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Sunday, January 21, 2018

Prop News

Wesmar Wins ABS DP1 Approval

Wesmar announced that their Model V2-20NS Vortex dual prop all stainless steel bow thruster has been given ABS approval for dynamic positioning applications (DP1). The horsepower rating for the V2-20NS is 75 to 150, and the company anticipates similar approval soon for their V2-26 and V2-36 systems, which operate on vessels up to 350 HP. Wesmar’s polished stainless steel props are standard, and stainless steel seal with bearing carriers sync with the stainless steel casting. The counter rotating dual prop design, a Wesmar invention, provides up to 40% more thrust with the same tunnel size and with the same input power. (www.wesmar.com)

Navy Achieves New Propeller Milestone

The U.S. Navy has marked a critical milestone in ship research as it wrapped up a successful phase in the testing of a full-scale propeller for USS San Antonio amphibious transport dock ship. The tests verify a new compact design for the LPD-17 controllable pitch propeller meets the seven-year service life cycle requirements. The 17 million cycles completed show this new design exceeds requirements and the service life could be extended twofold. The Naval Sea Systems Command program could lead to a significant saving for the Navy in overhaul costs for the new propeller. The hub and blades, manufactured of nickel-aluminum-bronze and steel, constitute a unique design.

Wesmar to Attend WorkBoat Show

Photo Caption: A large Wesmar commercial stainless steel counter rotating dual prop bow thruster similar to what Wesmar will be showing at the WorkBoat Show Dec 3-5. This year, at the International Workboat Show, Wesmar will be displaying their ABS design approved DP 1 Model V2-20 NS Vortex dual prop all stainless steel bow thrusters and their Model V2-24 as well as Active Gyro Stabilizers at booth number #1441 in New Orleans Dec. 3-5. Wesmar’s counter rotating propeller design was developed to provide up to 40% more thrust with the same tunnel size and same input power.

WESMAR Thrusters ABS DP Approval

Photo courtesy WESMAR

WESMAR announced that two more of their all stainless steel bow thrusters have been given ABS Certificate of Design Assessment for dynamic positioning (DP) applications. WESMAR Models V2-24 and V2-26 Vortex dual prop all stainless steel bow thrusters have joined the V2-20NS system, which received the design approval rating earlier this year. The horsepower ratings for the V2-24 and V2-26 range from 175 to 225, for operation on vessels up to 225 hp. The coveted ABS rating clears…

Mid America Shipyards Delivers First Vessel

Photo courtesy Mid America Shipyards

Mid America Shipyards LLC out of Ft. Smith, Ark. announced that after opening its doors in December 2009 it has delivered its first vessel, a truckable tug boat, the Mary Ann, to the Chicago area. Currently Mid America Shipyards has contracts to build two more 660 hp vessels that will be delivered in April.

Inside Modutech Marine’s Work Boat Medium

(Photo courtesy of Modutech)

The U.S. Navy has some spectacular vessels, from submarines to high speed RIBs. They also have dedicated ports and support facilities worldwide. A practical reality of all of this is that the Navy requires efficient and handy boats to support the warhorses. To meet this requirement John Myers of the naval architect firm Hockema & Whalen and Associates have developed a 30 by 15-foot tug with a 5.5-foot draft. Currently the Navy has 24 of these tugs, designated Work Boat Medium, on order from Modutech Marine Inc. of Tacoma, Wash.

Propeller Milestone Achieved By U.S. Navy

The U.S. Navy's drive during the past decade to become more efficient on both the ship contracting and life cycle management sides has proven to be much more than mere talk. The "new" Navy is embodied in the current LPD-17 project, and U.S. Navy senior officers and engineers recently marked a critical milestone in ship research on January 6, 2000, wrapping up a successful phase in the testing of a full-scale propeller for the USS San Antonio (LPD-17) Class amphibious transport dock ship. The tests verify that a new compact design for the LPD-17 CPP meets the seven-year service life cycle requirements. The 17 million cycles completed at the ceremony show that this new design exceeds requirements and that the service life could be extended twofold.

Chinook Aluminum Cruiser Delivered

The William E. Munson Company delivered a 32 ft. Chinook welded aluminum cruiser to Ed Robinson's Diving Adventures. Powered by twin Volvo KAD43 diesels, coupled to Volvo dual prop drive legs, the USCG certified 15-passenger dive boat has a top speed of 45 mph light and 40 mph fully loaded. Outfitting includes port and starboard side dive doors, large stern dive platform with two flip out dive ladders, aluminum tank rack for 30 dive bottles, tropical style open-backed wheelhouse with sunroof, mini foc'sle with head, 50-gal., fresh water wash down system, 150-gal. fuel system and Fortress anchoring system. The William E. Munson Company delivered a 32 ft. Chinook welded aluminum cruiser to Ed Robinson's Diving Adventures.

