Trawling for Scrap Metal

by Alan Haig-Brown
Thursday, May 26, 2011
Drawings courtesy of Rodriguez Boat Builders

It looks like a typical Gulf of Mexico double-rigged shrimp trawler. However at 110 by 28-ft she will be bigger than most shrimpers. Like her sister, the Poncho, delivered in 2009, the new vessel is also built with robust framing and extra power. Like the Poncho, the as yet unnamed vessel, will be trawling for scrap metal, old tires and any other scrap is at the site of a decommissioned oil rig.  

The work, mandated by U.S. Mineral Management Services in 1990, requires the site to be cleaned to the point that it can be safely trawled by typical Gulf shrimp gear.  To get the site to this level of cleanliness the vessel owners, B & J Martin, use their proprietary Gorilla Net. The gear employs a weave of 3/4-inch combination cable at the opening with a body made of twine five-times the strength of a standard trawl net. The boat tows two of these 80-ft nets each capable of recovering up to six tons of waste.
 
To manage a “catch” of this magnitude requires a lot of power. For this work, a pair of Cummins K38-M EPA Tier 2 certified engines turning into Twin Disc #MGX-5321 gears, with 5.96:1 ratios, power the boat. As installed in the new vessel these mechanical tier 2 engines are each rated for 850 hp at 1800 RPM. Deck winches include a CME Model 2FH-505-038-579 Double Drum Hydraulic as well as a CME Model 1A11-100A3-1-00 Single Drum Hydraulic Anchor winch.
 
The boat, designed by Joseph Rodriguez and built by Rodriguez Boat Builders, has a 3,000 cubic foot hold capacity. Tankage is provided for 30,000 gallons of fuel in seven separate tanks. Another three tanks hold up to 8,000 gallons of water, while two more tanks hold up to 750 gallons of lube oil.
 
Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

ClassNK Head Attends KOTC Delivery Ceremony

Noboru Ueda, Chairman and President of ClassNK attended the delivery ceremony for the M/T Al Yarmouk, constructed at Daewoo Shipbuilding & Marine Engineering Co.

Vard Orders Parat Electric Steam & Hot Water Boilers

During the last month, PARAT Halvorsen AS has collected four new boiler plant orders from the Vard Group and their multipurpose platform ships of Vard 1 08 design.

N-KOM Lays Keel for Qatar’s First Liftboat

Nakilat-Keppel Offshore & Marine (N-KOM) has achieved another milestone with the keel laying of its first liftboat newbuild project, awarded in July 2014 by long-time

Vessels

Vard Orders Parat Electric Steam & Hot Water Boilers

During the last month, PARAT Halvorsen AS has collected four new boiler plant orders from the Vard Group and their multipurpose platform ships of Vard 1 08 design.

Imtech Marine Nav/Com Partner for Groen OSV

The first newbuild ship in a series of three offshore support vessels (OSVS) for shipowner Groen (Scheveningen), 7-Oceans, was delivered at Damen Maaskant Shipyards in Stellendam,

Chloropac Anti-Fouling Selected for Largest Decommissioning Vessel

Allseas Group S.A., a global offshore pipe installation and subsea construction company, has selected Evoqua Water Technologies’ Chloropac electrochlorination system

 
 
Maritime Careers / Shipboard Positions Naval Architecture Navigation Pipelines Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction 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: 0.0042 sec (241 req/sec)