Futaba GY611_S9256 GY611 Gyro with S9256 Digital Servo Set for Tail Control  [GY611_S9256]

Futaba GY611_S9256 - GY611 Gyro + S9256 Servo
Price:
£289.35
Brand:
Futaba
Model:
GY611_S9256
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Integrated tail stabilisation package for scale helicopters

The Futaba GY611_S9256 bundle combines the GY611 yaw-rate gyro and control amp with the S9256 digital servo to offer an integrated tail control solution for radio control helicopters. The GY611 incorporates a 12-bit A/D converter and microcomputer control loop to minimise neutral drift, while the S9256 is made to work with super-narrow pulse drive and features a cooled Alumite case for improved thermal resistance.

The design highlights the elements that influence tail behaviour: the GY611’s SMM sensor technology and AVCS heading-hold style control deliver steady angular velocity sensing and low output drift, and the S9256 supplies rapid, compatible servo response. Correct mounting and methodical tuning reduce the amount of rudder trim required in normal flight envelopes.

What the kit contains

  • Futaba GY611 sensor and control amp
  • Futaba S9256 digital servo
  • Mini screwdriver
  • Three sections of double sided tape
  • Instruction sheet

Specifications

  • Item GY611 gyro (yaw-rate) and S9256 digital servo set
  • Model Number GY611_S9256
  • Material Alumite case on servo, low-back aeroform case on gyro
  • Power GY611 operating voltage DC 3.8V-5V, S9256 requires 4.8V Rx battery only
  • Gyro features 12-bit A/D, SMM sensor, AVCS (heading-hold style) control
  • Servo performance 0.06 sec/60° (at 4.8V), torque 47 oz-in (3.4 kg-cm) at 4.8V
  • Dimensions Amp: 57 x 32 x 15 mm, Sensor: 30 x 30 x 18 mm, Servo: 40 x 20 x 36.6 mm
  • Weight Amp 34 g, Sensor 30 g, Servo 57 g
  • Compatibility Model helicopters, yaw/tail stabilisation systems

This Futaba pairing is supplied as a tail stabilisation solution for RC helicopters; mount the sensor and amp close to the tail assembly, connect to a regulated 4.8V receiver battery for the servo, and follow the guide for endpoint and gyro gain setup to reach neutral rudder behaviour.

Which components come with the GY611_S9256 kit?

The kit includes the GY611 amp and sensor assembly, the S9256 digital servo, a mini screwdriver for adjustments, three strips of double-sided tape for mounting, and an instruction sheet.

How should I prevent vibration from affecting the gyro readings?

Use vibration-damping mounting methods, avoid direct contact with high-frequency sources, and ensure the sensor is secured in line with the fuselage axis to keep readings stable.

What maintenance helps extend servo life?

Keep linkages free of binding, check for gear wear, ensure clean connectors, and do not exceed the specified power supply to avoid overheating or premature wear.

Will the GY611 handle heading-hold demands in aerobatic flight?

The GY611 is a heading-hold style system that provides stable angular velocity control; extreme aerobatic inputs may still require pilot compensation and careful gain tuning to avoid oscillation.

Are there recommended servo endpoint settings to start with?

Begin with neutral endpoints as described in the manual, verify mechanical centring of the control horn, then fine-tune travel to match your linkage geometry before adjusting gyro gain.

How does temperature affect the gyro and servo operation?

Temperature changes can alter sensor behaviour and servo motor efficiency; allow warm-up where necessary and avoid extreme ambient heat that could reduce servo performance despite the Alumite case.

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