In this special Ship Report, I talk with retired tugboat Captain Phil Martin, all about the business of hauling things by tug and barge. Tugs and barges are among the workhorses of the merchant fleet, and barges are by far generally the most economical means of hauling cargo. Today we also talk about an interesting question: Since all voyages must end, and there are no brakes at sea, how do you stop a tug and barge?