USCGC Biscayne Bay (WTGB-104)

USCGC Biscayne Bay (WTGB-104) is a United States Coast Guard Cutter and an icebreaking tug. She is based at Coast Guard Station St. Ignace with a primary area of operation in the Straits of Mackinac including Mackinac Island, Mackinac Bridge, and the northern portions of Lakes Michigan and Huron and occasionally Lakes Superior, Erie and their connecting rivers. Beyond her role as an icebreaker, Biscayne Bay performs search and rescue and law enforcement functions.

USCGC Biscayne Bay (WTGB-104)
USCGC Biscayne Bay (WTGB-104)
History
United States
Namesake: Biscayne Bay in southern Florida
Builder: Tacoma Boatbuilding Company
Commissioned: 8 December 1979
Homeport: St. Ignace, Michigan
Identification:
Nickname(s): Sentinel of the Straits
Status: Active
Badge:
General characteristics
Class and type: 140' Bay-class Icebreaking Tug (WTGB)
Displacement: 690 tons[1]
Length: 140 ft (43 m)[1]
Beam: 37 ft 6 in (11.43 m)[1]
Draft: 13 ft (4.0 m)
Installed power:
  • 2 × 1,426 hp (1,063 kW) Fairbanks-Morse diesel engines
  • 2 × 125 kW generators
Propulsion: 2,500 hp (1,900 kW) Westinghouse electric motor driving the main propulsion shaft
Speed: 14.7 knots (27.2 km/h; 16.9 mph)
Range: 7,413 km (4,606 mi)
Complement: 17 (3 officers, 14 enlisted)
Armament: mounts for two .50 cal machine guns
Armor: Ice belt thickness 5⁄8 in (1.6 cm)
Notes: Icebreaking capacity: 3 knots ahead - 20 in (51 cm), back and ram - 6–9 ft (1.8–2.7 m)

Design

Biscayne Bay is the fourth ship in a class of ice-breaking tugboats designed to have greater multi-mission capabilities than the 110' Calumet-class harbor tug (WYTM). The most significant differences include: greater horsepower, greater speed, longer range, increased ice-breaking capability, a hull lubrication system (bubbler), greater degree of automation, and better habitability.[2]

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References
  1. "USCGC Biscayne Bay Cutter Characteristics" (pdf). Ninth Coast Guard District. United States Coast Guard. Retrieved 13 January 2012.
  2. Hunt, Robert R.; Hundley, Lowry L. (1979). "Katmai Bay (WTGB-101) Speed, Tactical, and Maneuvering Trials". Bethesda, Maryland: David W Taylor Naval Ship Research And Development Center. Retrieved 10 March 2009. Cite journal requires |journal= (help)


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