The shallow-draft sector of the U.S. shipbuilding industry continues its pattern of steady growth, especially in the offshore sector.

Construction of utility boats, sicpply vessels, crexvboats, and other types to service the offshore drilling and production platforms, as well as tugs and towboats for use on the inland xoaterways, is providing substantial and profitable work for most of the smaller yards.

This article—our First Annual Review of Shallow-Draft Vessels — is a portfolio of some of the outstanding craft that have been completed by U.S. shipyards during the past year.

CRABBER/TRAWLER 'BIRGIT-N' The fishing vessel Birgit-N, first crabber/trawler built by Tacoma Boatbuilding for Bering Sea service, was delivered to Peter Njardvik and A.O. Nordheim to join their other vessels in the rigorous and highly competitive Bering Sea crab fishing. The vessel's design, by B.F. Jensen and Associates, incorporates several features that improve the efficiency of the trawler.

The new boat has an overall length of 123 feet, beam of 32 feet, and depth to main deck of 16 feet. Propulsion is by a Caterpillar D399 diesel with an output of 1,125 bhp at 1,225 rpm, providing a speed of 12 knots through 4.5:1 reduction gearing. The engine is controlled by Mathers Controls equipment. Electric power is provided by three Caterpillar generators— two model 3406 each of 210 kw and one model 3304 of 90 kw. The hydraulic system is by Vickers.

The Birgit-N has four crab tanks with a total capacity of 8,800 cubic feet, each tank being insulated with 6 inches of closedcell urethane foam. This fourtank arrangement allows for ease of loading crab, and also facilitates handling of salmon when the vessel operates as a tender during the Alaskan salmon season.

A 60-ton York r e f r i g e r a t i on plant is installed to maintain fish in the tanks at a temperature of 30 F in chilled seawater. Sumps located in the forward tanks and a sliding watertight door between tanks will allow rapid discharge of the frozen salmon via a fish elevator through the forward tank hatches.

A major benefit of the fourtank arrangement is a shaft alley allowing access from the engine room to the steering compartment and lazarette below decks.

The circulation pumps are located in the shaft alley, thus leaving more usable space in the engine room. All compartments below the deck are protected by watertight doors.

The efficiency of Birgit-N's design is enhanced by the use of two 10-ton cranes both supplied by Northern Line Machine, a division of Tacoma Boat. The forward crane has a reach of 36 feet, and will serve as the picking boom. The aft crane is a unique level-luffing design with a reach of 48 feet. The level-luffing feature of this crane allows the operator to raise and extend the boom without the need to constantly pay out or haul in line.

No matter how the boom is manipulated, the line length remains fixed. This arrangement is said to be safer, faster, and more precise than existing installations.

Both cranes are controlled by hydraulic servos on the main control valves that are located in the engine room.

The boat is also equipped with a pair of trawl winches, a stern ramp, and a Northern Line net reel to allow the Birgit-N to trawl for bait fish.

TOWBOAT 'BOONE7 Dravo SteelShip Corporation, Pine Bluff, Ark., recently delivered the towboat Boone to Cincinnati Gas and Electric Company for use at its East Bend Station, a coal and lime facility located on the Ohio River near Rabbit Hash, Ky.

The Boone has a length of 60 feet, beam of 22 feet, and depth of 7.5 feet, and is powered by twin Caterpillar 3412 marine diesels developing a total of 900 bhp at 1,800 rpm. The engines are cooled by Fernstrum grid coolers.

Caterpillar 3816, 45-kw, electricstart generators sets power the electrical system, which includes Beebe 33-RC deck winches, Carlisle & Finch searchlights, and other equipment.

The vessel is equipped with two 62-inch by 34-inch, four-blade bronze propellers furnished by Michigan Wheel. Two steering and four flanking rudders provide for maneuverability and speed.

The heavily braced and framed hull is fabricated of %-inch plate; deck plating is ^4-inch. Fuel capacity is 8,000 gallons.

