DNV Type Approved Anchor Winch for the Arctic Prowler

By Eric Haun
Wednesday, July 30, 2014
JK Fabrication’s DNV Type-Approved 40-30-3000 Anchor Winch

JK Fabrication has landed DNV certification for its 40-30-3000-DNV series Anchor Winch. Culminating a two-year process, JK’s C-series winch was at last awarded DNV Type Approval in March—the first time ever for an anchor winch in the U.S., the manufacturer said.

Conceived by JK’s founder, Jim Kreider, the anchor winch was installed aboard the F/V Arctic Prowler, a longliner recently built in Seattle. The winch accommodates 950 ft of 1 1/8” wire rope and a single shot (90 ft) of 1 3/16” Grade 2 stud-link chain, developing 33,400 lbs line pull bare drum, for an anchor weighing as much as 3,200 lbs. There is also an independent warping head with 16,000 lbs. line pull. Retrieval speeds are 23 FPM bare drum, and 50 FPM full-drum. Among many complications, DNV inspectors insisted on a very rigorous pull-test for Type Approval—and the test in fact inadvertently revealed an anchor winch far stronger than even Kreider had foreseen.

“We were told that the winch would have to withstand a 92,400-lb pull test against the positive dog mechanism. Imagine our surprise when the winch in fact withstood a 138,000-lb pull test, which parted the 1 1/8” wire but did not damage the winch,” Kreider said. “Naval architect Bruce Culver estimates the winch could withstand 230,000 lbs.”

The C-series winch has a variety of technical features that ensure a working lifetime of reliable use. There is double-gear reduction for the DT White hydraulic motor, and a three-position maximized-equipped Bi-Directional control valve that provides steady control for hauling and setting. A unique JK design feature is a common enclosed oil bath for chain, brake, hydraulic motor and clutch. Compact in design, the winch is just 39” high by 38” deep, with a width of 41” (64” with motor protrusion). Noting that the winch weighs in at just 3800 lbs, Kreider remarked, “Winch manufacturers today must achieve the same or better performance criteria, while capturing weight and footprint reduction on deck.”

“The Arctic Prowler order is a great honor, since the vessel as a whole has many state-of-the-art approaches that could well set the standard for new longliners in the years to come,” Kreider said. “Given that this is a first-ever DNV Type-Approved product, we fully expect to see other orders, including those outside the fishing industry.” JK said it has seen expansion into the workboat and government research fleet sectors, especially in the last decade.

Well-known among the Seattle-based fishing fleet working Alaska and the West Coast, JK Fabrication absorbed key staff and Intellectual Property from Nordic Machine in 2002. Thus JK’s arsenal of designs includes the entire Nordic Machinery line, long considered the state-of-the-art for a range of line haulers, utility winches, rollers and other deck machinery, some of them dating all the way back to the 1940s. JK now manufactures in galvanized and stainless steel, as well as aluminum for smaller boat applications, including yachts.

jkfabrication.com
 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

On USCG Anniversary, Gov. McAuliffe Urges Hurricane Preparedness

Gov. Terry McAuliffe encouraged Virginians to get ready for hurricane season and provided an update on the commonwealth’s preparations Friday at a press conference

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

WKCTC to Host Open House for ILM Institute

West Kentucky Community and Technical College will host an open house and ribbon cutting for the Inland Logistics and Marine Institute August 10 from 4 ­– 6 p.

News

On USCG Anniversary, Gov. McAuliffe Urges Hurricane Preparedness

Gov. Terry McAuliffe encouraged Virginians to get ready for hurricane season and provided an update on the commonwealth’s preparations Friday at a press conference

Diana Shipping Nets 2Q Loss

Diana Shipping Inc. today reported a net loss of $14.1 million and net loss attributed to common stockholders of $15.5 million for the second quarter of 2015, compared to net loss of $5.

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

Marine Equipment

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

Thordon Bearings Secures AK Ferry Contract

Thordon Bearings has received an order to supply its COMPAC system to two Alaska Ferry newbuilds under construction at the Vigor Industrial shipyard in Ketchikan, Alaska.

UK Navy Chooses Effer Crane Again

Cranes manufacturer Effer informs its marine crane has recently been installed aboard the U.K. Royal Navy’s patrol vessel HMS Mersey.   The new 5s 275M crane,

Deck Machinery

UK Navy Chooses Effer Crane Again

Cranes manufacturer Effer informs its marine crane has recently been installed aboard the U.K. Royal Navy’s patrol vessel HMS Mersey.   The new 5s 275M crane,

Coxreels Introduces Three-way Brake for 1600 Series

Hose, cord and cable reel manufacturer Coxreels announced the addition of an optional accessory to improve efficiency and safety of its 1600 Series reel, adding

Eastern Launches Second MPSV for Hornbeck

Eastern Shipbuilding Group, Inc. has launched the second of two 302’x76’x26’ multipurpose service vessels in the HOSMPSV 310ES series for Hornbeck Offshore Services, LLC.

Classification Societies

ClassNK Releases Guidelines for CNG Carriers

Classification society ClassNK has released its Guidelines for Compressed Natural Gas (CNG) Carriers.   Global economic and population growth is bringing about

INTERSCHALT VDR Earns CCS Certification

INTERSCHALT maritime systems AG, the provider of maritime software, services and systems for navigation and communications systems (NavCom) and manufacturer of Voyage Data Recorder (VDR) systems,

ABS Grants AIP for Jensen’s LNG ATB Design

A Jensen Maritime-designed, liquefied natural gas (LNG)-bunkering articulated tug-barge (ATB) has been granted approval in principle (AIP) by classification society American Bureau of Shipping (ABS).

 
 
Maritime Contracts Naval Architecture Navigation Pipelines Pod Propulsion Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction 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: 0.3410 sec (3 req/sec)