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Shipbuilders: ... .Avondole Industries Ship Name: ... .Captain H.A. Downing Ship Type: Tanker Owner/Operator: AHL Shipping INNOVATIVE CONVERSION Though all other Great Ships men- tioned in this edition are newly con- structed, Captain H.A. Downing from Avondale deserves recognition as a unique project and accomplishment. The ship is the first of four AHL tankers being built as double-hulled ships with the addition of a new 510-ft. (155.4-m) long double-hulled forebody constructed by Avondale. The new forebody is joined to the ren- ovated and modified existing stern sec- tion, where the engines, crew quarters and bridge are located — to complete the conversion into a modern, environmentally sound, double-hulled product carrier, and the first commercial, self-pro- pelled double-hulled tanker built in the U.S. to con- form with OPA 90 and the Jones Act. The ship uses a steam-powered central hydraulic sys- tem to drive deepwell cargo pumps and deck machin- ery. It features a new accommodations house and an onboard vapor recovery and inert gas system. Meeting USCG Type II requirements, the design, pumps and coatings systems are capable of transporting a wide range of products from Grade A petroleum to xylene. Overall the ship measures 207 x 27.4-m, with a design deadweight of 39,431 metric tons. A 13,600-hp cross compound steam turbine main engine drives the vessel to a service speed of 15.5 knots. The vessel is outfitted with an array of the latest equipment, which can be reviewed in detail on the accompanying Main Particulars list. One of the more unique aspects of this four-ship project is that it is being run through a yard which has relied completely on Navy business for many years. Subassemblies and modules for an LSD 52 and Fast Sealift Ship moved side-by-side with the 38,000-dwt AHL forebody through the covered factory, through the same blast and paint facility, and along the same path over the Mississippi River levee to their respective erection ways. "To accomplish this, every department of our ship- yard had to adapt to the accelerated schedule, reduced complexity, and highly streamlined requirements of the commercial job," said Ron McAlear, Avondale's vice president of Advanced Programs and Marketing. Avondale and AHL formed a Tiger Team with the U.S. Coast Guard to obtain early approval on a number of design documents that can typically delay a program. According to Mr. McAlear, the Navy understands that commercial programs offer innovation as well as a prudent revenue supplement for the U.S. shipbuilding base. Avondale's 36,074-cu.-m. covered factory for modular construction was designed with the synchro- nization challenges of Navy and commercial work in mind. Construction is now progressing on the remain- ing three ships in the AHL program. The second double-hulled forebody was launched on September 25, and the new ship is to be christened Anasazi. The double-hulled forebody for the third ship, which will be named New River, is also present- ly under construction at Avondale. A keel laying cer- emony was held on October 2, for the fourth ship, which will be named The Monseigneur. The double- hulled product carriers will transport refined products and chemicals. Captain H.A. Downing Main Particulars Designer: Avondale Industries, Inc. Flag: U.S Classification: ABS Contract Date: May 12,1995 Float Out Date: July 31,1996 Delivery Date: October 3,1996 Length o.a.: 207 in Length b.p.: 198.8 m Breadth, Molded: 27.4 m Depth, Molded: 16.4 m Gross Tonnage: 24,846.2 M.T. Displacement: 49,270 M.T. Lightweight: 9,797 M.T. Deadweight (Design): 39,431 M.T. Deadweight (Scantling): 40,017.4 M.T. Draft (Design): 10.97 m Draft (Scantling): 11.2m Speed (Service): 15.5 knots Cargo Capacity: 42,000 cu. m. Bunkers: 2,070 cu. m. Water Ballast: 18,900 M.T. Fuel Consumption: 60 tons/day Percent of High Tensile Steel: 80 Main Engine Manufacturer: Bethlehem Steel Main Engine Type:Cross Compound Steam Turbine, 13,600 hp Propellers: Bethlehem Steel Generator engines: General Electric Generators: GE 500 kW, 450 VOLT AC Emergency Generator:Steward & Stevenson 8V-92TA, 250 kW, radiator cooled diesel Motor Starters: GE Reduction Gear(s): Falk, double reduction Steering Control(s): American Engineering, electric-hydraulic Deck Machinery: Aquamaster and Techrane Shafting: Bethlehem Steel Coatings: Ameron Jotun-Valspar VHF Radio: Sperry Marine GMOS system SSB Radio: Sperry GMOS system Radar: Sperry Rascar VT Compass: Sperry MK 37 digital GPS: Sperry NT 200 GPS PN 80926-00 Autopilot: Sperry SatNav: Trimble Pumps:Framo Cargo Pumps, ITT foam pump, Leistritz SV, scrub- ber and DK seal pump Heal Exchangers: .Bethlehem Steel, C.H. Wheeler, Cochrane Air Conditioning: Carrier Lifeboats: Harding-Watercraft 6.5 M MKV, Saab engine Liferafts: Viking 6 DK Fire Fighting System: Herbert Hiller Desalination Equipment: .(2) Bethlehem Steel, single-stage, 10,000 GPD Cargo Control System: Framo Ballast Control System: Scana Skarpenord level control Computers: Scana Skarpenord Stern Tube Seal: John Crane Cathodic Protection: Wilson Walton Inert Gas System: Permea Shipbuilder:Halla Engineering & Heavy Industries Ltd. Ship Name: Hanjin Zenoa Ship Type: Containership Halla Engineering & Heavy Industries Ltd. has delivered Hanjin Zenoa, the third in a series of 2,500- TEU containerships. The double skin vessel measures 210.5 x 32.3 m, with a 1.9 space between steel skins. The 30,280-gt vessel is powered by a Hyundai B&W 8K80MC-C engine which develops 34,040 bhp at 104 rpm and dri- ves a NiAlBr Hyundai-make CP, 7.3-m propeller. The ship has a service speed of 22 knots, and main engine consump- tion is 90.08 tons/day. Hanjin Zenoa is classed by Germanischer Lloyd to GL+ 100AS Container Ship + MC, AUT, 1W. The ship is equipped to carry 1,100 TEU in the hold (7 tiers, 11 across) and 1,400 TEU on deck (5 tiers, 13 across on Kvaerner hatches). There are also 215 reefer plugs. Hanjin Zenoa Main Particulars Length, o.a.: 210.5 m Length, b.p.: 190 m Breadth, Molded: 32.3 m Width Of Double Skin: 1.9 m Draft (Design): 11m Draft (Scantling): 12.2 m Depth, Molded To Main Deck: 19 m Gross Tonnage: 30,280 tons Deadweight 29,800 tons Deadweight (scantling): 36,100 tons 36 Maritime Reporter/Engineering News