SUPPLY BOAT 'CLIPPER KEY WEST' Blount Marine Corporation of Warren, R.I. has delivered the 156-foot offshore supply vessel Clipper Key West to Hamilton, Inc. of Panama City, Fla. The vessel admeasures under 200 gross tons, and is equipped to carry up to 600 long tons of combined calcium chloride or liquid mud and deck cargo. Clear deck length inboard is 114 feet, with a clear inboard width of 30 feet 8 inches. Her four mud tanks have a total capacity of 1,800 cubic feet.

Main propulsion is provided by two General Motors Detroit Diesel Allison 16V149 diesels developing a total of 1,800 bhp at 1,800 rpm and driving Columbian Bronze stainless steel propellers.

Two 99-kw generators furnish electric power. A 36-inch Murray and Tregurtha bow thruster is powered by a 210-bhp diesel. On sea trials at full draft the vessel attained a speed of 12 knots.

Steering is S.S.I, electrohydraulic with an automatic pilot.

Two radars, Sitex 22 and 23, a Marconi CH100 SSB radio, Motorola Triton VHF radio, Raytheon 6000 Dual C Loran, and Data Marine depth recorders complete the pilothouse equipment.

The Clipper Key West meets U.S. Coast Guard requirements for Gulf Service, and is classed + A-1 by the American Bureau of Shipping. She joins the supply vessels Clipper Paradise Island and Clipper Cozumel built by Blount Marine Marine for the same owner.

CREW/SUPPLY VESSEL 'C/RAIDER' Swiftships, Inc. of Morgan City, La., recently delivered the crew,/ supply boat C/Raider to CO-MAR O f f s h o r e Corporation, also of Morgan City. The vessel is the first in the CO-MAR fleet to be fitted with a ZF 2Vz:l reduction gear. Her MTU engines combined with the ZF gears allow the craft to use larger propellers. This results in the vessel being able to transport heavier loads at higher speeds.

A twin-screw vessel, the C/ Raider has a propulsion package consisting of two MTU 12V331 engines and ZF gears. A Delco 30-kw generator is driven by two Detroit Diesel 3-71 engines. On sea trials the boat attained speeds up to 25 knots.

Having passed U.S. Coast Guard inspection, the C/Raider is certified to carry 65 passengers, aviation fuel, and corrosives.

Accommodations are provided for a five-man crew.

With a cargo deck space 58 feet by 16 feet, the vessel's cargo capacity on deck is 110 long tons; below-deck capacity is 52 tons.

Loaded draft is 6 feet. The tanks hold 3,740 gallons of fresh water, 13,350 gallons of drill water, 500 gallons of drinking water, and 4,000 gallons of fuel, giving the vessel an endurance of 40 hours.

Columbian supplied the propellers, four-blade, 42-inch by 38- inch Crewboat Bronze models.

Electronics were supplied and installed by Bibbins & Rice. They include a Furuno radar, two radiotelephones, a Drake TRM-1 SSB radio, Drake MRF-55 VHF radio, Texas Instruments TI-9900 automatic Loran, an Impulse 600CV depth sounder, and Danforth C654C compass.

C/Raider is equipped with lifesaving gear, and has full firefighting capabilities, and air-conditioning and heating throughout.

CEMENTING VESSEL 'HALLIBURTON 224' Rockport Yacht & Supply Company, Inc. of Rockport, Texas, recently delivered the first of two 130-foot cementing vessels to Halliburton Services of Duncan, Okla.

Named the Halliburton 224, the vessel operates out of Harvey, La., and incorporates Halliburton's latest pumping machinery and five P-tanks installed in the main deck. The vessel has an overall length of 130 feet 7 inches, beam of 33 feet, and depth of 7 feet.

Propulsion is provided by two Caterpillar D-353 diesel engines, each with continuous output of 415 bhp at 1,225 rpm. The power train includes Twin Disc MG521, 4:1 reverse/reduction gears, two four-blade propellers, and stainless steel shafts.

