Abstract: A single channel continuous wave transmitter and receiver to produce a control signal to change the direction of the drive motor of a toy such as a model car having steerable wheels. A single electric motor provides the propulsion for the toy in one direction through the engagement of a planetary gear with a primary drive gear. The planetary gear is mounted on a rotatable ring surrounding the drive gear. When the direction of the motor is changed, the driver gear on the motor which is meshed with the planetary gear causes the planetary gear and ring to rotate until the planetary gear engages a secondary drive gear thereby changing the direction of travel of the vehicle. The rotational movement of the ring is also used as an actuator mechanism. This actuator mechanism is coupled to a cam that is in return coupled to the steering of the vehicle.

Abstract: A two-wheeled motorcycle having a frame carrying a drive motor, a radio, a servo mechanism controlled by the radio, and a power source for driving the motor, radio, and servo. The servo mechanism includes a weight which may be moved to one side or the other of a generally vertical plane extending through the motorcycle when it is in an upright position. The steering crown is arranged so that a plane including the axes of the down tube and the fork is behind the main pivot. The axle of the front wheel is in the plane of the fork axes. The plane including these axes intersects the surface upon which the motorcycle rests at an angle in the range of about 20.degree.-25.degree. relative to vertical. The arrangement of the steering crown is such that, when the servo mcves the weight to one side of the generally vertical plane, the front wheel will tend to turn into the direction in which the weight is moved.