Marine Product Guide
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TABLE OF CONTENTS Twin Disc Marine Product Information . . . . . . . . . . . . . . . . 3 - 25 Service Classification Definitions . . . . . . . . . . . . . . . . . . . . . . . 26 Important Application Information . . . . . . . . . . . . . . . . . . . . . 27 Pleasure Craft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 - 33 Standard and QuickShift® Marine Transmission Ratings Light Duty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 - 39 Standard and QuickShift® Marine Transmission Ratings Intermediate Duty . . . . . . . . . . . . . . . . ....

ENGINEERED TO WORK. HARD. Twin Disc marine products are designed, engineered and built to perform real tasks, really well, in the real world. Sometimes it’s glamorous work; sometimes it’s not so pretty. But it’s always necessary. From luxurious pleasure craft to stealthy military vessels to hard-working tugs, pushboats, fishing boats, crew boats and supply vessels, Twin Disc products optimize the control of the engine’s horsepower, contributing to the boat’s overall performance, productivity, operating efficiency and cost-effectiveness. Twin Disc marine products propel all kinds of...

/\Rneson BY TWIN DISC SPEED IS JUST THE BEGINNING Mechanical innovator and offshore racing enthusiast Howard Arneson perfected the performance and reliability of surface-piercing propulsion . Twin Disc then made Arneson Surface Drives® available for non-racing applications — pleasure craft and commercial vessels, as well as military applications . Today, Arneson Surface Drives® are renown as the fastest, most efficient, fuel-friendly propulsion systems on the planet. FEATURES & BENEFITS • Cleaner hull, trimable drive shaft and adjustable angle • Completely eliminates cavitation, thus...

TWIN DISC MARINE CONTROL DRIVE (MCD) TESTED & PROVEN With over 30 years of research, development and operation, the versatile Twin Disc Marine Control Drive (MCD) has proven its worth in a wide variety of workboat applications including tugs, offshore supply vessels, double-ended ferries, icebreakers, dredges and fire fighting vessels. FEATURES & BENEFITS • Provides operating advantages for vessels requiring highly-accurate positioning • Used in conjunction with Azimuth Thruster systems • Best alternative to controllable pitch propellers (CPP) • Dynamic positioning (DP) capable • PTO to...

RELIABLE AND HIGH-PERFORMING Our years of experience in propulsion technologies have brought Twin Disc to the development of our bow thrusters line . Our thrusters are suitable for applications from 20' to 130' . Compact design and easy installation make Twin Disc bow thrusters a favorite among major boatyards . TWIN DISC ELECTRIC THRUSTERS FEATURES & BENEFITS • Compact and effective design for easy installation, even in restricted areas • Bow- and stern- mounting options • Reversible electric motor at continuous current • Transmission gears built in high-tensile materials • Complete range...

TWIN DISC TRIM TABS TWIN DISC STEERING SYSTEMS HYDRAULIC AND ELECTRONIC OPTIONS Our steering systems are a combination of selected materials, innovative design and state-of-art technical solutions . All components are built with high precision systems and tooling to meet the requirements of the best survey authorities such as Rina Lloyd's Register, ABS and Bureau Veritas . FEATURES & BENEFITS • Wide variety of possible configurations • Suitable for either small/medium pleasure boats and commercial vessels • Highly-flexible and efficient electronic systems are suitable for applications up to...

SEAPROP 60 SAILDRIVE SAILING EASE AND VERSATILITY The SeaProp 60 saildrive is a propulsion system for sailboats with engines rated up to 56 kW (75 hp) @ 3600 rpm . Sailboat manufacturers and operators alike benefit from this system's unique but proven design . FEATURES & BENEFITS • Easy, space-saving installation • Eliminates propeller shaft along with stuffing box, cutless bearing, stern tube and strut • Can be matched with a variety of fixed or foldable propellers • Sailboat manufacturer will overcome inherent limitations and problems of conventional inboard shaft drive installations with...

DON'T BUY YOUR NEXT BOAT WITHOUT IT The Twin Disc EJS® (Express Joystick System®) absolutely revolutionizes docking and slow speed maneuvering of diesel powered, conventional shaftline boats . With easy fingertip movements you control direction and speed — instantaneously and intuitively. No lugging. No lurching. No clunking. All thanks to proven QuickShift® transmission and EC300 control technology. FEATURES & BENEFITS • "Push, twist and go" directional maneuvering • Proven QuickShift® transmission and EC300 control technologies • Simultaneously and instantaneously controls...

EXPRESS JOYSTICK SYSTEM® (EJS®) Sample Diagram EC300JS2 Twin Disc Hydraulic Bow Thruster Twin Disc Hydraulic Stern Thruster 1 C300: Standard control system for up to seven digital stations and up to eight E engine/transmission shaft lines per vessel. 2 C300JS: Express Joystick System® option for up to six joystick stations. E 3 olor display option (shown). C 4 Available GPS option, station-keeping, Express Positioning System®. 5 win Disc QuickShift® transmissions required. T PLEASE CONTACT TWIN DISC OR A TWIN DISC AUTHORIZED DISTRIBUTOR FOR MORE DETAILS.

BACKUP PROPULSION CONTROL SYSTEM Twin Disc-Supplied Operator Panel Customer-Supplied Local Operator Panel For use with EC300 Power Commander® and Twin Disc marine transmissions. OPERATOR PANEL OPERATOR PANEL FEATURES & BENEFITS: • Provides fully redundant and independent propulsion control of EC300 Power Commander systems with electronically-governed engine and Twin Disc Quickshift® and standard marine transmissions • Includes a twin engine interface box, operator panel and associated harnesses • Interface box developed to be plug and play with Twin Disc Quickshift and standard marine...