Picoo Z

The Picoo Z (also sold under the brand name of Air Hogs Havoc Heli in North America) is a miniature remote-controlled 2-channel helicopter manufactured by Hong Kong–based Silverlit Toys.

It is designed for indoor flying, but can also be flown outdoors in calm conditions with minimal lighting, otherwise the sun will overpower the IR transmitter and cause the Picoo Z to crash.

The Picoo Z is made of tough EPP (expanded polypropylene) foam and comprises a lithium polymer rechargeable battery and 2 micro motors.

The Picoo Z features a self-stabilized main rotor with a weighted airfoil-type stabilizer bar that removes the need for corrective pilot input to achieve stable flight.

Because of this full-cyclic-authority stabilizer design, merely applying enough lift power to cancel gravity allows the Picoo Z to hover almost immediately making it very simplistic for a beginner.

The Picoo Z can reduce or increase the output through the tail rotor by means of an independent motor, allowing it to yaw left or right.

The remote control includes a trim button that allows the user to adjust the amount of electronic compensation.

As with its higher-powered counterparts, aggressive throttle changes can result in strong yaw motions, an effect that is even more significant when the helicopter battery is freshly charged.

In order to simplify the rotor head design, the Picoo Z does not feature either collective or user-input cyclic control, which would have allowed the user to freely fly it forwards & backwards / left & right on demand.

[2] The popularity of the Picoo Z has also led to a fan base that has created several web sites that include forums, modification information, and tips.