Page 35: of Marine News Magazine (February 2015)

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INLAND TOWBOAT DESIGN “The beauty of the TSGI design is that it marries these bene? ts with the proven bene? ts of utilizing z-drives on a towboat. These ef? ciencies provide an owner with combined operational cost savings that can exceed 35% of the cost of operating a conventional towboat.” – Ed Shearer, TSGI’s Principal Naval Architect

The cost premium for both Z-drives and the LNG propul- applications like towboats are widely understood. He adds sion component also has to be considered. But, the design enthusiastically, “The beauty of the TSGI design is that it team says those costs are tempered by the savings z-drives marries these bene