Marine Brochure - Twin Disc - #4

MARINE TRANSMISSIONS

From mid-size and large diesel-powered pleasure craft to a myriad of commercial boat applications, Twin Disc has marine transmission systems that precisely fit the horsepower and operating needs of each. Our standard marine transmissions feature helical gearing for quieter operation; hydraulic-controlled and oil-cooled clutches for smooth, fast shifting; identical reduction ratios in forward and reverse, in most cases full power forward and reverse and minimal external plumbing.

Some models are available with down angle output to provide near-level engine installation, a feature of particular interest to boat builders for optimizing space within the vessel. For additional space savings, remote mounted V-drive and direct-mounted V-drive models are available.

NEW QUICKSHIFT® — SO FAST, SO SMOOTH, YOU'VE GOT TO FEEL IT TO BELIEVE IT.

No other marine transmission in the world shifts as fast and smooth as the new Twin Disc QuickShift® yet it provides amazing slow speed control at five knots or less. With its patented, completely internal and Integrated clutch actuating system, QuickShift.® instantly delivers cushioned torque to the driveline when shifting from neutral to anywhere from full ahead to full reverse. It eliminates driveline shock while optimizing power to the driveshaft. And all this happens literally within milliseconds. So you have a steep but smooth power curve, whether you go full out or just nudge the throttle. It's difficult for a powerful diesel vessel to go very slow with a conventional transmission. Reducing engine rpms to get the vessel speed below five knots could stall the engine. Not so with QukkShift® It regulates engine torque at extremely low speeds to slow propeller speed down to approximately 50 rpms - allowing you to maneuver at less than five knots and even accomplish zero boat speed, an incredible advantage in docking.