IR to 2.4GHz – 20g 3-Ch Airwolf Coax
Just did the first testflights with the Airwolf coax helicopter – made from the well know RC toy heli, the IR, 3Ch Airwolf.
The electronics were removed and replaced by a Walkera 5G6 4 in 1 (RX2402) which has 2 brushed motor outputs, 2 servo outputs and an onboard gyro. The 4 in 1 goes into the body quite nicely – only little cutting was necessary.
The heli is now powered by a 50mAh Zippy lipo – maybe a 70mAh or even 110mAh will also do.
Because of a broken rotorblade tip i had to cut the blades back – not good, because lift is decreased significantly – now im waiting for new blades.
The third channel is used to controll the vertical tailrotor. This rotor achieves forwars and backward flying. The motor is powered via a servo board (PCB) which instead of driving the servo motor drives the tailmotor.
Original IR Toy specs (measured)
- 1s 3.7V 65mAh Lipo
- 23.1 g AUW
- Flight time ~4:30 minutes
- Main rotor diameter 132mm
- Mainmotors 2x 6mm Micro coreless
- Hover headspeed, upper rotor ~1700 RPM
- Max thrust ~30g (forget about Newton for a sec.:D)