The specialized pumping machinery is located on the main deck forward and in a machinery space below deck. The vessel is classed by the American Bureau of Shipping A-l, AMS, Inland and Coastwise Service. The sister vessel Halliburton 225 has also joined the Halliburton fleet.

Rockport Yacht & Supply and its associate shipyard, RYSCO Shipyard, Inc. of Blountstown, Fla., are subsidiaries of Luling Oil and Gas Company of San Antonio, Texas. The RYSCO yards are builders of supply boats, utility vessels, and tugs, and are known internationally for their seaworthy shrimp boats and fishing trawlers.

PUSHER TUG 'JEANNE MARIE' The recently delivered Jeanne Marie is the first of three sister vessels to be built by Marine Builders of Clarksville, Ind., for Archway Fleeting and Harbor Services of St. Louis, Mo. Powered by a matched pair of Cummins KT-2300-M diesels with a combined output of 1,400 bhp at 1,800 rpm, the pusher tug is the first newly constructed boat on the nation's inland waterways powered by the KT-2300-Ms.

The tug is 70 feet long with a beam of 26 feet and draft of 5*/2 feet. The sturdy vessel has been designed to handle heavy traffic.

Twin Disc 530 gears with a 6.06:1 reduction ratio transmit power to twin 72 by 60 inch, stainless steel Kahlenberg propellers. Two knees rising 8 feet above the deck are bolted to the ship's understructure for added strength and stability.

A Racor 800B-5 recycle blending system helps save fuel by centrifuging crankcase oil after changes and recirculating the 35 to 40 gallons into the fuel system.

A pair of Cummins 40-kw, N-495- GS generator sets, one a standby unit, provide electric power for lights, winches, and radios.

The steel-hulled pushboat is being used in Archway's switching operations based at Reidy Terminal in St. Louis. To further insure against lost time due to maintenance work, a service agreement has been signed with the St. Louis Cummins marine distributor, Cummins Missouri, Inc., for parts and service requests on a priority basis.

TUGBOAT 'JEKYLL ISLE' The 76-foot tugboat Jekyll Isle has been delivered by Gladding- Hearn Shipbuilding Corporation of Somerset, Mass., to Jekyll Towing and Marine Services Corporation of Jekyll Island, Ga.

Equipped with a wide array of deck gear and electronics, the new vessel is the latest in a series of innovative tugs designed and built by Gladding-Hearn during the yard's 25 years of operation.

Main propulsion power is supplied by two GM Detroit Diesel Allison 16V-92 engines with a total output of 1,200 bhp at 1,800 rpm, giving a free-running speed of 11.3 knots. At cruising speed the boat has a range of 4,000 miles, and she can operate for up to 20 days at sea without resupplying when on low-fuel operation, such as maintaining a station-holding pattern. Fuel Capacity is 13,000 gallons, and her 550-gallon water tanks can be replenished by a 150-gpd Maxim evaporator.

The Jekyll Isle is fitted with fuel-saving Kort nozzles, and she has a bollard pull of 17V2 tons.

The vessel has both U. S. Coast Guard and American Bureau of Shipping certification for Unrestricted Ocean Service, and meets USCG stability standards for towing, passenger service, and over-the-side crane lifts with up to 24-foot outreach.

Two Detroit Diesel 3-71 diesel generators supply 30 kw each.

The electrical system is designed for non-parallel operation. Two banks of 12-volt dc batteries power electronics, emergency lighting, and auxiliary engine starting.

Main engine starting and certain specialized electronics are powered by a 24-volt dc system.

Deck gear includes three winches, a knuckle-boom crane, 25-ton, pneumatic-release towing hook, and a 6-ton hydraulic A-frame.

The latter lowers to the deck while the vessel is in the towing mode. An aft steering station — with controls for the A-frame, main winch, knuckle-boom crane, and hydro-winch—and a 600-watt searchlight for aft maneuvering are located on a walkway behind the pilothouse.

