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Tug Technology & Business

Vane Brothers expands ATB fleet with newbuilding series

Thu 14 Feb 2019 by Martyn Wingrove

Vane Brothers expands ATB fleet with newbuilding series
Wachapreague is an Assateague-class tug built by Conrad Shipyards

Vane Brothers is about to complete a three-tug newbuilding series that will expand its US inland waterway and coastal barge operations with the delivery of a third Assateague-class unit that will be part of an articulated tug-barge (ATB) system.

Conrad Shipyards has finished constructing Wachapreague, an ATB tug that will be matched with newbuilding tank barge DS-803 during this quarter.

According to Vane Brothers port captain Jim Demske, Wachapreague was ready to leave Conrad’s shipyard in Orange County, Texas, this week. Capt Demske said this will operate on the Sabine River in Texas and into the US Gulf.

Assateague-class tugs were 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.

Assateague and DS-801 were completed in March 2018, while Chincoteague and DS-802 left the shipyard in August 2018. DS-803 will carry additional heating elements to aid asphalt transportation.

These tugs are driven by Cummins QSK60M Tier 3 engines, coupled to Reintjes WAF 873 gears with 7.087:1 reduction and turn 260-cm 4-blade bronze propellers mounted on 24 cm shafts. EJ Fields Machine Works supplied the shaft and rudders to the series.

Assateague-class tugs also have two Cummins QSB7-DM, 125-kW generators with a Cummins 60-kW emergency generator for onboard electrical power.

 


Information on green maritime operations and engines will be shared at Riviera Maritime Media's conference that tackles the challenges of ship emissions at the upcoming Americas Sulphur Cap Conference, in Houston, US, in March 

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