Photos by David K. Stall
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With a 75-ton bollard pull capacity the $8 million Thor is one of the most powerful ship-assist tugs in Texas. The 98-foot Thor, built by Main Iron Works of Louisiana is powered by a 6,300 horsepower z-drive (Z-Tech 7500 series) using two 16-cylinder Caterpiller 3500 HD engines. Propulsion is provided by two five-blade 106-inch stainless steel propellers. The Thor is equipped with a Markey ship-assist hawser bow winch. The Thor owned and operated by Suderman & Young was placed in service in 2007