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January 17, 2001

New Z-drive Tug For Dixie Towing

Horizon Shipbuilding of Bayou La Batre Alabama delivered a Cummins-powered Z-drive tug to Dixie Towing of Jacksonville Florida on January 12, 2001. The 70x26-foot boat is powered by a pair of Cummins KTA19 M3 engines rated for 500 HP each at 1800 RPM. The engines turn Ulstein-Aquamaster 370H Z-drives with 52-inch (1321 m/m) propeller diameters.

Dixie Towing owner Robert Gibbs explains that the new boat, named M/V Belle Watling, was nearly two years in planning. "I wanted a boat that would do all of the things expected of a vessel of her size and horsepower, only better."

Working with Jacksonville based naval architect Ed Glowacki, Gibbs settled on an azimuthing stern Z-drive design for its versatility. The original plans for a 24-foot beam on the hard chine hull was broadened to 26 feet in order to achieve the nine-foot draft limit of much of the Intercoastal Waterway. Gibbs points out additional advantages of the Z-drives including that he has done away with stuffing boxes and the costs of disposing of most bilge water. At the same time he has separated hull maintenance from the power train maintenance in that he can pull the stern mounted Z-drives without drydocking the boat. It was also practical considerations that brought him to the well proven Cummins KTA 19 M3 engine, "We like the separate cylinder heads on the in-line six-cylinder engine as well as the funding package available."

The new boat is equipped with a pair of Cummins Onan 35 Kw gensets and an electric over hydraulic Pullmaster winch generating 50,000 pounds of line pull and loaded with 1500 feet of 1 1/4-inch wire. "We will be experimenting with the winch both with conventional line towing and made up to barges bridals for pushing," explains Gibbs.

Gibbs spoke with a number of other operators using Z-drives for conventional towing work and says, "Whereas the Z-drives cost more up front, in the long run the efficiencies, flexibility and industry demand should more than offset those costs."

For further information contact:

Travis Short Jr.
Horizon Shipyard
13980 Shell Belt Rd.
Bayou LaBatre, Alabama 36509
Phone: 334 824-1660
E-mail: horizonship@aol.com

or:

Robert Gibbs
Dixie Towing
Jacksonville, Florida
Phone: 904 249-1312
E-mail: dixie4tugz@aol.com

or:

Larry Neff
V/P Marine Marketing
Cummins Alabama Inc.
3422 Georgia Pacific Ave.
Moblie, AL 36617 U.S.A.
Work: 334 452-6426 Fax: 334 473-6657

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