Page 23: of Maritime Reporter Magazine (January 1986)

The SES is powered by twin De- troit Diesel 16V149TIB engines that develop 1,650 bhp each and produce a cruising speed of 33 knots. The two Detroit 8V92 lift fan engines each have an output of 350 bhp and create the air cushion for the ves- sel.

The Speed Tide will deliver sup- port crews and supplies to drilling rigs and production platforms with- in a 50-mile radius in the Gulf of

Suez, consuming roughly the same amount of fuel as a conventional crewboat on a per-mile basis. "TWR CLASS"

Marinette Marine

The first of 10 Torpedo Weapons

Retrievers (TWR) under contract at

Marinette Marine Corporation in

Marinette, Wise., departed the ship- yard recently for delivery to the

U.S. Navy's Naval Sea Systems

Command in Charleston, S.C.

The TWR Class is an entirely new design developed by Marinette in cooperation with the Navy to meet stringent mission requirements.

The new vessels will replace the aging TWRs now in service. They are used by the Navy for recovering spent torpedoes, missiles, small drones, and mobile targets fired during weapons systems tests of all submarines and surface combatant ships. The new TWRs will be capa- ble of staying on station for a week in support of these tests; the smaller existing boats have to return to base at night and return to the test site the next day.

The new TWR is 120 feet long with a beam of 25 feet, depth of 12 feet, and an approximate displace- ment of 213 tons. The vessel is all- steel construction with 2,000 bhp of propulsion power on twin shafts driving fixed-pitch propellers. It has a design speed of 16 knots, range of 1,700 nautical miles, and accommo- dations for a crew of up to 18 men.

WEAPONS RETRIEVER

Major Suppliers

Main engines (2) & reduction gears . . . Caterpillar

Propellers . . . . Kahlenberg

Generators (2) . . . . . . . Caterpillar

Switchboard .... Conselect

Radar Canadian Marconi

Loran C & plotter . . EPSCO Marine

SatNav system . . . . . . Magnavox

Gyrocompass . . . Sperry

Radio direction finder Furuno

Depth indicator . . Raytheon

Speed log . . . Datamarine

Searchlights .... . .Carlisle & Finch

Bridge-to-bridge VHF radio . . Intech

Announcing system . . Marine Electric

For this tough assignment, the

Minnesota-based owner selected twin Cummins KT19-M diesel en- gines for main propulsion. Each of these six-cylinder turbocharged en- gines develops 510 bhp at an inter- mittent rating of 2,100 rpm. Most pushboats of this size do not have this much horsepower, but the own- er wanted reliable propulsion, with plenty of power in reserve, for the variety of bridge-building functions it is performing, including construc- tion of cofferdams, maneuvering crane barges, and transporting ce- ment trucks on a service barge.

Johnson has a $16-million contract to build a 3,365-foot-long bridge across the Columbia River at Uma- tilla, Ore.

The vessel has a beam of 18 feet, depth of 7 feet, and operating draft of 6 feet. Operator eye level in the pilothouse is 25 feet above the waterline. Each Cummins engine drives a stainless steel propeller supplied by HDF Propellers of

Seattle. Air controls are American

Standard, and the hydraulic steer- ing system, making use of Parker cylinders, valves, and pumps, was supplied by Western Fluid Power of

Portland.

The main engines are cooled by a Fernstrum keel cooling system that is mounted on the sides of the hull. Fuel filters are by Racos and mufflers by Harco. A 20-kw North- ern Lights generator was supplied by Alaska Diesel Electric of Seattle.

Rodgers Marine Electronics of Port- land supplied the Raytheon radar,

Standard depth sounder and VHF radio, and Horizon loudhailer. Oth- er suppliers, all in Portland, in- cluded Apollo Marine Services, elec- trical components; Western Metals, aluminum windows; and Devoe paints.

OUTSTANDING

CONVERSIONS

A review of some notable conversions of inland/offshore vessels featured during 1985.

HARVEY TROJAN

Avondale-Harvey

The Harvey Quick Repair Divi- sion of Avondale Shipyards in Har- vey, La., during 1985 completed an extensive overhaul and re-engining of the 121-foot oceangoing tug Har- vey Trojan. Originally delivered by

Halter Marine in 1974 as the Abdon

Martin, the vessel is now owned by the Harvey Gulf International.

