Futaba GY520 Gyro with S9254 Coreless High Torque Servo  [GY520_S9254]

Futaba GY520_S9254 - GY520 Gyro + S9254 Digital Coreless High Torque
Price:
£170.19
Brand:
Futaba
Model:
GY520_S9254
Condition:
Brand New
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Accurate Helicopter Control Using Futaba GY520 and S9254

The Futaba GY520 gyro paired with the S9254 Digital Coreless Servo is aimed at pilots who prioritise precise, reliable control. This pairing helps deliver stable heading hold and quick servo response for refined model handling.

Miniaturised MEMS Gyro for Stable Flight

The GY520 packs MEMS sensor technology and a tuned PID control scheme into a compact package to reduce drift and improve stability. It supports both F3C and 3D operation modes with six programmable settings for tailored performance with analog or digital servos.

Swift Digital Coreless Servo for Precise Corrections

The S9254 offers a coreless motor for reduced inertia and faster reaction, combined with dual ball bearings for smooth actuation. Its dust and water resistant construction increases longevity for active flying schedules.

Specifications

  • GY520 Size: 0.82 x 0.82 x 0.43" (20.8 x 20.8 x 11mm)
  • Voltage Range: 3.8 - 6.0V DC
  • Control System: Advanced PID control
  • Current Draw: 40mA (without servo)
  • Sensor: MEMS vibrating structure gyro
  • S9254 Speed: 0.06 sec/60° @ 4.8V
  • Torque: 47 oz-in @ 4.8V
  • Dimensions: 1.6 x 0.8 x 1.4" (40 x 20 x 37mm)
  • Weight: 1.7oz (49g)
  • Power Supply: 4.8V

For builders and competitive flyers looking to refine tail and cyclic response, the Futaba GY520 and S9254 deliver the control fidelity required for precise flying.

Yes, perform a level and neutral calibration following installation to ensure accurate gyro readings and correct tail centring.
Run a bench test at the recommended 4.8V supply, observing travel and load under typical linkages to confirm speed of 0.06 sec/60° and expected torque.
The GY520 is compatible with many control setups; coordinate gyro gains with governor or collective settings to avoid control conflicts during operation.
Inspect linkages before each flying session for play or wear, and replace any worn bearings or rods to maintain crisp control response.

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