EJS (Express Joystick System)
Joystick docking and positioning for boats with conventional shafts and thrusters.
The Express Joystick System lets boats with conventional inboard shafts, Twin Disc transmissions and thrusters manoeuvre by joystick. It coordinates engine speed, clutch engagement through QuickShift and thruster output. Express Positioning adds station-keeping functions. EJS is sold for yachts, workboats and patrol craft, and Twin Disc added Kobelt controls in 2024.
Listed under
More from Twin Disc
Twin Disc
Arneson Surface Drive (ASD)
Articulating surface drives in seven sizes rated from 1,627 to 22,371 Nm input torque for high-speed craft.
Twin Disc
Rolla propellers
Swiss-origin ROLLA submerged and surface-piercing propellers for surface drives and high-performance craft.
Twin Disc
QuickShift (MGX)
Fast-shift transmissions with integrated clutch, valves, actuators and electronic control, up to about 3,660 hp.
Twin Disc
Standard MG series
Standard marine transmissions in more than 100 models spanning about 35 to over 4,000 hp.
Twin Disc
MGE / MGH
Transmissions for full-electric/serial hybrid (MGE) and parallel hybrid (MGH) drivelines, 425–1,163 kW.
Twin Disc
Twin Disc integrated propulsion packages (EJS, Arneson, Rolla)
Transmission-centred packages combining Twin Disc gears with EJS joystick control, Arneson drives and Rolla propellers.
Twin Disc
QuickShift
Electronic clutch and shift control integrated with QuickShift transmissions for smooth engagement and low-speed control.