The Express Joystick System (EJS) and Express Positioning System use the Twin Disc EC300 Power Commander electronic propulsion control system to give proportional control of the throttles, shift the QuickShift transmissions, and operate the thrusters – all on boats with conventional propulsion – according to the manufacturer.
With Variable Idle Mode, the engine throttle setting is kept lower, particularly for station-keeping functions, according to Twin Disc. The company says the automated system adjusts the idle level as needed, so it will respond to changing conditions, such as increasing wind and current effects, with heightened throttle response. The system also works with the joystick control, so it provides the power needed for the task at hand.
Technicians can tune the engine and thruster controls through configuration panels. Variable Idle Mode is available in the software of all new Express Joystick and Express Positioning Systems, and it can be loaded onto existing systems as well.