A major part of the conversion was the replacement of the two ori- ginal engines with twin Stork-Werk- spoor 6SW280 diesels driving four- bladed, stainless steel propellers in

Kort nozzles via Reintjes WV3400 reduction gears with a ratio of 5.053:1. The gears were supplied by

Karl Senner, Inc. of New Orleans when the tug was built. The over- hauled engine controls had been supplied by WABCO Fluid Power, an American Standard company, and the steering system by Sperry/

Vickers.

The entire hull was blasted and painted, inside and out, the stern roller was overhauled, and the bow fenders were replaced. For heavy- duty towing jobs in the Gulf of Mex- ico or worldwide, the tug is fitted with an Intercon 225 double-drum towing winch with a bollard pull of 280,000 pounds. Other deck equip- ment includes an HBL anchor wind- lass, Carlisle & Finch searchlights, and Kahlenberg air horn. Fuel oil capacity is 120,000 gallons and pota- ble water 15,000 gallons.

In addition to the new SWDiesel main engines, the vessel has two 100-kw generators driven by Detroit

Diesel 8V-71 engines. These units were supplied by George Engine

Company of Harvey.

The entire electronics array was replaced with new equipment. This includes two Anritsu ARM112A ra- dars, Furuno LC-80 and Texas In- struments T1900 Loran C, Magna- vox satellite navigation system,

Simrad depth sounder, Sperry gyro- compass and autopilot, Ritchie magnetic compass, two Stephens

SEA112 SSB radios, and two Sailor

RT144 VHF radios. All electronics were supplied and installed by Bib- bons & Rice of Morgan City, La.

DOC TIDE/DAROL TIDE

Bender Shipbuilding

Bender Shipbuilding & Repair

Company of Mobile, Ala., during 1985 redelivered two offshore sup- ply vessels, the Doc Tide and the

Darol Tide, to Tidewater Marine (continued)

WALTER D. JOHNSON

Keith A. Record

The 42-foot, 50-ton pushboat

Walter D. Johnson, built by the

Keith A. Record shipyard of Port- land, Ore., for Johnson Bros. Cor- portion, is performing a demanding job on the Columbia River—that of spotting bridge construction barges in tight quarters and rapid river cur- rents.

In the harsh reality of an emergency at sea, time-after-time those who had the foresight to have an Imperial Survival Suit onboard and put it on, lived. Even when freezing waters killed their unprepared shipmates. Imperial kept them afloat, warm, safe and alive for hours, even days. In one documented case, four men survived nine hours in 35°F water with 100 m.p.h. winds and 25 hours on a frozen beach. Over 300 people have cheated death by wearing Imperial

Survival Suits.

IMPERIAL, THE WORLD'S BEST SELLING

SURVIVAL SUIT IS BUILT BETTER...

OVER 80,000 IN USE!

Waterproof Face Seal & Adjustable

Spray Shield protects & warms

High-Rider Ring for comfortable floating

Sealed Waterproof Zippers & salt/corrosion-resistant Beryllium pulls

One-Piece Sealed Construction attached hood, boots and gloves

Without a Survival Suit cold water kills quickly. The human body loses heat 23 times faster in water Even with a flotation device, your chances of surviving a short time without adequate insulation are remote. If the initial shock doesn't kill you, the effects of hypothermia can cause death in minutes. In fact, according to the

U.S. Coast Guard, "History has shown most victims of accidents in cold water, even when buoyed by life preservers, have died before they were rescued'.'

Meets Rigid Standards: Every Suit tested with Underwriters Laboratory supervision.

Built-in Whistle aids rescue

Light Pocket holds U.S.C.G. approved PFD light

Built-in Buoyancy supports indefinitely even if completely flooded

Buddyline helps crew stay together

Lifting Harness is tested for 1000 pounds

Insulates Against Hypothermia- seals out cold, holds body heat

One Size Fits All Adults 5 4 to 6 4

Light Weight, Suit weighs only 12 lbs.

For information contact:

Imperial Manufacturing Co.

Post Office Box 4119

Bremerton. Wa 98312 U.S.A.

Phone (206) 674-2316

Telex 152190 Imperial Brem

Approved By: U.S. Coast Guard; Norwegian Maritime

Directorate: Canadian Coast Guard; Canadian Oil & Gi ; Gas

Lands Admin.; U.S. Navy Clothing & Textile Labs &

Underwriters Laboratory.

Highly Visible international orange color & 3M Solas Grade reflective tape ,Ankle Tighteners adjusts for better fit and mobility

Attached Hard Soles provide non-skid traction

Flame & Fire Retardant materials available i»nr

Dealer inquiries invited

Circle 158 on Reader Service Card

THE DIFFERENCE BETWEEN LIFE AND DEATH

January 1, 1986 25