Page 47: of Marine News Magazine (January 2014)

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Kvichak Marine Industries, Inc. has been awarded a contract by Norton Sound Economic Development Cor- poration (NSEDC) to build an all-aluminum 66’ Shal- low Draft Tender to be used for multiple fi sheries in and around Norton Sound, AK. Designed by Kvichak Marine, the 66’ x 25’ tender will be powered by twin Cummins

QSM11 marine diesel engines rated for 450 BHP at 2100

RPM. The engines are coupled to ZF 360 transmissions that drive NiBrAl 4-blade propellers.

Kvichak to Build 66’ Shallow Draft Tender

Scheduled Delivery: Spring 2014 Displacement (heavy): 230,000lbs Displacement (light) 130,000 lbs

Length overall: 67’ - 4” Northern Lights 99 & 40 kW Gensets 500 gallon fresh water capacity

Beam overall: 25’ Transvac 3510 Fish Pump System Product Capacity: 1740 Cu Ft total

Loaded Draft: 4’ - 6” 3,000 gallon diesel fuel tank Effer 220M S2 crane (2) Two-man staterooms Full galley 36 Ton dual IMS RSW System

The 66’ Shallow Draft Tender at a glance …

A feasibility study around a hybrid powertrain SWATH, commissioned this year by CTruk, has given the company further impetus in its ongoing development of a hybrid electric offshore wind support vessel design. The study was based on the CTruk CWhisper SWATH, a 20m craft fi t- ted with twin Cummins QSM-11 marine diesel engines and Rolls-Royce Kamewa FF41 waterjets. The feasibility report concluded that the implementation of a parallel hy- brid solution would result in substantial operational cost savings on this particular vessel, an attractive prospect cou- pled with the already well-documented advantages of the

SWATH hull form in offshore wind operations. Marine craft in the offshore wind support sector typically have two major transit periods each day, with the rest of their time at sea spent idling or slow maneuvering with the occasional high speed peak. This usage profi le makes OWSVs ideally suited to a hybrid confi guration. The introduction of an electric motor to handle the load during low power de- mand periods allows the boat’s engines to be turned off or run as generators at a more optimized power rating. The unique belt drive transmission system currently being fi t- ted on CTruk’s latest SWATH build will be included on all subsequent CTruk SWATH vessels, future-proofi ng these craft by allowing for the retrofi tting of a parallel hybrid solution.

CTruk Looks Ahead www.marinelink.com MN 47

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