Page 45: of Maritime Reporter Magazine (November 1973)

Bethlehem Hoboken Yard

Drydocks Largest Vessel

Lifted In N.Y. Harbor

The Asopos was docked stern first, with the bow over- hanging the river by 1 1 4 feet.

The largest ship ever placed in a floating drydock in New York Harbor was lifted at

Bethlehem Steel Corporation's Hoboken ship repair yard.

The tanker, the 62,700-deadweight-ton Pana- manian vessel Asopos, has an overall length of 775 feet, beam of 106 feet and depth of 53 feet 9 inches. She came to the yard for sea voyage repair and hull painting.

Hoboken's floating drydock, the largest one in New York Harlbor, is 685 feet long. How- ever, outriggers in the dock take some of the space.

It was necessary, therefore, to dock the ship stern first, with the raked bow overhanging the river by 114 feet.

The dock is 110 feet wide but wooden fen- ders, used to protect the tanker's hull, leave only 108 feet of usable space, or two feet more than the width of the vessel.

Because of the small clearance, it took five radio-equipped tugboats, seven land-based winches with five-inch lines, and the dockmas- ter's great skill and careful coordination to haul in the big tanker. "It's like trying to back a moving van into a family garage while fighting a river current," said a yard employee.

John J. Brangan, the general manager, said the yard has three smaller drydocks in addi- tion to the big one that lifted the Asopos. "We can handle anything from these big tankers down to a fishing trawler," Mr. Brangan said.

Edo Western Adds

Doppler Speed Log

The Model 582C Doppler Speed Log is the latest addition to Edo Western Corporation's outstanding line of speed logs. Designed for use in solving many different types of speed sensing problems, this instrument combines the functions of Pitot tube, electromagnetic, continuous wave, and pulse type Doppler speed logs into one system that definitely shows marked improvement performance-wise.

The Model 582C is a complete system with an easily installed underwater sensor. It mea- sures true speed over - the - bottom in water depths to 300 feet, and automatically shifts to operation off the water mass in deeper water.

Utilization of dual acoustic beams eliminates the peculiar effects of boundary layer condi- tions encountered on large vessels.

In addition to providing high accuracy speed measurements, the Model 582C Doppler Speed

Log measures distance (read out in nautical miles) on a resettable counter located on the main display. The main display is available with optional remote displays for installation in such areas as the engine room, chart house, and open bridge.

Some outstanding features of the Model 582C

Doppler Speed Log are operation from only six inches above bottom to full ocean depths, high accuracy at low speed for critical docking re- quirements, rugged construction, low purchase price of system, and low cost of system in- stallation.

For further information contact Edo West- ern Corporation, 2645 South 2nd West, Salt

L-ke Citv. Utah 84115.

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November 1, 1973 51