Page 22: of Marine News Magazine (November 2013)

Designed by Jensen Naval Architects and Marine Engi- neers, and built by the Great Lakes Shipyard of Cleveland, Ohio a 74-foot workboat is quickly making a name for itself; in and out of the water. The ?HandySize? Class Tug was designed to  ll the niche between the 2,400 to 3,200 HP market for harbor workboats,  reboats, and construc- tion operations and coastal towing, too. The Tug model 2800 is powered by two Cummins QSK38,1400HP diesel engines rated at 1800 rpm, providing a total of 2,800 HP ? or in order words, just right for those niche tasks as- signed to a Great Lakes workboat. Built to American Bureau of Shipping (ABS) standards, the vessel?s 30 foot beam, and 11.5 foot draft combines with a robust speed of 12.0 knots and bollard pull of 45 metric tons to add to its popularity. Built to last and easy to op- erate, the ABS ?ice class? tug hull incorporates more steel thickness and tighter framing in the bow and stern, ensuring increased normal statutory life. Designed speci cally for a two-man operation, bridge control of engine room and deck winches is standard. The Cummins QSK38 engines provide increased fuel ef ciency, and lower maintenance costs. Because the ?HandySize? Tugs are smaller in weight and size, no loadline certi cate is needed, and only one licensed operator is required. The crew does not need to hold AB and OS ratings, or Merchant Marine Documents. This helps with future crew shortages along with increased wages, and bene t costs. Environmentally Sound Engineering This ?green? class tug reduces air emissions, and other environmental toxins. One unique feature is that no bal- last water, or sewage water is discharged from the tug. Its Cummins propulsion engines meet current U.S EPA Tier II and EU Stage IIIA emissions regulations. Other notable particulars are many: Engines: The ? HandySize? Class Tug combines the new- WORKBOAT DESIGN The Jensen Marine The Jensen Marine ?HandySize? Class Tug ?HandySize? Class Tug In a Class All its Own 22 MNNovember 2013MN November2013 Layout 18-31.indd 22MN November2013 Layout 18-31.indd 2210/28/2013 3:14:03 PM10/28/2013 3:14:03 PM