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Stainless Steel Props

Kvichak Delivers 26-ft Push Boat to Seattle City Light

Photo courtesy Kvichak Marine

Kvichak Marine, Industries, Inc. recently constructed and delivered a 25.7 ft push boat to Seattle City Light  for operation with the service barge at the Diablo Dam in the North Cascades.  This Kvichak Marine design is constructed of marine grade aluminum alloy plate and extrusions.  Two vertical push knees are located at the bow. The knees are padded by six inch D-section rubber.  A 1,500 lb davit with manual winch is mounted on the stern.    The push boat is powered by twin John Deere 330 hp turbo charged diesel engines with stainless steel props in enclosed nozzles, allowing for speed of eight knots while pushing the barge.   Length, o.a 25.7 ft Beam, molded 14 ft Draft, ready for service 3.4 ft Weight, full load 25,102 lbs Crew 3 Fuel 480 gal Bollard pull 10,280 lbs Speed, pushing barge 8 kts  


Seattle City Light Contract for Kvichak Marine

Seattle City Light has awarded a contract to Kvichak Marine Industries to build a 25.8-ft push boat designed by Kvichak Marine to operate with the service barge at the Diablo Dam in the North Cascades. The hull and superstructure will be constructed of marine grade aluminum alloy plate and extrusions.  Two vertical push knees will be located at the bow.  The knees will be padded by 6” D-section rubber.  A 1,500 lb davit with manual winch will be mounted on the stern


Military, State Orders Buoy Patrol Boat Market

By Larry Pearson Even before the events of 9/11, the patrol boat market for the Navy, Coast Guard and individual state law enforcement departments was very active. For example, in the 1980's Bollinger built 49 Island Class Patrol boats and 10 years later built 50 smaller patrol vessels also for the Coast Guard. These assets were immediately deployable to counter terrorism threats after 9/11. But with the entire nation on alert


WESMAR Displaying their Biggest at WorkBoat Show

Image courtesy WESMAR

WESMAR will be displaying the largest bow thruster they produce at the annual International WorkBoat Show in New Orleans December 1-3, and Bob Sentz, Vice President of WESMAR’s Mechanical Division, said it is the largest system his division has ever sent to a trade show.  “This stainless steel 48-inch, 4-blade NiBrAl prop counter-rotating bow thruster system will be a head turner for many reasons,” said Sentz


Lugger Tug from Alabama Yard

Photo courtesy of April Harrel & Rodriguez Boat Builders

The “Lugger” designation traces back to days when a small handy coastal vessel often carried lug-rigged sails. A modern day lugger, as used on the US Gulf of Mexico coast, is still a handy boat for working in near shore waters. On a version of the tug, designed by and currently finishing up at Rodriguez Boat Builders, a pair of Cummins Tier 2 compliant QSK19-M diesels turning four-blade stainless steel props has replaced the lugsails for propulsion.  


ClassNK Issues New Welding Guidelines

NK_Hardhat web.jpg

Classification society ClassNK (Chairman and President: Noboru Ueda) announced that it has released new Guidelines on the Welding of Duplex Stainless Steels. The guidelines have been developed to help shipyards safely and effectively make use of new duplex steels that are increasingly being used in the construction of cargo tanks for chemical carriers. As part of its work to support the safe construction of ships, ClassNK has released the guidelines for free via its website.


AMT Marine Building Fast Utility Boat at Hope Services

Andy Martin of AMT Marine will take delivery this May of a 136 x 34 x 12-ft. mini-supply boat from Hope Services of Dulac, La. The new boat, designed by Frank Basil's Entech and Associates of Houma, will be powered by a pair of Cummins V-12 KTA38 M0 main engines rated for 850 hp each at 1,800 rpm and driving through Twin Disc MG5301 gears with a ratio of 5.96:1. It's what this combination is driving that makes the story. On the end of each stainless steel six-in


New Stainless Steel Chemical Tanker Platform

Principal Maritime Management LLC of Southport, Connecticut, a shipping company owned by affiliates of Apollo Global Management LLC, has formed a new platform in the stainless steel chemical shipping sector. Additionally, Princimar Chemical Carriers has acquired its initial three stainless steel chemical tankers, all of which were purchased from existing owners and are currently in service.   Princimar Chemical Carriers is focused primarily on acquiring stainless steel chemical


PMM Dips Into Chemical Ship Management Sector

Principal Maritime Management LLC (PMM) of Southport, Connecticut, a shipping company owned by affiliates of Apollo Global Management LLC, informs of its new business in the stainless steel chemical shipping sector, through Princimar tankship acquisitions. PMM explain that Princimar Chemical Carriers (Princimar) acquired its initial three stainless steel chemical tankers, from existing owners.  Princimar is focused primarily on acquiring stainless steel chemical tankers which


Macro Sensors Gauge Tank Volume Changes

This diagram shows the LVDT level sensor attached to the side of a tank using a flat-hook assembly. The high-permeability core follows the position of the stainless-steel float. The LVDT electronics sense the core position using magnetic induction. Output is a 4 to 20-mA instrumentation current loop corresponding to the position of the core in the LVDT body.