The vessel's electronics include a Wagner autopilot, Raytheon 1025 radar, a smaller Raytheon backup radar, Simrad EQ depth recorder with MC expander system, and Wesmar scanning sonar and Towfish sonar. Loran is a Raytheon 600 with navigational computer including latitude and longitude readout. Radios are two Nautilus VHFs and one 1,000- watt SSB. For routing and operational planning she carries a Furuno facsimile weatherfax system.

The boat is designed for crew and passenger comfort as well as performance. For coastal day trips she can carry a master and up to 12 passengers. For offshore missions she has four berths located in the forecastle and two in the dinette area, providing accommodations for four crewmen and three to four guests. The vessel has central heating and airconditioning throughout.

TOWBOAT 'JOHN M. DONNELLY' In the shadow of the St. Louis Arch, Ingram Barge Company recently christened its new 9,000- bhp towboat, the John M. Donnelly.

Designed and built by St.

Louis Ship, Division of Pott Industries, the vessel features the exclusive Hydrodyne hull, and is the third towboat in the Ingram fleet built by St. Louis Ship.

The Donnelly's hull measures 200 feet by 50 feet by 11 feet 6 inches, with a normal operating draft of 8 feet 6 inches, and is designed to have an overall height of 38 feet 6 inches at design draft. The all-welded steel hull is heavily framed longitudinally and transversely, with the aft deck raised to provide additional strength to the stern.

Propulsion power is furnished by three GM Electro-Motive Division 16-645E7BA marine diesels, each developing 3,000 bhp at 900 rpm, fitted with Falk 30MRV48 vertical offset, reverse/ reduction gears. The engines and gears are cooled with water circulated through a St. Louis Ship skin cooling system. The engines are started from the engine room only, and are controlled by WABCO pneumatic control equip- ment in the pilothouse and at each engine. Three five-bladed, stainless steel, 109-inch propellers turn in stainless steel lined Kort nozzles. In additional to the conventional engine room controls, the Donnelly is equipped with an Engine Monitor Inc. monitoring system featuring an alarm panel in the pilothouse and one in the engineer's control booth.

Electric power is provided by two GM Detroit Diesel 150-kw diesel generator sets. A General Electric deadfront switchboard located in the soundproofed and air conditioned control booth is wired for parallel operation of the generators.

Pollution-control equipment has been installed to bring the towboat into compliance with all existing environmental protection requirements. All propulsion engine, reduction gear, and generator diesel sumps, as well as the propulsion engine's lube oil filters and coolers, can be pumped by a Viking pump to the dirty oil holding tank, or to a valved discharge connection on the main deck. Provision is also made for pumping out the dirty oil holding tank to this deck connection.

All bilge suctions are pumped via a Gorman-Rupp bilge pump to the oily water bilge collecting tank. A Hyde bilge pump draws from the oily water collecting tank and discharges to the Hyde separator, where separation and dispersal by gravity takes place.

A St. Louis Ship FAST model 13-M sewage treatment plant treats the sewage from the toilet drains, and is valved to discharge the effluent overboard or to a flanged connection on the main deck.

Deck machinery consists of two Schoellhorn-Albrecht 20-hp, motor- driven double-barreled capstans, and six NABRICO 10-hp motor-driven winches. Two Sasgin boat davits, one with an Ingersoll-Rand pneumatic hoist, are located aft, port and starboard on the second deck, to handle supplies, the small workboat, and the runabout.

All living quarters, lounge, galley, messroom, engineer's control booth, and pilothouse are heated or air-conditioned, with either hot or chilled water circulated through McQuay Perfex fan coil units, with circulating water being supplied from either a Weil- McLain heating boiler or a Carrier liquid chiller unit.

Two Varo 18-inch xenon searchlights are located atop the pilothouse.

