Key facts
- Brand
- Futaba
- Model
- GY502
- Category
- Other
- Industry
- Appliances
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-27
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Futaba GY502 AVCS Gyro Instruction Manual
This manual provides instructions for the Futaba GY502 AVCS (Angular Vector Control System) rate gyro, designed for use with .60 type and other model helicopters. It details the differences between conventional and AVCS gyro systems, emphasizing the AVCS system's ability to automatically trim rudder against side winds and return the tail to its original position. The document includes safety precautions regarding mounting, operating conditions, and fuselage maintenance to ensure optimal performance and user safety.
Read onlineFutaba GY502 specifications
| Product Type | Yaw-axis stabilizer for helicopter (rate gyro) |
|---|---|
| Display Device | 8-character dot matrix liquid crystal display |
| Operating Voltage Range | DC 3.8V to 6.0V |
| Current Drain | 70mA (@5.0V, including sensor) |
| Operating Temperature Range | -10 to +50 degree C |
| Operating Humidity Range | 10 to 90%RH (no condensation) |
| Dimensions (Amp) | 57 x 32 x 15mm |
| Dimensions (Sensor) | 34 x 34 x 16.5mm |
| Weight (Amp) | 34g |
| Weight (Sensor) | 25g |
All Futaba GY502 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the main advantage of the AVCS gyro over a conventional gyro?
The AVCS system performs an operation that stops drifting and returns to the original position, improving rudder trim operation and stability during high-speed reverse flight.
What should be done if the rudder neutral position is changed by the linkage?
The rudder neutral position in the AVCS mode must always be re-read before use by turning on the transmitter in AVCS mode and then the gyro.
What type of servos are recommended for use with the GY502?
A high-speed digital servo especially developed for gyro use is recommended, as higher speed and response allow for better gyro gain.
What precautions should be taken regarding temperature changes?
Avoid sudden temperature changes by allowing the model to stand for about 10 minutes before turning on power after moving it from extreme temperatures.