Full-lock steering response is realized with a quick turn of ... This joystick also offers some ­autopilot functions if the boat is rigged with a compatible MFD and a Mercury GPS/IMU. The ...

[Jack]’s autopilot has three modes. In the one he calls knob steering, a potentiometer drives the existing hydraulic pump, which he controls with a Polulu Qik serial DC motor controller.

It takes the work out of maneuvering a boat, lets you easily overcome ... adjust the speed and steering, and enable the autopilot to automatically navigate in any direction you choose.