60° |
| Weight: | 0.30 oz (8.4 g) |
| Dimensions: |
Length:0.88 in (22.4 mm) Width:0.44 in (11.2 mm) Height:0.87 in (22.1 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-8.4 stands at the upper echelon of the analog thin-wing servo category, delivering a formidable combination of power and speed in a sleek, wing-friendly package. This servo is the go-to choice for pilots of large, high-performance aircraft, including giant-scale sailplanes, powerful electric pattern planes, and even some smaller ducted fan (EDF) jets where it might be used for flaps or other secondary controls. It is specifically designed to handle the significant aerodynamic loads imposed on large control surfaces, especially at high speeds. Its robust motor and gear train provide the muscle needed to move these surfaces quickly and hold them firmly in place, giving the pilot crisp, authoritative control over the aircraft's attitude.
- Reliability is the cornerstone of the BA-TS-8.4’s reputation. When flying a large, fast, and expensive model, component failure is not an option. This servo has earned the trust of the modeling community by providing consistent, dependable performance under the most demanding conditions. It’s a component that pilots install with confidence, knowing it can withstand the rigors of aggressive aerobatics, high-G turns, and the cumulative stress of countless flights. It's a true workhorse, designed for serious modelers who demand uncompromising performance and durability.
- This powerful performance, housed within a slim form factor, makes the BA-TS-8.4 an intriguing option for specialized robotics projects. It is an excellent candidate for actuation systems where high torque is needed but a standard-sized servo is simply too bulky to fit. Imagine it driving the powerful leg joints of a slim, quadrupedal robot, or providing the force for a large clamping mechanism on a custom-built drone. Its unique blend of power and profile allows engineers to create more compact and potent mechanical designs.
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