Spence (tugboat)

Spence

History
United States
Owner	TransAtlantic Lines[2]
Builder	Bollinger Machine Shop & Ship Yard Inc.[2]
Completed	1 September 1974[2]
Identification	Call sign WDC4261[1] IMO number: 7506780[1]
Fate	Sank on 14 December 2015
General characteristics
Tonnage	189 GT[2] 129 DWT[2]
Length	27.78 m (91.1 ft)[2]
Beam	7.92 m (26.0 ft)[2]
Depth	3.50 m (11.5 ft) molded depth[2]
United States
Name	McAllister Dispatcher (1983–1985) Boston Trader' (1985–1988) Columbia Boston (1988–2002) Guantanamo Bay Express(2002–)[3]
Owner	TransAtlantic Lines[3]
Builder	Misener Industries Inc.[3]
Completed	1 September 1983[3]
Identification	IMO number: 8639118
General characteristics
Tonnage	2,529 GT[3]
Length	76.2 m (250 ft)[3]
Beam	21.95 m (72.0 ft)[3]
Depth	4.88 m (16.0 ft) molded depth[3]
Approximate route of the tugboat Spence and barge Guantanamo Bay Express

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.^[4] Each leg of the trip takes approximately 4+1⁄2 days and covers approximately 1,000 miles (1,600 km). Unloading the barge can take up to five days.