Gator RC 19mm (0.75") Aluminum Locking Servo Arm 25T Futaba Style – Red
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Gator RC 19mm (0.75") Aluminum Locking Servo Arm 25T Futaba Style – Red
The Gator RC 19mm (0.75") Aluminum Locking Servo Arm is a lightweight CNC-machined servo arm designed for Futaba-style 25T spline servos. The locking clamp design helps secure the arm to the servo spline, while the red anodized aluminum construction provides a rigid upgrade over standard plastic servo arms.
This servo arm features dual M2 threaded linkage positions at 15mm (0.59") and 19mm (0.75") from center, giving you two setup options for control throw and linkage geometry. The compact 31mm (1.22") overall length makes it useful for tighter installations where a shorter locking servo arm is needed.
Key Features
- Fits Futaba-style 25T spline servos
- 19mm (0.75") primary linkage position
- Additional 15mm (0.59") linkage position
- Dual M2 threaded linkage holes
- 31mm (1.22") overall length
- CNC-machined aluminum construction
- Secure locking clamp design
- Red anodized finish
- Lightweight 1.7g (0.06 oz) design
Why Use a Locking Servo Arm?
The locking clamp design helps secure the servo arm around the output spline instead of relying only on the center screw. This provides a more secure fit and helps maintain consistent control response in RC aircraft linkage setups.
The dual linkage positions allow pilots to choose between a shorter 15mm (0.59") position for finer control resolution or the longer 19mm (0.75") position for increased control throw.
Specifications
| Brand | Gator RC |
| Spline Compatibility | Futaba Style 25T |
| Material | CNC Machined Aluminum |
| Color | Red |
| Overall Length | 31mm (1.22") |
| Linkage Positions | 15mm (0.59") and 19mm (0.75") from center |
| Distance Between Linkage Holes | 4mm (0.16") |
| Linkage Hole Thread | M2 |
| Arm Thickness | 2mm (0.079") |
| Clamp Screw | M3 x 6mm (0.24") |
| Center Hole OD | 5.5mm (0.217") |
| Weight | 1.7g (0.06 oz) |
| Locking Clamp Style | Yes |
Linkage Position Guide
- 15mm (0.59") position: Shorter throw with increased control resolution.
- 19mm (0.75") position: Longer throw for increased control surface movement.
Compatibility
This servo arm is designed for servos using a Futaba-style 25T spline. Always verify your servo spline count before installation.
Applications
- RC airplanes
- Aerobatic aircraft
- Sport aircraft
- Scale aircraft
- Compact linkage installations
- Control surfaces requiring a shorter locking servo arm
Installation Tips
- Verify your servo uses a Futaba-style 25T spline before installation.
- Make sure the servo arm is fully seated on the output spline before tightening.
- Use threadlocker on metal-to-metal fasteners where appropriate.
- Do not overtighten the locking clamp screw.
- Select the 15mm (0.59") or 19mm (0.75") linkage position based on the aircraft manufacturer's recommended control geometry.
- Verify full control travel and linkage clearance before flight.
Package Includes
- 1 × Gator RC 19mm (0.75") Aluminum Locking Servo Arm
- 1 × M3 x 6mm Clamp Screw