Abstract: A soft target movement platform (1) which comprises at least one drive unit (11), each unit having a motor carrier (12). The drive motor (21) is preferably journaled in the motor carrier about an axis central and longitudinal of the motor. A drive wheel (6) is drivingly connected to the drive motor, with the wheel's axis of rotation offset from the central longitudinal axis by a lever arm (31). The lever arm having a horizontal extent in use, whereby wheel load tends to rotate the motor with respect to the carrier about the longitudinal axis. A spring (32) acting between the drive motor and the carrier counteracts the wheel load rotation.

Abstract: A soft target movement platform 181 for carrying a soft target is provided. The platform comprises: a first drive motor 187; a first driven wheel 185 driveable by the first drive motor: a second drive motor 191 a second driven wheel 189 driveable by the second drive motor; and a steering assembly 101. The steering assembly comprises: a steering motor 47; and an undriven wheel 43 arranged to be actively turned about a steering axis by the steering motor. The platform is steerable by a differential torque from the first and second drive motors to the respective first and second driven wheels, and steering assistance is provided by actively turning the undriven wheel about the steering axis by the steering motor.

Abstract: A soft target movement platform (1) which comprises at least one drive unit (11), each unit having a motor carrier (12). The drive motor (21) is preferably journaled in the motor carrier about an axis central and longitudinal of the motor. A drive wheel (6) is drivingly connected to the drive motor, with the wheel's axis of rotation offset from the central longitudinal axis by a lever arm (31). The lever arm having a horizontal extent in use, whereby wheel load tends to rotate the motor with respect to the carrier about the longitudinal axis. A spring (32) acting between the drive motor and the carrier counteracts the wheel load rotation.