One Carlisle & Finch 14- inch, remote-controlled searchlight is located aft on the 2nd deck.

Navigation and communication equipment includes two Sperry radars, two Triton VHF-FM radiotelephones, one Northern SSB radio, two Honeywell fathometers, Hose McCann sound-powered telephone system, and a Galbraith E3750 public address system.

PASSENGER/SUPPLY BOAT 'MARINA S.' The Marina S. is a passenger/ supply vessel built by Mississippi Marine Towboat Corporation of Greenville, Miss., for Dinko's Marine Service of Aransas Pass, Texas. The new vessel is being used for contract work in Gulf waters from Brownsville, Texas, to Key West, Fla. With a length of 100 feet, beam of 24 feet, depth of 11 feet 6 inches, and normal operating draft of 8 feet, the vessel can accommodate 33 passengers and a crew of four.

The combination craft is powered by twin GM Detroit Diesel 16V-71 engines with a total output of 910 bhp at 1,800 rpm, coupled to Twin Disc gears with reduction ratio of 5.17:1. A pair of Lima 50-kw generators driven by Detroit Diesel 4-71 engines operating at 1,200 rpm provide electric power.

The vessel is fitted with a dualstation Orbitrol steering system, Decca RM914C radar, Sperry 8T autopilot, Raytheon 50A VHF radio, Dubose SSB radio, Texas Instruments TI-9900 Loran C, Furuno F-850 depth finder, and a Kahlenberg D-2 air horn.

Fuel capacity is 18,494 gallons, potable water 1,705 gallons, cargo water 37,644 gallons, and lube oil capacity 150 gallons. Deck cargo capacity is about 35 tons. The vessel is fitted with a central water-cooled air-conditioning system.

Mississippi Marine offers towboat design and c o n s t r u c t i on from initial design through completion.

The yard also builds barges and offshore vessels, offering several stock designs that can be custom-fitted to fit individual owners' needs.

The Marina S. was designed by New Orleans naval architect Coe M. Best Jr.

UTILITY VESSEL 'PBR-216' The offshore utility vessel PBR- 216 and five sister boats have been completed by The Service Marine Group, Inc. of Morgan City, La., for PBR Offshore, Inc., also of Morgan City.

The PBR-216 has an overall length of 118 feet, beam of 26 feet, depth of 11.5 feet, and draft of 10 feet. Cargo water capacity is 58,000 gallons, fuel oil capacity is 30,000 gallons, and deck cargo load is 103 tons, with additional below-deck capacity of 217 tons.

The utility vessel is powered by two General Motors Detroit Diesel 16V-92N engines with a total output of 1,200 bhp at 1,800 rpm, supplied by George Engine Company, driving Twin Disc 5:1 reduction gears for a speed of 12 knots. Electric power is provided by two Detroit Diesel engines driving 50-kw generators.

Other equipment includes Sitex model 22 radar, Motorola 55/75 VHF radio, Drake TRM-115 SSB radio, SRD model CLX Loran, and Datamarine 2650 depth finder.

TOWBOAT 'PERCHERON' The 65-foot towboat Percheron was built by Balehi Marine, Inc.

of Lacombe, La., for Clydesdale Corporation, Harvey, La. The new vessel is powered by a pair of Detroit Diesel engines supplied by Kennedy Engine Company of Biloxi, Miss. Owners are Cliff Spanier and Larry Gisclair; the design work was done by naval architect David P. Levy.

Twin Disc reduction gears, 6y2- inch Aquamet 18 stainless steel shafts, 7-inch Aquamet 18 rudder stocks for the two steering and four flanking rudders, combine with a pair of Coolidge 72- inch by 54-inch stainless steel propellers to assure optimum performance for the Percheron.

Tank capacities are 22,300 gallons of diesel fuel, 9,000 gallons of potable water, and 160 gallons of lube oil.

