Servo Specs, Reviews, & Comparison Tool
Blue Arrow R08010 - Digital Sub-Micro Robot Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Digital |
| Torque: |
4.8V: 18.75 oz-in (1.35 kg-cm) 6.0V: 25.00 oz-in (1.80 kg-cm) |
| Speed: |
4.8V: 0.17 sec/60° 6.0V: 0.13 sec/60° |
| Weight: | 0.35 oz (9.9 g) |
| Dimensions: |
Length:0.91 in (23.1 mm) Width:0.45 in (11.4 mm) Height:1.18 in (30.0 mm) |
| Motor Type: | (add) |
| Gear Type: | Plastic |
| Rotation/Support: | (add) |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | JR |
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Notes
- The discontinued Blue Arrow R08010 is not a conventional servo; it is a specialized actuator designed for a single, critical task: operating retractable landing gear in radio-controlled aircraft. Unlike standard proportional servos that can be stopped at any point in their rotation, the R08010 is a non-proportional, end-to-end device. When it receives a signal, it travels its full rotational distance (typically 180 degrees) from one end of its travel to the other, with no stops in between. This is by design. The goal is to drive the landing gear mechanism firmly into the locked-up or locked-down position, ensuring the gear is secure for flight or for landing. The internal controller is also designed to stall at the end of its travel without drawing excessive current, which could otherwise damage the servo or drain the battery.
- Its primary value lies in its purpose-built simplicity and reliability. Setting up retracts with a standard servo can be complex, requiring careful endpoint adjustments to avoid stalling the servo and burning it out. The R08010 eliminates this complexity. You simply connect it to the linkage and plug it into a switched channel on the receiver. It takes the guesswork out of creating a reliable retract system, which is why it's a popular choice for sport and scale modelers who are adding the realism of retractable gear to their aircraft.
- While its non-proportional nature makes it unsuitable for most common robotics tasks like steering or joint articulation, its unique behavior can be cleverly adapted for specific scenarios. A roboticist could use an R08010 for any simple, binary (on/off or open/closed) mechanical action. For example, it would be perfect for opening and closing a payload bay door, deploying a sensor boom, activating a locking mechanism, or triggering a simple mechanical release. It is a simple, robust solution for any task that requires a component to be moved from a fully retracted to a fully extended position.
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