Vane Brothers and McAllister are expanding their fleets with low-emissions tugboats for North American inland waterway and terminal operations.
Louisiana-based Conrad Shipyard has delivered an articulated tug-barge (ATB) unit, tug Wachapreague and barge Double Skin 803 to Vane Brothers. This will be used to transport oil products along US inland waterways.
This is the last of a series of three ATB units Conrad has built for the Baltimore, Maryland-headquartered group. Double Skin 803 is 122 m long and has a 22.5 m beam. It is equipped with bow thrusters and thermal heaters for its cargo of asphalt.
Wachapreague is 33.5 m long with a 11.5 m breadth and 4.7 m draught. It is powered by two Cummins engines each able to generate 1,650 kW of power.
Tug Technology & Business revealed that Vane Brothers’ third ATB was close to completion on 19 February. All three ATBs have Assateague-class tugs designed by Castleman Maritime with 3,300 kW of power. They are linked to 80,000-barrel capacity petroleum barges, designed by Bristol Harbor Group, using a Beacon Finland JAK 700 coupling system.
Eastern Shipbuilding Group has launched the hull of an escort and rescue tug for McAllister Towing at its Allanton facility. Capt Jim McAllister was built to a design by Jensen Maritime Consultants as a Z-drive tug. It will be used to support terminals on the US east coast.
Following its launch on 19 March, Eastern Shipbuilding is outfitting Capt Jim McAllister and expects to deliver it in H2 2019. It will be similar to Rosemary McAllister, delivered in June 2018, and Ava M McAllister, which is in the final outfitting stage.
Capt Jim McAllister will have total power of 5,050 kW and two Caterpillar 3516E diesel main engines that comply with the US Environmental Protection Agency’s Tier 4 emissions requirements. These will drive two Schottel Rudderpropeller of type SRP-4000 Z-drives.
Schottel has supplied Rudderpropellers to another escort and terminal tug being built for McAllister Towing. This will be an azimuth stern drive tug built at Washburn & Doughty shipyard in Maine, USA.
Emissions regulations will be discussed at length at Riviera Maritime Media's Sulphur Cap 2020 Conference, Awards and Exhibition in Amsterdam, in the Netherlands, in May.