Although little known and mostly anonymous, members of the "Dungaree Navy" are essential contributors to the operations, maintenance and readiness of the U.S. battle force. They include a variety of tugboats, barges, floating dry docks, lighters and scores of other "blue collar" vessels such as range tenders, floating derricks and ferries. These behind-the-scenes workhorses of the Navy are collectively known as "service craft." With more...