P i l o t h o u s e outfit includes a Furuno KRA-124 radar, two Nautilus Motorola VHF radios, Apelco AH-130 Loudhailer, controls for two Nabrico 40-ton electrohydraulic winches, Perko running lights, Carlisle & Finch searchlights, Buell-Stromberg air horns, Custom Hydraulic steering system, and Kobelt engine controls, FIRE/UTILITY VESSEL 'POINT T' Halter Marine, Inc. of New Orleans introduced a new line of fire/utility boats with the recent delivery of the 150-foot Point 'T' to Point Venture, Ltd. of Morgan City, La. In addition to her 61,- 000-gallon liquid mud capacity, the new vessel carries three 6- inch, 2,400-gpm fire monitors capable of pumping water as well as 1,720 gallons of foam.

The Point 'T, with overall dimensions of 150 feet by 36 feet by 14 feet, is powered by two GM Detroit Diesel 16V-149NA engines each developing 900 bhp at 1,800 rpm.

She has a cargo capacity of 275 long tons and has 2,200 square feet of cargo space on her aft deck. She can carry 78,560 gallons of fuel oil, 1,283 gallons of lube oil, 3,974 gallons of fresh water, 108,196 gallons of ballast water, and has a sanitary holding capacity of 895 gallons.

Auxiliary machinery includes two GM 75-kw generators driven by two Detroit Diesel 6-71 engines, a Continental Electric generator control panel, an Engine Monitor monitoring system, two Quincy D325 air compressors, and Aurora fire, ballast, bilge, and fuel-transfer pumps. The vessel is fitted with a Bird-Johnson bow thruster driven by a GM diesel, and the engine room is protected by a fire alarm system and automatic COL. flooding system.

Living quarters include six cabins, 20 berths, and a fully equipped galley. Classed by the American Bureau of Shipping A-l + AMS, Point T meets the requirements of USCG NVC 1-78 and USCG Subchapter I; carries a Panama Canal Admeasurement Certificate; and is approved by the U.S. Public Health Service.

SURFACE-EFFECT BOAT 'RODOLF' The Rodolf, a 48-foot surfaceeffect vessel built by Bell-Halter of New Orleans for the Portland (Oregon) District of the U.S.

Army Corps of Engineers, began service with a tour of the Gulf and Atlantic Coasts to demonstrate its operational and hydrographic surveying capabilities.

Two 350-bhp GM Detroit Diesel 8V-92N engines power twin fourbladed propellers, and a Detroit Diesel 105-bhp 4-53N engine drives the 30-inch-diameter lift fan. The widely spaced propellers make the craft highly maneuverable at all speeds, both cushionborne and hullborne.

As a result of the surface-effect vessel's unique design, the Rodolf is expected to improve significantly hydrographic and surveying technology through its high-speed capability and minimal wake. The boat rides on a cushion of air contained by catamaran style side hulls and flexible bow and stern skirts. At cruising speed the center portion of the hull is clear of the water, supported on the air cushion, thereby reducing resistance, providing higher speed, and improving ride and stability qualities.

Bell-Halter is a joint venture of Bell Aerospace Textron and Halter Marine formed to design, construct, and market air-cushion craft for commercial service.

CREW/SUPPLY BOAT 'PORT ARTHUR' Progressive Shipbuilders and Fabricators, Inc. of Houma, La.

has delivered the aluminum crew/' supply vessel Port Arthur to Port Arthur, Inc., also of Houma. The 110-foot boat has a beam of 24 feet and depth of 10 feet 6 inches.

She is able to carry 63 passengers and a crew of five, as well as 47 long tons of deck cargo.

Normal service speed is 28 knots.

Main propulsion is provided by four GM Detroit Diesel 12V71 engines, each with an output of 445 bhp at 1,800 rpm, supplied by George Engine Company. Twin Disc supplied the four reduction gears, model MG 514, with 2y2 :l ratio. Engine controls were supplied by WABCO.

