Harley Marine Selects Tug-Optimized CAT Power & Propulsion Package

Houston, TX – Seeking a complete power and propulsion system designed specifically for tug operations, Seattle-based Harley Marine Services turned to Caterpillar—ordering four Cat® 3516 marine propulsion engines and four Cat Propulsion Marine Thruster Azimuth – Tug (MTA-T) rated drives.

These units will power two new Harley Marine harbor tug vessels currently under construction at Diversified Marine Incorporated, a shipyard in Portland, Oregon.

“Much of Harley Marine’s fleet is powered by Cat engines, and with the construction of these two new vessels, they’re adding our tug-specific propulsion solution as well,” said Emil Cerdier, sales manager for Cat Propulsion. “Getting a complete package from one supplier simplifies the design,installation, and service support, allowing Harley to rely on the Cat dealer network as a single point of contact forthe entire powertrain system.”

Each Harley Marine harbor tug will feature a pair of 3516 engines, each delivering 2575 hp(1920 kW) @ 1600 rpm and two MTA 524-T thrusters with a 95.5” inch (2,400mm) propeller diameter.

The MTA 524-T is a new version of a proven design, specifically optimized for the operation profile of a tug. Based on the standard MTA design, the “Tug” rated drives include features to maximize bollard pull, simplify installation and maintenance, and increase maneuverability. The Harley Marine units will be delivered with custom-made fixed-pitch propellers and a PTO-powered steering and lubrication system.

Cat Propulsion’s complete package for tugs includes engines, high-speed shafting, clutches, and controls. The display consoles for the control system willalso control engine and thruster functionality.

“Our MTA-T units bring the twin advantages of performance excellence and economy to the tug market,” Cerdier said. “Customers like Harley Marine will benefit both in terms of bollard pull and from the reliability of a consolidated control-engine-thruster package with component parts optimized to work together.”

Cat dealer Peterson Power led the efforts on the project, helping refine the spec and eventually supporting the installation and service of these systems. Further enhancing the total Cat Solution, Cat Financial is providing complete vessel financing throughout the construction and term of both tugs. The Cat engines and thrusters are expected to deliver in mid-2016, with vessel deliveries in early 2017.

To learn more about Cat Propulsion solutions for the tug market, visit Caterpillar Marine at Booth #1901/#2001 at the International WorkBoat Show in New Orleans, December 1–3. More information is available at www.cat.com/marine.

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About Caterpillar Marine

Caterpillar Marine, with headquarters in Hamburg, Germany, groups all the marketing and service activities for Cat and MaK™ marine diesel, dual fuel and gas power and propulsion systems within Caterpillar Inc. The organization provides premier power solutions in the medium- and high-speed segments with outputs from 93 to 16,800 kW in main propulsion and 10 to 16,100 kWe in marine generator sets as well as a comprehensive portfolio of propulsion solutions. The sales and service network includes more than 2,100 dealer locations world-wide dedicated to support customers in ocean-going, commercial marine and pleasure craft wherever they are.

More information is available at: www.cat.com/marine

About Caterpillar

For 90 years, Caterpillar Inc. has been making sustainable progress possible and driving positive change on every continent. Customers turn to Caterpillar to help them develop infrastructure, energy and natural resource assets. With 2014 sales and revenues of $55.184 billion, Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. The company principally operates through its three product segments - Resource Industries, Construction Industries and Energy & Transportation - and also provides financing and related services through its Financial Products segment. For more information, visit caterpillar.com. To connect with us on social media, visit caterpillar.com/social-media.

More information is available at www.cat.com.