Futaba GY520_S9257 Helicopter Heading-Hold Gyro with S9257 High-Speed Servo  [GY520_S9257]

Futaba GY520_S9257 - GY520 Heading Hold Gyro + S9257 High Speed Digital Servo for Helicopter Gyro Operation
Price:
CAD$325.37
Brand:
Futaba
Model:
GY520_S9257
Condition:
Brand New
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Stabilize Your Helicopter Tail with Futaba GY520_S9257

The Futaba GY520 Heading Hold Gyro matched with the S9257 High-Speed Digital Servo gives RC helicopter pilots a dependable solution for improved tail control and consistent heading hold. This pair is built to perform across F3C and 3D flying styles, helping pilots tighten their collective and tail precision.

Control Response and Motion Handling

The compact GY520 packs sensor and control electronics into one unit for minimal weight. It uses a high-speed PID control loop to make fast, accurate corrections in flight. MEMS technology is used to integrate the sensing and processing on a single chip, improving repeatability and reducing drift.

Servo Compatibility and Speed Modes

The GY520 is designed to work with both analog and digital servos, running at 280Hz in 1520uS mode and 506Hz in 760uS mode. That flexibility supports a wide range of tail servos and helps maintain firm tail hold through its AVCS architecture.

Simple Programming Options

Programming the GY520 is straightforward via a single-button interface and multi-color LED feedback, or through a PC using the Futaba CIU-2 USB adapter for detailed setup. These options make tuning accessible for hobbyists and experienced pilots alike.

Specifications

  • 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
  • Operating Temperature: 14°F - 113°F (-10°C - +45°C)
  • Sensor Rate Range: +/- 800°/sec

Pairing the Futaba GY520 with the S9257 servo is a practical upgrade for pilots who want crisper tail response and stable heading hold without adding extra complexity to their setup.

The GY520 is very compact and mounts easily in tight spaces. Most pilots secure it near the tail servo or inside the central frame with double-sided tape or small screws for a neat installation.
Yes, the S9257 runs at high speed and is compatible with common flight controllers and governors. Check your setup voltage and servo travel to ensure smooth integration.
Start with conservative gain settings and test-hover to observe tail behavior. Increase gain slowly until you see crisp hold without oscillation, and use the CIU-2 adapter for fine adjustments if available.

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