Stainless Steel Shafts News

Robert Allan Ltd. has delivered a design of two unique fire-floats to Khulna Shipyard Ltd in Bangladesh. The boats will measure 18.9 m x 5.3 m with a special hard chine semi-displacement hull designed for river service and fitted with twin open style skegs for debris protection. The all aluminum hulls will be powered by two 560 kW 6135SFM85 John Deere main engines for a speed of 20 knots. Reduction gears will be Reintjes WAF 244 with 2.5:1 reduction ratio driving stainless steel shafts and bronze propellers.

Canadian company Thordon Bearings has notched up another success story for a customer in the demanding offshore sector, with a bearing and seal installation in “perfect condition” after over three years of operation.Global Tiger, operated by UAE-based Global Marine Co is a 42m (138ft) crew/supply vessel currently in service in the Middle East. It is one of a pair of all-aluminium crewboats built by Grandweld of Dubai in 2015/2016. The vessel, with 83-person capacity, is powered by a triple-screw Caterpillar propulsion plant…

Gökçay, the first RApport 1600-SX tug, was run through its paces by her builders, Sanmar Shipyards, in late May and showed excellent performance in all respects. The new steel twin screw harbor tug is designed for high performance at a competitive cost. It has increased beam for better stability and excellent visibility in all directions from the compact wheelhouse. Conventional twin screw propulsion with twin nozzles and four rudders provide a bollard pull of 21 tons and a top speed of 11.5 knots with excellent maneuverability.

A newly built pilot boat Kara Yusuf, named after the owner’s grandfather, went into service on March 4, 2017 in Turkey. The boat will provide pilot transfer service in the southwest region of the Marmara Sea. Designed by Robert Allan Ltd., of Vancouver Canada, the boat was built by ICDAS Shipyard in Turkey for their own use as well as for marketing to the pilotage industry. Designated as the RAlly 1600 class, the 16 m boat is constructed with a steel hull and aluminum deckhouse.

Located in the Southwest corner of Iceland beside the Atlantic Ocean is one of Stofnfiskur’s salmon broodstockfarms. This farm located in a place called Vogar was originally established in 1986 produces Salmon Ova which are sold to domestic and International hatcheries for fish farming. The facility houses 25,000m3 tanks in 10 massive sheds used for the breeding of salmon and production of salmon ova. Each tank holds tens of thousands of liters of water delivered constantly by an army of centrifugal pumps.

Steve Miguez is adding a fourth crew boat to his Iberia Crewboats fleet. Like the Mr. Blake, Mr. Ridge and Lady Glenda that he already operates, the Lady Marie is being built across the road from his New Iberia home at the Neuville Boat Works. This is the thirteenth boat that Steve has had built at the yard since he started in the business as a 21-year-old in 1975. Like the last one that he had built there, it is 150 ft. over all with a 28-ft. beam. Tankage and most other aspects of the new vessel are the same. The major departure from earlier vessel is to be found in the engine room. The earlier boat was powered by five of Cummins six-cylinder KTA19 M4 engines rated at 700 hp each for a total of 3,500 hp.

Rodriguez Boat Builders, of Bayou LaBatre, Ala., will deliver one more of their popular lugger tugs to Central Boat Rental of Morgan City, La., at the end October. Designed for the specialized tasks of supporting shallow water oil wells in the Gulf of Mexico they are as much supply boat as tug. Joe Rodriguez explains that the 65 by 24-ft. boat can work in water as shallow as five ft. While it features a model bow for open water work, it is designed to push a supply barge as well as to tow rigs and equipment from place to place. It also can transport liquids with tankage for 9,000 gallons of fuel and 12,000 gallons on potable water. Propulsion for the new boat, the Miss KerriLyn, is provided by a pair of Cummins N14 engines rated for 480 hp each at 1,800 rpm.

