Cummins Marine took their time so as to make doubly sure before releasing their new EPA Tier 3 compliant engine to the market; just in time to breast the tape before the deadline for the EPA standard for 2.5 to 3.5-liter per cylinder engines took effect on New Year’s Day. That was because they needed time to give their new QSK50 EPA Tier 3 engine a thorough work-out in a real marine working environment (and a tough one at that, as we shall see) on top of earlier test-bed trials in the factory.What better than to install the new engine in a working towboat – which is just what they did last August – so that by mid-December 2012 the engine under test had done its job for about 1720 hours, in one of Enterprise Marine’s towboats, the Eugenie, under the sharp eye of Cummins’ engineers.
Towboat 'Eugenie': Photo courtesy of photographer Ron Richardson/Dick's Towboat Gallery
The Eugenie’s natural habitat as a push boat working the US inlan... [More]
Ship Architects, Inc. is a company that specializes in providing shipyards and owners with technical solutions in conceptual and detailed vessel design, project management, and other associated services. Wärtsilä is the leader in dual-fuel technology that allows its propulsion solutions to be operated on a variety of fuel types, including clean natural gas. The companies have together developed a new concept of towboat design that employs Wärtsilä 20DF and 34DF dual fuel engines for propulsion. [More]