Tidewater Building Two 145 ft. Crewboats at Swiftships

Working from a proven Swiftship design with modifications to meet their particular needs, Tidewater Marine has ordered a pair of 145 x 26 ft. crewboats from Swiftships, in Morgan City, La. With space for 150 passengers and accommodation for up to nine crew, the boats will also be capable of carrying 16,000 U.S. gallons of fuel, 19,500 gallons of fresh water, 375 gallons of lube oil and 275 gallons of waste oil. An additional 6,600 gallons of ballast tankage is included. Deck cargo capacities will be approximately 150 tons. Power for the boats will be provided by five 12-cylinder Cummins KTA38 M2 engines. Four of the engines, rated 1,350 hp at 1,950 rpm, will drive through Reintjes WAF 430/1SC 2.5:1 gears with propellers designed for maximum speed at designated deadweight.

Seacor Repowers Vessels

Conrad's aluminum manager Todd Babin shows the "tweaked" props. The 300-ton travel lift at Conrad Industries Morgan City facility is a major attraction to Gulf Coast crew boat operators. Shallow waters in the area add to the heavy usage that crewboats receive contributes to a steady demand for quick haul outs and timely below waterline repairs. The yards large upland area is another attraction as it provides ample storage space for vessels undergoing major overhauls. This latter is the case with a series of six vessels recently acquired by Seacor Marine as part of their larger take-over of the Seabulk fleet. The six crewboats were each powered by four electronically controlled 1100 hp two-cycle engines turning at 2100 RPM that were getting only about 6000 hours before requiring a rebuild.

No Oil Spoken Here: BP’s Shafts are Oil-Free

Safer than safe could be dubbed the term that sums up the design philosophy on four 185,000 dwt Alaskan-class tankers that will soon be carrying oil along the U.S. West Coast. Currently being built in San Diego, Calif. by NASSCO, the BP Shipping-owned vessels feature the latest innovations in safe-ship design, including Thordon COMPAC water-lubricated propeller shaft bearings. During the design phase of the vessels, BP was determined to leave no stone unturned in its quest to minimize the risk of oil leakage. This included building in multiple redundant systems, and eliminating the use of oil wherever possible. "The prop shaft is an area where, traditionally, some lubricating oil can leak into the sea," says Stan Taylor, technical manager for BP.

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. “It is the largest in WESMAR’s commercial line and brings more power, less noise and less vibration than competitive units.

Konrad, Cummins Propulsion Package Partnership

The complete package from Konrad and Cummins incorporates Konrad drives and Cummins engines.

Sterndrive specialist Konrad Marine formally entered a partnership with diesel engine manufacturer Cummins Marine to jointly offer a complete propulsion package to the commercial, military and recreational maritime markets, a partnershipo announced October 9 at the Workboat Show in New Orleans. The package combines Cummins’ new QSB 6.7L diesel engines (230-425 hp)and Konrad Series 600 sterndrives to present a full propulsion offering, ultimately providing customers with a simplified, tested option from a single source.

Push Boat for Sale

A river and bay push boat built for the U.S. Army Corps of Engineers has been posted for immediate sale.

McKeil Marine Sells Tug

McKeil Marine Ltd. of Hamilton, Ontario has sold its twin screw, 105' x 25' tug Offshore Supplier to Thompson Shipping Co., Ltd. The 910-bhp tug was originally built by Hike Metal Products in 1979 and powered with twin GM16V71's with fixed pitch props in kort nozzles. It was delivered with a fresh drydocking and will be repositioned from Canada to the Caribbean where she will immediately start work with the buyer's barge. Marcon acted as sole broker in the transaction.

Guido Perla Provides Design for Crowley Tugs

Guido Perla and Assoc., Inc., has recently completed contract design for Crowley Maritime Corp.'s subsidiary Vessel Management Services' series of three PRT Class (Prevention and Response) Tanker Assist/General Towing Z-Drive tugs. GPA is also furnishing complete detail modular construction engineering for the 140 ft. x 10,192 hp Caterpillar-powered PRT Class, which are currently under construction at Dakota Creek Industries in Anacortes, Wash. The vessels are designed as diesel powered twin Z-Drive propulsion tugboats, outfitted for tanker rescue, ocean towing, emergency oil spill response, fire fighting and harbor service. Propulsion is provided by two Caterpillar 3612B diesel engines, each rated 5,096 bhp @ 900 rpm, driving two Kamewa Aquamaster U.S.

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. shaft will be mounted a 66 x 54-in. five-blade prop from Padgett-Swan. Computer modelling has shown a gain of up to 1.5 knots with this combination and the five-blade props over four-blade props. Given the new boat's cargo capacities ? approximately 95,000 gallons of water and 90,000 of fuel ?

