Futaba S9251 Precision Servo for GY601/GY611  [S9251]

Futaba S9251 - Digital Servo (57g/0.07sec/3.7kg)
Price:
CAD$162.13
Brand:
Futaba
Model:
S9251
Condition:
Brand New
Write a review

Tight Cyclic and Tail Response with Futaba S9251

The Futaba S9251 digital servo is built to match the timing and feedback of GY601 and GY611 gyros, giving RC helicopter pilots accurate control inputs. Its specific frame refresh behaviour helps maintain steady gyro performance and smooth control feel.

Gyro Friendly Frame Refresh

The S9251 is specified as the compatible servo for the GY601 gyro because of its frame refresh profile. Make sure to run the servo at 4.8V as recommended to avoid stressing the gyro.

Key Technical Data

  • 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 Type: Coreless
  • Gear Type: Metal
  • Bearings: Dual support bearings

Suited to pilots running GY601 or GY611 setups, the Futaba S9251 gives repeatable, precise control during demanding flight routines.

What makes the S9251 suitable for GY601 installations?

The servo's frame refresh timing and electrical characteristics match the GY601 requirements, giving consistent feedback to the gyro for stable tail and cyclic control.

Can I run the S9251 at higher voltages?

No; the unit is specified for 4.8V operation with the GY601. Using higher voltage risks damaging the gyro or upsetting its performance.

Any installation tips to reduce noise?

Keep the servo case isolated from metal frame parts, route signal wiring away from high current leads, and verify solid ground connections to minimise interference.

Copyright © 2008-2025 rcjaz.ca All rights reserved