Configured with a float, Macro Sensors HSIR Series LVDT Linear Position Transmitters are serving as level sensors to measure liquid level changes from a few inches to several feet in gauging tank level volumes. In this LVDT level sensor configuration, a stainless-steel float coupled to a nonmagnetic stainless-steel rod is attached to the high-permeability, armature core of the LVDT. The 4 to 20-mA loop-powered LVDT position transmitter senses the position of the core and, therefore


More Sanmar Newbuilds Cross the Atlantic

Photo: Sanmar

Svitzer Americas’ newest vessels Svitzer Monte Cristi and Svitzer Catuan have been delivered by Turkish tug builder Sanmar. The boats, which will be operated in the Dominican Republic, are Ramparts 2400 SX class tugs, designed by Robert Allan Limited exclusively for Sanmar


Ken Konrad: A Driven Innovator

Ken Konrad and his wife Kathy decided to diversify from their steel mill operations in the early 1990s and Konrad Marine was born. (Photo: Konrad)

At his core Ken Konrad is an innovator and engineer, looking at problems and seeing solutions. We spent a day at Konrad’s headquarters in Hudson, Wis., for insights on what makes the “Stern Drive Specialist.”   Walk around Konrad’s manufacturing and testing facility


Oscar B: Power in the River Currants

Oscar B (Photo: Cummins)

Since 1925 there has been some form of car ferry crossing of the lower Columbia River from Puget Island on the Washington side to Westport Slough on the Oregon side. In 1959 Wahkiakum County took over operation of the ferry and in 1962 had a steel-hulled ferry, named for the county


Shallow-Draft Yukon River Tender

Photos courtesy of Haig Brown/Cummins

 “If it works well, then why change it?” might have been the idea of the owner of a new Yukon River salmon tender building at WCT Marine’s shipyard at Tongue Point on the Columbia River near Astoria, Oregon. Owner R. Bodey had Tullio Celano draw up a set of plans from a


Iron: Implications in Shipping

Graph: Clarksons Research

Clarksons Research says that iron-based materials such as steel are used incredibly widely in the world’s industries today, with clear implications for shipping too.   The versatility and strength of steel has made it today’s most important construction material, with 1


China Iron Ore Imports Rise in September

Chinese iron ore imports rose in September, according to Reuters data, as its steelmakers ramped up output in the face of global trade tensions about the country's steel exports.   Thomson Reuters Supply Chain and Commodity Forecasts data showed 82


New Lobster Boat Under Construction in North Carolina

(Image: Custom Steel Boats)

Custom Steel Boats, Inc. of Merritt, N.C., in collaboration with Ted & Todd’s Marine of Beaufort, N.C., announced a new construction project. Custom Steel Boats is building a 70-foot steel hull lobster boat, Two Dukes, for Captain Eric, Inc of Seaville, N.J


Electric Motors for Marine Applications

A waterproof motor with stainless steel exterior (Photo: Empire Magnetics)

Empire Magnetics President Richard Halstead discusses the critical considerations necessary for engines operating in Arctic waters.    A large number of vessels sail in more than one ocean, from warmer seas to arctic waters, so motors for marine applications must be versatile enough to


Smith Berger Tow Pins Lead the Way

Smith Berger Marine, Inc. said it has been selected by Edison Chouest Offshore to design and manufacture the Tow Pin Stern Roller units required on its nine new vessels, including five escort tugs and four docking tugs.   Edison Chouest is building the new tugs in order to execute a 10-year


Navig8 Tankers Add New Vessel

Photo NAVIG8 Chemical Tankers

Navig8 Chemical Tankers Inc. an international shipping company focused on the transportation of chemicals, today announced that it has taken delivery of the Navig8 Stellar, a 25,000 DWT stainless steel chemical tanker from Kitanihon Shipbuilding Co., Ltd.


Odffjell to Build Record Size Stainless Steel Chem Tankers

Kristian Mørch CEO Odfjell SE (Photo: Odfjell SE)

Odfjell has ordered four chemical tankers (with options for an additional four) with stainless steel cargo tanks from China Shipbuilding Trading CO., Ltd. and Hudong-Zhonghua Shipbuilding (Group) CO., Ltd. The ships cost $60m each.   The 49,000 dwt ships, with a cargo capacity at 54,600 cbm


Mud Cat MFD-1000 Dredges Lake for Residential Development

SouthBay is a spring fed, 53 acre recreational lake with 3 miles of shoreline and boat access.

 Ellicott Dredge Technologies (EDT) has been successful in launching a Mud Cat Multi-Function Dredge (MFD) at the SouthBay Residential Development in Bismarck, North Dakota. The dredge will remove 20,000 cubic yards (15,290 m3) of sand and clay from a private residential lake where developers


New Milestones for America’s Newest Tall Ship

Photo: OHPRI

The U.S. Coast Guard has issued a stability letter to America’s newest tall ship for operation on exposed waters, confirming that SSV Oliver Hazard Perry exceeds their most stringent Sailing School Vessel standards for stability. This assures that the vessel is on track to begin offshore


New Watermaker Tailored to O&G Operations

Neptune+ OG (Image: FCI Watermakers)

FCI Watermakers said its new Neptune+ OG is designed and built specifically for the severe conditions of offshore oil and gas operations, whether on a platform, tanker, carrier or PSV.   The unit will make from 3,400 to 10,000 gallons of pure, fresh water a day


ASIS Boats Delivers High-speed Passenger RIB

Photo: ASIS Boats

Rigid Inflatable Boat (RIB) builder ASIS Boats has built and delivered the first of a fleet of 12-meter all weather passenger transport professional RIBs.   The intended use of these RIB Boats will be to transport safely up to 23 passengers from main land to islands, daily and continuously






 
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