Fuel capacity is more than 6,000 gallons, drill water 7,500 gallons, and potable water 800 gallons.

Navigation and communications equipment, supplied through Rhodes Electronics of Houma, include Furuno FRS 36 radar, Simrad LC 123 Loran C, Konel 1022 SSB radio, and Raytheon DE 750 Fathometer. Two GM 'Delco diesel generators provide electric power.

TRAWLER 'STORM PETREL' Another first for MARCO Seattle was accomplished with the delivery of the f i s h i n g vessel Storm Petrel to owner/skipper George Fulton. She is a refrigerated seawater, trawler/combination boat, MARCO's first to be designed and engineered principally as a trawler. The new vessel has an overall length of 123 feet, beam of 31 feet, and depth of 14 feet.

Propulsion power for the Storm Petrel comes from a turbocharged and aftercooled Caterpillar D399- TA diesel with a continuous rating of 1,125 bhp at 1,225 rpm, driving a 96-inch Coolidge stainless-steel propeller through Reintjes reverse/reduction gears, providing a normal service speed of 12 knots. Auxiliary power is provided by one Caterpillar 3304N and two Cummins KT1150GC engines.

The vessel features a two-deck aluminum pilothouse above the raised deck. The bridge deck has a 360-degree field of vision, and contains an aft-facing hydraulic control console that includes trawl winch controls.

The new boat has a complete outfit of electronics and other navigational aids, including two radars, two sonars, Loran, and a variety of radio equipment (see accompanying supplier list).

Much attention was given to net- and fish-handling space and equipment aboard the vessel, combining such features as the refrigerated seawater system, an eight-well configuration with a total capacity of 8,800 cubic feet, an articulated stern ramp, and a combination of gear that includes the first pair of MARCO's new WT-303 trawl winches and a removable four-drum stern gantry.

The new hydraulic ramp arrangement, which encloses the boat's stern when not in use, was Port Arthur developed by Mr. Fulton. MAR- CO's n ew WT-303 winches deliver more power than previous models, p r o v i d i n g the ability to handle the loads of midwater trawling.

They f e a t u r e a transmission that allows the winch to maintain constant speed and power once 30 percent of the cable is on the drum.

TOWBOAT 'VOLUNTEER STATE' The twin-screw, 5,830-bhp towboat Volunteer State has entered service moving commodities on the Lower Mississippi River. Built by Jeffboat, Incorporated in Jeffersonville, Ind., the new vessel is owned by American Financial Corporation and operated by H & S Transportation Company, Inc.

and River Lines, Inc. of Nashville, Tenn.

The Volunteer State is powered by two Alco Power Inc. 16-cylinder diesel engines, model 16- 251F, each rated 2,915 bhp at 1,200 rpm. T h e s e d r i v e fivebladed, stainless steel propellers through two Falk 3040 reverse/ reduction gears with a ratio of 4.192:1. Two steering rudders and f o u r flanking rudders are operated by independent hydraulic rams.

Two 100-kw g e n e r a t o r s are powered by GM Detroit Diesel engines.

Hot water and heating are provided by a Kewanee b o i l e r ; the D u n h a m - B u s h air conditioning s y s t em has a capacity of 20 tons.

Two Westinghouse 5320B air compressors are each rated 23.8 cfm at 250 psi.

Included in the deck machinery are two Schoellhorn-Albrecht type 21063 10-hp capstans, and four Beebe model 62 5-hp winches. The fire pump was supplied by Ingersoll- Rand.

Among the electronics are a Sperry MXIG-AX radar, Raytheon DE 760 digital depth indicator, and Intech VHF and SSB radios. National Marine Service provided a Series 70 Tugmonitor system, Carlisle & Finch two xenon searchlights, and Kahlenburg a model Q-4 air horn.

UTILITY VESSEL 'WANDA LOUISE' Hudson Shipbuilders, Inc.

