Servo Specs, Reviews, & Comparison Tool
Blue Arrow BA-TS-2.5 - Ultra-Micro Servo with White Micro JST Connector
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | (add) |
| Torque: |
4.8V: 2.08 oz-in (0.15 kg-cm) 6.0V: 2.36 oz-in (0.17 kg-cm) |
| Speed: |
4.8V: 0.12 sec/60° 6.0V: 0.12 sec/60° |
| Weight: | 0.10 oz (2.8 g) |
| Dimensions: |
Length:0.77 in (19.6 mm) Width:0.31 in (7.9 mm) Height:0.64 in (16.3 mm) |
| Motor Type: | (add) |
| Gear Type: | Plastic |
| Rotation/Support: | Bushing |
| Rotational Range: | 80° |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | JST |
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Notes
- The discontinued Blue Arrow BA-TS-2.5 represents a pinnacle of specialization in the servo world, engineered for a singular purpose: to provide precise control with the absolute minimum of weight and size. As a 'Thin Servo' (TS), its form factor is its most defining characteristic, allowing it to be seamlessly integrated into the delicate, hollow-molded wings of high-performance discus-launch gliders (DLGs) and other competition sailplanes. In these aircraft, every gram and every millimeter of an airfoil's thickness counts. The BA-TS-2.5 allows builders to embed the actuator directly within the wing structure, driving ailerons or flaps with short, direct linkages that eliminate the slop and flex associated with longer pushrods, all while creating virtually zero aerodynamic drag. Its performance is characterized by a smooth, consistent transit and reliable centering, which is crucial for pilots trying to sense and react to subtle shifts in thermal lift.
- Beyond the competitive glider scene, this servo is a treasure for creators of indoor endurance flyers and other ultra-lightweight "slow-flyer" aircraft where total airframe weight is often measured in single-digit grams. Its incredibly low mass and minimal current draw are essential for maximizing flight times from tiny battery packs.
- For roboticists and mechatronics engineers, the BA-TS-2.5 is a specialized tool for projects where conventional micro servos are still too bulky. It's an ideal actuator for micro-robotics, such as insect-inspired walking robots, or for actuating delicate mechanisms like the aperture control on a custom miniature camera system or the sensor arrays on a feather-light drone. It is the definitive choice when the design brief demands control in the most constrained and weight-sensitive applications imaginable.
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