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Raina O Clark News

02 Aug 2012

Quad Propeller Propulsion:

A view of the stern of the R/V Sea Scout and its four propellers during the build process. Photo courtesy All American Marine.

In 2011, Teknicraft Design of New Zealand designed and engineered what is believed to be one of the first quad propeller propulsion systems for a catamaran hull in the U.S. Designed for a newbuild, 134-foot research vessel recently delivered to C & C Technologies, Inc. of Lafayette, LA, the propulsion system had to accommodate many multi-missioned tasks. These will include shallow water hydrographic surveys, deep water offshore surveys and AUV operations. “It’s been about a three or four year story for me…

25 Jul 2012

Quad Propeller Propulsion

A view of the stern of the R/V Sea Scout and its four propellers during the build process. Photo courtesy All American Marine.

A New Option for Catamaran Workboats. In 2011, Teknicraft Design of New Zealand designed and engineered what is believed to be one of the first quad propeller propulsion systems for a catamaran hull in the U.S. Designed for a newbuild, 134-foot research vessel recently delivered to C & C Technologies, Inc. of Lafayette, LA, the propulsion system had to accommodate many multi-missioned tasks. These will include shallow water hydrographic surveys, deep water offshore surveys and AUV operations.

30 May 2012

A Regulatory Seascape

Raina Clark

Regulation shapes the workboat industry perhaps more than any other single factor. This regulatory seascape includes a myriad of onerous and ever-changing rules. A ‘SITREP’ on those choppy waters is therefore in order. Last December, the Coast Guard closed the public comment period following its Notice of Proposed Rulemaking (NPRM) requiring nearly all towing vessels to obtain Certificates of Inspection under Subchapter M of CFR 46. The Coast Guard’s Towing Vessel National Center of Expertise (NCE) estimates that there are 5,800 U.S.

08 Sep 2011

WISTA at Seattle Maritime Academy: Sept. 23

Women’s Maritime Shipping Group Meets at Seattle Maritime Academy: Sept. 23; WISTA USA Pacific Northwest Visits Training Vessel E.L. Bartlett. The Women’s International Shipping & Trading Association (WISTA) USA Pacific Northwest Chapter is gathering aboard Seattle Maritime Academy’s Training Vessel, E.L. Bartlett, on Sept. 23 at 3:00 p.m. Following a presentation on the academy’s programs and graduate placement, the WISTA USA Pacific Northwest Chapter will convene its quarterly business meeting. All are welcome.

09 Sep 2008

Forget the Way it’s Been Done

Bridge design by Marine Technology.

By Raina O. Several years ago, Jan Mikalsen was living on the west coast of Norway, contemplating his next move after the closing of his Kongsberg Maritime office. While Kongsberg consolidated its business to the opposite side of the country, Mikalsen took stock of his strengths. He knew dynamic positioning systems (DPS), a software application designed mostly for offshore service vessels. He also knew there was room for improvement in the world's DP-systems. Mikalsen, who had worked for Kongsberg Maritime since 1973, was soon to become stiff competition for his former company.