Coastal

New owner for U.S.-flag, twin-screw harbor tug

Signet Maritime Corporation of Houston, Texas has sold its U.S. flag, twin screw harbor tug “Signet Reliance” (ex-Dotsie) to Rockingham Carriage Service of Portsmouth, New Hampshire. The tug, with dimensions of 52.8

Harley Marine expands services to Gulf Coast

Seattle, Wash., based Harley Marine Services (now known as Centerline Logistics) is expanding its service to the Gulf Coast by acquiring the former MGI of Houston, Texas. This business will be operated

Donjon Shipbuilding floats out tugboat

The Erie, Pa., shipyard of Donjon Shipbuilding and Repair has floated the 135-foot-long, 10,500-horsepower tugboat Ken Boothe Sr. into Presque Isle Bay. The vessel was moved from Donjon Shipbuilding’s 1,250-foot graving dock

Wärtsilä offers dual fuel solution for riverboats

Wärtsilä is cooperating with Ship Architects, Inc., Daphne, Ala., to bring natural gas fueled propulsion to America’s waterways. The companies have together developed a new concept of towboat design that employs Wärtsilä

Body of capsized tug captain found

The body of the 46-year-old captain of the tug Fairplay-22, which capsized in Rotterdam on November 11th, was found today on the beach close to Hoek van Holland, the Netherlands. Owner of

Captain of capsized tug still missing

The tug Fairplay-22, which capsized on November 11 while it was assisting the superferry Stena Brittanica to its terminal at Hoek van Holland, Netherlands, has been refloated by Smit Salvage using the

ACP starts commissioning new tugboat series

Calovebora, the first in a series of thirteen Z-Tech tugboats built for ACP (the Panama Canal Authority) by Cheoy Lee Shipyards of Hong Kong is now in Panama. The 26-engine order for

New inland waterways clean ship concept

Called the “M-factor,” the vessel is powered by Volvo Penta marine diesel engines both for propulsion and for the bow thruster.

The ship is 85 meters long, 9.6 meter wide and has a load capacity of 1,500 tons, and is a relatively small ship with a very large cargo hold.

The size of the ship and its limited height enables it to sail in almost all European inland waterways. As it is mainly designed for the smaller channels and rivers it will use a 750 hp Volvo Penta D16-750 hp as propulsion engine. Usually this size of ship would be equipped with an engine producing at least 1,000 hp.

Mercurius has been searching for the most fuel efficient engine at part load. In this application, the engine will be operating at part load for at least 80-90 percent of running time.

On part load, the Volvo Penta D16 outperforms the competition in this power range and was thus selected as main propulsion engine.

To reduce emissions, the engine will be equipped with the STT Emtec SCR and POC filter system as a standard even though this is still not required by legislation. The SCR system cuts NOx by 70 to 90 percent and the POC filter reduces the PM by 40 percent.

The prototype will be built at Mercurius Shipping’s own shipyard in Begej and will be ready in May 2011. The plans are to build at least 4-6 ships yearly, depending on the success of this unit. A contract for the second ship has already been given to the Volvo Penta Center Terlouw in Rotterdam. It will deliver the main propulsion engine D16-750, Twin Disk gearbox TD-5170 and SCR system as a complete package to the Mercurius Shipping Group.

A Volvo Penta D12-400 will be installed as a thruster engine. The thruster will be delivered as a complete package including engine from the local manufacturer, Verhaar thruster systems.