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ingalls sea mule

  1. SEA MULE

    SEA MULE

    Accompanying text: "Powerfull new U.S. Tug at work. A new U.S. tug, most powerful of its size and known as the Ingalls Sea Mule, tows a heavily-laden barge during trials in a U.S. port. Easiliy handled by a crew of five, the Sea Mule can either tow or push barges in harbour operations. Forty-two fee
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