Twin Disc, Inc. (NASDAQ: TWIN), today announced that it has signed a series of agreements with Caterpillar to collaborate on the development of Joystick technology solutions for pleasure craft marine vessels equipped with the standard conventional shaft arrangement and vessels that will utilize an innovative Cat POD system featuring Twin Disc’s patented QuickShift ® transmission technology.

“We are excited to partner with Cat as they set out to provide the complete power and propulsion solution to the global pleasure craft market,” commented Michael Batten, Chairman and CEO of Twin Disc, Inc. “Cat’s commitment to the marine markets through its aggressive product development, superior performance, and extensive product and customer support is legendary. We feel that they are a perfect partner for us to leverage our innovative QuickShift ® and controls technology to the pleasure craft market.”

The Joystick system features innovative technology to integrate both power and propulsion components including engines, transmissions, thrusters and propellers into one simplified and seamless control system. Joystick systems integrated with the Cat POD systems will be available to order in 2014, but similar Joystick systems for non-pod vessels should be ready for delivery in 2012.

For more information on Twin Disc marine products, please visit us at

About Twin Disc, Inc.

Twin Disc, Inc. designs, manufactures and sells marine and heavy-duty off-highway power transmission equipment. Products offered include: marine transmissions, surface drives, propellers and boat management systems, as well as power-shift transmissions, hydraulic torque converters, power take-offs, industrial clutches and control systems. The Company sells its products to customers primarily in the pleasure craft, commercial and military marine markets, as well as in the energy and natural resources, government and industrial markets. The Company’s worldwide sales to both domestic and foreign customers are transacted through a direct sales force and a distributor network.

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