"Columbia Boston (1988\u20132002)"@en . "Guantanamo Bay Express(2002\u2013)"@en . "27.78"^^ . "Tugboat Spence and her barge Guantanamo Bay Express are owned by the American shipping company TransAtlantic Lines LLC. Together, they make a twice-monthly trip between Naval Station Mayport; near Jacksonville, Florida; and Naval Station Guantanamo Bay in Cuba. Each leg of the trip takes approximately 4 1\u20442 days and covers approximately 1,000 miles (1,600 km). Unloading the barge can take up to five days."@en . "McAllister Dispatcher (1983\u20131985)"@en . "76.2"^^ . "7.92"^^ . . "21.95"^^ . "1983-09-01Z"^^ . . "''Boston Trader' (1985\u20131988)"@en . . "1974-09-01Z"^^ .