A New Standard of Quiet

Thursday, December 08, 2005
Institutions through out North America are paying a lot of attention to the University of Delaware’s new research vessel the Hugh R. Sharpe recently delivered from Dakota Creek Industries of Anacortes Washington. (www.dakotacreek.com )

The vessel is fitted with retractable transducer pod, articulating stern gantry, wet lab, dry lab, forward gear deployment boom and CTD handling system. It incorporates in one vessel many of the most sought after features found on scientific research vessels around the world. But it is the propulsion system that is setting the new standard in American research vessels.

The 146x32-foot (44.5x9.75-meter) diesel electric vessel is powered by four Cummins KTA19 -D(M1)-powered electric generators. The generators power two 483 kw, 600v dc propulsion motors mounted to a pair of Schottel Z-drive stern-mounted propulsion units. Although the vessel has a 12-knot cruising speed it can be operated in “quiet mode” at eight knots. Shutting down the two outboard generator sets and using only the two middle sets accomplish this quiet mode. While all four engines have Christie and Grey (www.christiegrey.com ) resilient mounts, the two inboard engines are also mounted on a 9275-pound floating deck that is also resiliently mounted. In addition to the Cummins-powered “quiet mode” gen sets, the vessels contains extensive hull insulation, dampening tiles and custom built piping isolation hangers have been incorporated to prevent radiated hull noise, and to limit sound pressure levels within the vessel. “This has been my biggest challenge since I worked on submarines,” said Dakota Creek Industries’ project engineer Elwood Ide, going on to explain that the resilient mounting and sound dampening systems on the vessel are the commercial equivalent of what is put onto modern submarines. Even the bow thruster is resiliently mounted.

Tankage includes 2,320 gallons (8.78 m3) for water, 13,590 gallons (51.44 m3) for fuel, 375 gallons (1,420 liters) for lube oil, 635 gallons (2,366 liters) for dirty oil, 725 gallons (2,744 liters) for oily water, 834 gallons (3,157 liters) for black water and 834 gallons (3,157 liters) for grey water. Aft of the engine room and forward of the Z-drive room is a winch room that will accommodate two winches leaving the main deck clear or with space for containers to be installed. The large wheelhouse includes an aft facing control center, communication console and a desk for research computers in addition to a comprehensive set of navigational aids.

Accommodation is provided for 8 to 10 crewmembers, up to 12 live aboard scientists and up to 30-day trip scientists. The vessel is load lined and will carry a stability letter for unrestricted Ocean Service as an oceanographic research vessel. It is being delivered to the east coast by heavy lift ship through the Panama to off load in Florida in December.

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter January 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Container Ships

Grounded Giant Chinese Boxship Freed

One of the world's largest container ships has been freed from a mud bank after running aground almost a week ago near Germany's largest port of Hamburg, German authorities said on Tuesday.

EU Pulls Plug on Back-Up Nav System

A British-led initiative to create a back-up to satellite navigation systems for ships has been pulled after failing to garner interest from other European countries,

CSCL Indian Ocean Refloated

On Tuesday, February 9 at around 3am, local time, the containership CSCL Indian Ocean has been able continue her voyage to the Port of Hamburg. In a joint operation,

Vessels

Noncompliant Cargo Ship Banned from Australia

The 86-meter general cargo ship Noah Satu has been prohibited from entering or using any Australian ports for the second time in less than 12 months, following another round of safety,

First Damen Tug for Fratelli Neri

Fratelli Neri S.p.A has taken delivery of a Damen ASD Tug 3212. The new vessel, called Luisa Neri, was handed over from Damen Maaskant Shipyards Stellendam in the Netherlands, on 25 January 2016.

Wärtsilä's' BWMS for New Crane Ship Design

A new crane ship designed by Netherlands based Royal IHC, a global leader in offshore, dredging and mining vessels, will feature the Wärtsilä Aquarius UV Ballast Water Management System (BWMS).

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Pipelines Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | 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: 0.0836 sec (12 req/sec)