Overview
The Flashhobby FH-D9257MG is a digital tail servo designed for RC aircraft tail control. It supports 4.8V–6.0V operation and uses PWM (1520 μsec) control with a 800–2200 μsec pulse travel range.
Key Features
- Digital control (amplifier type: Digital Control)
- Coreless motor, IC drive
- PWM control: 1520 μsec; pulse travel: 800→2200 μsec; direction: Re-clock wise
- Dead band width: 5 μsec
- Operating voltage: 4.8V–6.0V
For compatibility questions (receiver/gyro PWM settings, power supply, horn fitment), contact support@rcdrone.top or visit https://rcdrone.top/.
Specifications
| Model | FH-D9257MG |
| Control system | Pulse Width Modulation Control 1520 μsec |
| Operating voltage range | 4.8V ~ 6.0V |
| Operating temperature range | -10°C ~ +50°C |
| Service life (Circle) | > 12000 times |
| Operation travel | 120° ± 10° |
| Limit angle | 180° ± 10° |
| Direction / signal pulse width range | Re-clock wise / Pulse Travel 800→2200 μsec |
| Driver type | IC Drive |
| Motor type | Coreless |
| Potentiometer type | Potentiometer |
| Amplifier type | Digital Control |
| Dimensions (spec) | 36 * 15.2 * 28.8 mm |
| Weight (spec) | 25 ± 1 g (without servo horn) |
| Weight (shown on scale photo) | 23.1 |
| Test voltage | 4.8V / 6.0V |
| Standing torque | 4.0 kg-cm (4.8V); 4.5 kg-cm (6.0V) |
| Speed (no-load) | 0.08 sec/60° (4.8V); 0.07 sec/60° (6.0V) |
| Idle current (spec table) | 120 mA (4.8V); 150 mA (6.0V) |
| Running current (spec table) | 800 mA (4.8V); 900 mA (6.0V) |
| No loading current (additional listing) | 0.18A (4.8V); 0.21A (6V) |
| Loading current (additional listing) | 1A (4.8V); 1.5A (6V) |
| Dead band width | 5 μsec |
| Ball bearing | no (spec table); another listing line states “Equipped with two ball bearings.” |
| Gear material | Plastic gears |
| Case material | Nylon plus fiber |
| Connector wire length (spec) | 250 ± 5 mm |
| Connector wire length (shown in photo) | 180 mm |
| Connector wire gauge | 28awg PVC |
| Wire info (Brown) | Negative |
| Wire info (Red) | Positive |
| Wire info (Yellow) | S Single |
| Mechanical drawing (visible dimensions) | 36; 32.9; 21.8; 19.5; 48.5; 42.4; Ø5.8; 4-Ø4.2 |
| Photo callouts (visible dimensions) | 36mm; 50mm; 15mm; 33mm |
What’s Included
- FH-D9257MG tail servo
- Selection of servo arms/discs
- Mounting screws
Applications
- RC aircraft tail servo applications
Details

The Flashhobby FH-D9257MG tail servo diagram provides key dimensions to help confirm fitment and mounting clearance.

The Flashhobby FH-D9257MG tail servo uses a compact case with 50mm overall length and a 180mm lead for flexible mounting and routing.

The Flashhobby FH-D9257MG tail servo features a compact black housing with a metal output spline and a standard 3-wire lead for easy hookup.

The Flashhobby FH-D9257MG tail servo includes two servo horns and a center screw for straightforward linkage setup.

The Flashhobby FH-D9257MG tail servo features a compact black housing with a metal output spline and a standard 3-wire servo connector for easy hookup.

The Flashhobby FH-D9257MG tail servo features a compact black housing with a metal output spline and standard 3-wire connector lead for easy hookup.

The Flashhobby FH-D9257MG tail servo weighs 23.1 on a digital scale and includes a standard 3-wire connector lead.

The Flashhobby FH-D9257 tail servo features a compact case with exposed gear train under the removable top cover for easy inspection and maintenance.
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