(HUDSHIP) of Pascagoula, Miss., recently delivered its fifth vessel for 1980, the 120-foot utility boat Wanda Louise, built for Gerald P.

Hebert Enterprises, Inc. of Lafayette, La. Designed by Har Keswani & Associates of New Orleans especially for the production department of Transco Exploration Company, the new vessel will service production platforms up to 125 miles offshore.

The Wanda Louise is said to be a unique vessel for her size. In addition to having an American Bureau of Shipping loadline and being built to U.S. Coast Guard Subchapter I Requirements, her deck cargo capacity is more than 130 tons, and she has freezer/ cooler equipment to handle perishable items for the platforms and standby vessels.

Liquid cargo capability includes fuel, industrial water, and triethylene glycol. Heavy-duty, 3- inch pumps are used to transfer these liquids. She is required to off-load cargo in any type of weather, and is equipped with anchor chain and windlass rather than a cable and winch.

Wanda Louise is powered by twin GM Detroit Diesel Allison 16V92NA engines, each rated 600 bhp at 1,800 rpm and supplied by George Engine Company, and Twin Disc model 527 reduction gears. On sea trials the vessel exceeded 12 knots. Auxiliary power is provided by two 50-kw Delco generators driven by GM Detroit Diesel 4-71 engines. Engines are monitored by a 21-point Marine Electric system.

The pilothouse is designed for maximum visibility. Furnished and installed by Rhodes Electronic Service of Houma, La., the vessel's electronics include Furuno radars, Sea Command VHF radiotelephone by SSE, Impulse depth recorder, Apelco Trident loudhailer, Micrologic Loran C, Marco- Konel SSB radio, Nav-Lite panel by Continental Electric, and Sperry steering and autopilot system.

SCALLOPER 'WESTPORT' Bender Shipbuilding & Repair Company of Mobile has delivered the scalloper Westport to Tradewind Fishing Corporation of New Bedford, Mass. She is the first of four identical vessels to be built at the Bender yard — another for the same owner and two for Donna Lynn Fishing Corporation, also of New Bedford.

This latest series of vessels embodies many changes and improvements arising from operating experience with the fishing boat Tradewind, which was delivered to Tradewind Fishing in 1978. The Westport has an overall length of 98 feet, beam of 25 feet, and depth of 14 feet.

The new vessel is powered by a Caterpillar D399 diesel engine with an output of 1,125 bhp at 1,225 rpm, driving a Columbian Bronze 4-blade, 70- by 75-inch propeller in a Kort nozzle through a Caterpillar clutch and a Cat 7261 reduction gear having a ratio of 3.84:1. Service speed is 11.5 knots; engine controls are Mathers model AD12.

Cutless rubber stern bearings were supplied by Lucian Moffitt; main shaft bearings are Dodge Sleevoil. The main engine is cooled by Fernstrum keel coolers. Two auxiliary engines are Caterpillar model D3304T.

Deck equipment includes two Hathaway model 12 AITHS hydraulic trawl winches and a 16- inch Hathaway trawl block. Hydraulically positioned gallows are moved outboard into fishing position by hydraulic rams. When in this position, fishing loads are carried by the structure of the vessel.

Central a i r - c o n d i t i o n i n g by Therman serves the wheelhouse and main and lower deck accommodations.

The shucking house aft has Carrier air-conditioning and heating. The 15-person inflatable liferaft was supplied by Swit-Lick, and the air horn is a Kahlenberg model Tl.

Electronic gear, supplied as a package by EPSCO and installed by the R.H. Sassaman Company of Mobile, includes the following: EPSCO radar model M16, radar model EB Seaveyor, Loran C model Seanav XL (one 32-volt dc and one 115-volt ac), two model 2001 depth recorders, model 901 autopilot with model 505 standard compass; Cobra CB radio with SSB, Northern SSB radio model N550, Yaesu shortwave receiver model FRG-7, and Raytheon loudhailer.

Maritime Reporter Magazine, page 14,  Jan 1981

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