Futaba S9251 Digital Servo for GY601 and GY611 Gyros  [S9251]

Futaba S9251 - Digital Servo (57g/0.07sec/3.7kg)
Price:
£87.81
Brand:
Futaba
Model:
S9251
Condition:
Brand New
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Stable Gyro Response with Futaba S9251

The Futaba S9251 digital servo is designed to interface with GY601 and GY611 gyros to deliver accurate control inputs for helicopter models. Its refresh characteristics aid consistent gyro feedback and steady flight behaviour.

Compatibility and Voltage Advisory

The S9251 is identified for use with the GY601 due to its frame refresh timing. Always run the servo at the prescribed 4.8V to prevent damage or erratic gyro operation.

Specifications

  • Modulation: Digital
  • Torque: 4.8V: 51.0 oz-in (3.67 kg-cm)
  • Speed: 4.8V: 0.07 sec/60°
  • Weight: 2.01 oz (57.0 g)
  • Dimensions: 1.57 x 0.79 x 1.46 in (39.9 x 20.1 x 37.1 mm)
  • Motor: Coreless
  • Gears: Metal
  • Support: Dual bearings

Perfect for pilots using GY601 or GY611 gyros, the Futaba S9251 offers precise, dependable actuation for fine helicopter control.

Will the S9251 work with digital governors or flight controllers?

It is intended for direct servo use with GY601 and GY611 gyros; integration with governors or flight controllers should be verified on a case by case basis.

How do I check the servo centre and travel?

Power the system at 4.8V, set trims and subtrim on your transmitter, and confirm neutral with the swash or tail linked before flight to ensure correct geometry.

What routine checks should I perform before flying?

Inspect linkages for play, check gear mesh and bearing smoothness, and verify wiring and connectors are secure to avoid in-flight issues.

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