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Another Z-Tech for Bay-Houston
01 Jun 2007
The Z-Tech design by Vancouver based tug designer Robert Allan has proved successful around the world but Bay-Houston Towing Co is one of only two operators having them built across the border in the United States.
The Houston based company has just signed a contract with Texas builder Orange Shipbuilding for a second 6,300 hp Z-Tech harbour tug which is scheduled to join the fleet in February 2009.
The vessel will measure 98.5’ LOA, with a beam of 39.3’ and a draft of 16.4’. It will be powered by twin Caterpillar 3516C marine diesels delivering 3,150 hp each through SRP-1520 Schottel drives turning 2,700 mm stainless steel propellers for a bollard pull of 75 tons.
Markey Machinery Company will provide a model DYSF-52 escort line towing winch at the bow with an automatic render/recover mode as well as an application specific Markey tension meter. The winch will have a brake capacity of 500,000 pounds.
Electrical power will be provided by two John Deere gensets, each rated at 125 kW.
The tug will be built to FiFi 1 standard and will be equipped with two Caterpillar C18 engines powering twin fire pumps rated at 5,300 gallons per minute, with water mist capability built in.
All engines on the vessel, including main propulsion, fire pumps and gensets are EPA Tier II compliant.
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