Tidewater Building Cummins-Powered Crew Boat at Breaux Brothers

Breaux Brothers Enterprises Inc of Loreauville, La. is building a 155 x 30-ft. crew boat for Tidewater Marine. The boat will have four KTA38 M2 main engines rated 1,350 hp @ 1,950 rpm for a total of 5,400 hp. The engines will turn 46 x 42-in. props through WVS 430/1 S.C. 2.458:1 marine gears. A maximum speed in excess of 24 knots with a 100 LT deadweight cargo is anticipated with a range of 1,415 nautical miles at 19 knots. Crew accommodation will be in five two-man staterooms and the vessel is certified to carry 72 people. Deck cargo will be up to 250 lt on the 90 x 26-ft. clear aft deck space. Tankage includes 25,765 gallons of ballast/fresh water, 17,035 gallons of fuel, 900 gallons of potable water and 330 gallons of lube oil.

40,000-hp Supertug Offered For Charter

Marcon International, Inc. of Coupeville, Wash., has been authorized by the Russian Navy to offer for longterm commercial bareboat charter the twin screw, ocean firefighting salvage tugs Fotiy Krylov and SB-408. The 24,480 bhp, 40,000 hp salvage tug 97.6m Fotiy Krylov (ex-Tsavliris Giant, SB-135) was designed in co-operation with Wijsmuller Engineering and is one of the largest, most powerful and sophisticated tugs in the international salvage fleet. She was originally built in 1989 at a reported cost of about $45 million by Hollming Oy of Rauma, Finland for the Russian Navy and has the reported capability of towing a laden tanker of up to 500,000 dwt.

WESMAR Bow Thruster on Oil Support Vessel

WESMAR (Western Marine Electronics) of Woodinville, Wa. has announced the installation of their ABS design approved bow thruster for dynamic positioning on the 175 ft FSV Gulf Fury, the newest and fastest oil support vessel for Gulf Fleet of Lafayette, Louisiana. Gulf Fury, joins a fleet of 17 other Gulf Fleet vessels. “She is our first total ABS classed DPS-1 vessel. With this classification and with WESMAR’s V2-20 ABS design approved bow thruster, the Gulf Fury is viewed highly in the industry…

Wesmar Thrusters at Work Boat Show

“Wesmar thrusters are built for the toughest of sea conditions to meet the requirements of work boats around the world. Whether working in the oil fields or elsewhere, the demands to turn in tight quarters, hold position, and dock in challenging environments are standard assignments for our powerful thruster systems,” said WESMAR Vice President Bob Sentz announcing his company’s attendance at the International Work Boat Show October 9-11 in New Orleans, LA. “We will display one of our commercial bow thrusters in the Donovan Marine Booth (#2218), our dealer in the Gulf,” said Sentz.

WESMAR Delivers Thruster to another Fireboat

The "super pumper" fireboat is to enhance San Francisco’s marine fire fighting and response capabilities on water including high-volume water pumping, firefighting, rescue, emergency medical service and patrol in the waters of San Francisco and San Pablo Bays and the Pacific Ocean within five miles of shore and the adjoining inland waterways.

WESMAR (Western Marine Electronics) delivered one of its bow thruster systems to another fireboat this month. This systems will be installed on a ‘super pumper’ for the city of San Francisco. The new fireboat is being built by Vigor Fab, Seattle, a subsidiary of Vigor Industrial, and is scheduled for delivery next year. Per specifications her ability to maneuver and dock in tight situations and to hold steady during fire fighting and rescue operations will be facilitated by WESMAR’s Model V2-20 NS 100 HP stainless steel, dual prop, counter-rotating bow thruster system.

New Cat Engines Offer Fuel Savings, Low Emissions for OSVs

Caterpillar has begun shipment of its new 3500 high displacement engines - units which offer up to 13 percent more power and a seven percent improvement in power-to-weight ratios and a seven percent improvement in fuel economy. The latest OSV to go into the Simon Møkster Shipping AS fleet, Stril Power features a unique four-Caterpillar engine powered diesel electric propulsion system. A new Caterpillar engine-powered diesel electric propulsion system is being touted as delivering fuel savings between 30 and 50 percent. This new system has been recently installed on two new OSVs: Olympic Princess, built by Brattvaag Skipsverft AS in Norway; and Stril Supplier, built by YVC Ysselwarf in Rotterdam.

Maritime Reporter Magazine Cover Dec 2017 - The Great Ships of 2017

Maritime Reporter and Engineering News’ first edition was published in New York City in 1883 and became our flagship publication in 1939. It is the world’s largest audited circulation magazine serving the global maritime industry, delivering more insightful editorial and news to more industry decision makers than any other source.

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