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Baltimore (tug) : ウィキペディア英語版 | Baltimore (tug)
''Baltimore'' is a preserved steam-powered tugboat, built in 1906 by the Skinner Shipbuilding Company of Baltimore, Maryland. She is the oldest operating steam tugboat in the United States. ''Baltimore'' was built and operated as a harbor inspection tug, capable of acting as a municipal tugboat for city barges, as well as an official welcoming vessel and VIP launch, an auxiliary fireboat, and as a light icebreaker. She was declared a National Historic Landmark in 1993,〔 and is part of the Baltimore Museum of Industry. The Baltimore and Chesapeake Steamboat Co., a nonprofit organization, was established to maintain the tugboat. ==Description== ''Baltimore'' is equipped with a compound reciprocating steam engine, fed by a scotch marine boiler. Hull construction is rivetted iron, with a wooden deckhouse. The wrought iron hull has proven to be more durable than steel or wood. Displacement measures 81 gross tons and 55 net tons. The hull form is typical for its time, with an upright stem, moderate sheer and elliptical stern. Bulwarks are vertical about the stern rather than inwardly-sloped as in more modern designs.〔〔 〕
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