A3 V2 6-Axis Gyro Stabilizer Flight Controller for RC Airplanes

The A3 V2 is a flight stabiliser for RC planes and the upgraded version of the A3-L gyro, with an integrated high-precision 6-axis MEMS sensor (3-axis gyro plus 3-axis accelerometer). It smooths out gusts and turbulence and, at the flip of a switch, returns the aircraft to upright, level flight — a safety net for trainers and new pilots.

Key features

• Auto-recovery: one switch brings the plane back to level flight.
• Four flight modes: normal, auto balance, auto hover and gyro off, each with its own gain adjustment.
• Three wing types: standard wing, delta (flying) wing and V-tail.
• Servo support: works with both analogue and digital servos.
• Protective shell: a light case guards the board inside the fuselage.

Specifications

• Sensor: 6-axis MEMS (3 gyro + 3 accelerometer)
• Gyro range: ±2000 °/s
• Accelerometer range: ±4 g
• Input voltage: 5–8.4 V
• Operating temperature: -40 to 85 °C
• Dimensions: 43 × 27 × 13 mm

The stabiliser wires in between the receiver and the control-surface servos; power it from a 5–8.4 V source such as the ESC's BEC. It is built for fixed-wing models only — multirotors need a dedicated flight controller.