JOYSTICK Control is very simple, and takes very little space. It is an economical means of having additional control stations and can be used in addition to a PS-Helm unit, or (where survey allows) as the sole means of control. PLEASE NOTE: Where JOYSTICK or JOYWHEEL control is to be used, the power-pack of the steering system must be ordered for use with autopilot or joystick to ensure it is provided with the correct solenoid valve and flow control. It is essential to adjust the flow control to provide the best speed of movement for safe and effiicient handling.