Rodriguez Boat Builders, of Bayou LaBatre, Ala., delivered one more of their popular lugger tugs to Central Boat Rental of Morgan City, La., at the end October. Designed for the specialized tasks of supporting shallow water oil wells in the Gulf of Mexico they are as much supply boat as tug. Joe Rodriguez explains that the 65 x 24-ft. boat can work in water as shallow as five ft. While it features a model bow for open water work, it is designed to push a supply barge as well as to tow rigs and equipment from place to place. It also can transport liquids with tankage for 9,000 gallons of fuel and 12,000 gallons on potable water. Propulsion for the new boat, the Miss KerriLyn, is provided by a pair of Cummins N14 engines rated for 480 hp each at 1,800 rpm.

Seacraft Shipyard Corporation of Amelia, La., delivered M/V Contender, a 140-ft. aluminum oilfield crewboat. M/V Contender represents the new generation of aluminum oilfield crewboat, designed and built to transport and support the oilfield industry in the Gulf of Mexico. Designed in house, the vessel is certified for Gulf of Mexico Service by the United States Coast Guard and the American Bureau Shipping via loadline standards. The vessel is certified to carry 140 long tons of deck cargo located on the large aft deck measuring 70 x 18-ft. The vessel is equipped to transfer 20,938 gallons of rig water and 11,500 gallons of fuel. The vessel is also equipped to carry 7,776 gallons of ship’s fuel and 1,500 gallons of potable water.

On the first 24-hour charter trip this May 5, the repowered 110-ft.Capt. Bill III achieved speeds over 25 knots and used 240 gallons less fuel than with the old engines. The additional speed resulted largely from the increase in horsepower to 2,100 hp total generated at 2,100 rpm by the three six-cylinder, four-stroke Cummins KTA19 M4 engines. These replaced three 12-cylinder two stroke engines that produced a combined 1,740 hp at 2,300 rpm for a top speed around 22 knots. The fuel savings, that came in spite of approximately 20 percent increase in horsepower, results from the move to 4-cycle technology, reduced rpm and design efficiencies. The reduced rpm and fuel burn can also be expected to result in longer intervals between engine overhauls.

Gladding-Hearn Shipbuilding, The Duclos Corp., has delivered its 11th police boat for the New York City Police Department. The new high-speed, all-aluminum deep V-hull, which measures 13 ft. abeam and draws 3.5 ft., is powered by twin Caterpillar 3208-TA diesel engines, each rated for 435 bhp @ 2,800 rpm, with a top speed in excess of 30 knots. The engines drive two 32-in. nickel-bronze propellers via Twin Disc 3:1 reverse/reduction gears and stainless steel shafts. The vessel features extremely robust hull scantlings and shear guard. Engine water is circulated under the decks to keep them ice-free. The boat's transom is equipped with a door, leading to a fold-down rescue platform. Onboard accommodations, for a crew of four, include a small galley, enclosed head and two bunks.

When trawler Cape Horn left Bellingham Bay Shipyard in Washington for the January 20, 1999 trawl opening in the Bering Sea fishing grounds, she carried nearly 400 gallons of fresh paint on the outside and a pair of new Cummins KTA38 main engines inside her hull. Replacing a pair of 900-hp, 16-cylinder two-cycle engines, the new 12-cylinder engines are rated at 1,000 hp. While these particular engines can deliver 1,200 hp, the owners, a Danish consortium, were able to keep the original Twin Disc 540 gears with their 7:1 ratio by having the engines derated. Although an adapter was available to fit the gear housing to the new engines, they opted to reduce torsional vibration by installing Centraflex flexible couplings. New 29-ft. by seven-in.

When trawler Cape Horn left Bellingham Bay Shipyard in Washington for the January 20, 1999 trawl opening in the Bering Sea fishing grounds, she carried nearly 400 gallons of fresh paint on the outside and a pair of new Cummins KTA38 main engines inside her hull. Replacing a pair of 900-hp, 16-cylinder two-cycle engines, the new 12-cylinder engines are rated at 1,000 hp. While these particular engines can deliver 1,200 hp, the owners, a Danish consortium, were able to keep the original Twin Disc 540 gears with their 7:1 ratio by having the engines derated. Although an adapter was available to fit the gear housing to the new engines, they opted to reduce torsional vibration by installing Centraflex flexible couplings. New 29-ft. by seven-in.