Great Lakes' Biggest Dual-Mode ITB Begins Service

Monday, October 02, 2000
One of the most labor- and fuel-efficient bulk material carriers on the Great Lakes entered service in June 2000. The self-unloading barge Great Lakes Trader is owned by Great Lakes Marine Leasing, Portland, Ore., and operated by VanEnkevort Tug and Barge, Bark River, Mich. The 740 x 78 ft. (226 x 24 m) Trader is the largest vessel capable of fitting through the St. Lawrence Seaway locks. Combined with the 10,200-bhp (7,600 bkW) tug Joyce L. VanEnkevort, the new integrated tug/barge (ITB) unit is the biggest dual-mode ITB on the Great Lakes.

The 39,600 long ton (40,234 metric ton) capacity Trader was designed by a team of engineers directed by naval architect Joe Fischer, president of Bay Engineering, Inc., Sturgeon Bay, Wisc. Halter Marine built the vessel in two halves at their Pearlington, Miss., facility and finished it at their Gulf Repair Yard in New Orleans, La.

The self-unloading design incorporates internal gravity-fed gates leading to a hydraulically driven single-belt Ems-Tec conveyor system capable of unloading 6,000 long tons (6,096 metric tons) of iron ore pellets, coal, or crushed limestone per hour.

This efficient ship unloading system receives power from seven Cat 3406C engines rated 462 bhp (345 bkW) at 1,800 rpm. The 3406s drive Rexroth and Vickers multiple pump hydraulic drive units. This arrangement, with multiple engines rather than one or two larger engines, allows greater flexibility in the barge's operation. Engine service is easier to coordinate, and the crew operates only as many engines as are needed.

Barge electrical power is provided by a Cat 3406C gen set rated 260 ekW at 1,800 rpm. Cat Dealer Ohio Engine Power, Cleveland, Ohio, provided all pump engines for Great Lakes Trader, and Cat Dealer FABCO Engine Systems, Green Bay, Wisc., provided the generator set.

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Legal

ITIC Measures against Ebola

The International Transport Intermediaries Club (ITIC) has issued the following general advice related to the outbreak of Ebola. Vessels that have recently

ClassNK's Guidelines for Exhaust Gas Cleaning Systems

Leading classification society ClassNK announced that it has released Guidelines for Exhaust Gas Cleaning Systems. These guidelines cover class safety requirements

China, Vietnam Pledge Maritime Cooperation

China and Vietnam have agreed to "address and control" maritime disputes, state media said on Friday, as differences over the potentially energy-rich South China

 
 
Maritime Contracts Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1909 sec (5 req/sec)