Harbor Docking and Towing chooses Washburn & Doughty for new tugs featuring Cat® Hybrid Propulsion

New Orleans, Louisiana – Caterpillar Marine is pleased to announce a contract to supply an integrated hybrid propulsion solution on two new vessels for Harbor Docking and Towing based in Houston, Texas.  The vessels will be designed and built by Washburn & Doughty in East Boothbay, Maine.  This sales contract is a culmination of joint efforts between Milton Cat and Louisiana Cat who supports Harbor Docking and Towing's vessels operating in Lake Charles, LA.  Caterpillar will be providing a 'stem-to-stern' Cat® content hybrid propulsion system scope including 3512E main engines, C18 generator sets, a C7.1 generator set, shaft lines, MTA 628 azimuth drives, booster motors, VFD's, switchgear, and a fully integrated and simple to use control system. 


Utilizing actual engine load history data from Harbor Docking and Towing's existing vessels, Louisiana Cat used the new Caterpillar Engine Value Analysis (EVA) tool to provide an accurate life cycle cost analysis.  A Cat Select study (Caterpillar tool to compare propulsion system options) was presented to Harbor Docking and Towing revealing that a hybrid propulsion system facilitated improved vessel performance while using smaller main engines (3512E's instead of 3516E's) and slightly larger generator sets.  The hybrid propulsion system yields substantial maintenance cost savings, reduced fuel consumption, reduced emissions, and a smaller DEF tank size.  The EVA and Cat Select reports helped Harbor Docking and Towing make an educated buying decision.

Washburn & Doughty proved to be a great partner for this project due to their design capabilities and excellent Technical and Sales support from Milton Cat.   "We are excited to further bolster our long-standing relationship with Washburn & Doughty, said Kevin Hampson, marine sales manager for Milton Cat. “We really appreciate the cooperation and support we have received from Louisiana CAT in helping this contract become a reality.”  Harbor Docking and Towing emphasized a high value on the integration synergies Washburn & Doughty offered by having full responsibility for both design and construction.  Choosing Washburn & Doughty, combined with Caterpillar supplying the entire propulsion scope, provided Harbor Docking and Towing with a truly integrated solution.

To meet the experts and learn more about Caterpillar Hybrid Propulsion Systems, stop by the Caterpillar exhibit #2701 at the 2017 International Workboat Show to be held November 29 – December 1 at the Morial Convention Center in New Orleans, Louisiana. On Thursday, November 30 Caterpillar experts will host a technical discussion on the Hybrid Propulsion Solutions, click here to register to attend the educational session.

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.

About Caterpillar

For over 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 2016 sales and revenues of $38.5 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 - Construction Industries, Resource 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.

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