Bay-class tugboat
 The U.S. Coast Guard CutterThunder Bayclears a channel for vessels to navigate the frozen Hudson River
| |
| Class overview | |
|---|---|
| Name | Bay class |
| Builders | Tacoma Boatbuilding Company,Tacoma, WashingtonandBay City Marine Incorporated,National City,California |
| Operators | United States Coast Guard |
| Preceded by | WYTM-110 |
| Built | 1977-1987 |
| In commission | 1979-present |
| Planned | 10 |
| Completed | 9 |
| Active | 9 |
| Retired | 0 |
| General characteristics | |
| Type | Icebreakingtugboat |
| Displacement | 662 tons |
| Length | 42.7 m (140 ft) |
| Beam | 11.4 m (37 ft 5 in) |
| Draught | 3.8 m (12 ft 6 in) |
| Propulsion | diesel electric: 2 Fairbanks Morse diesel engines with Westinghouse DC generators, 1 Westinghouse DC motor |
| Speed | 14.7 knots (27.2 km/h) |
| Range |
|
| Complement | 17 (3 officers) |
| Armament | 2 ×M240 machine guns |
TheBay-class tugboatis a class of 140-foot (43 m) icebreakingtugboatsof theUnited States Coast Guard,with hull numbers WTGB-101 through to WTGB-109.
They can proceed through fresh water ice up to 20 inches (51 cm) thick, and break ice up to 3 feet (0.91 m) thick, through ramming. They can also rampressure ridgesof up to eight feet in thickness. These vessels are equipped with a system to lubricate their progress through the ice, by bubbling air through the hull.
Service Life Extension Program (SLEP)
[edit]A SLEP is a major overhaul intended to extend a vessel's service life; it is typically scheduled as the vessel approaches the end of its originally planned service life. The Bay-class tugboat SLEP project includes significant system upgrades and improvements to the propulsion plant; to the heating, ventilation, and air conditioning systems; installation of an engine-room fire-suppression system; boat launching davit replacement; Oily Water Separator replacement; stack exhaust configuration modifications; hull air-ice lubrication system; and crew habitability improvements to meet current standards (including removal of lead paint). When the Coast Guard described the Bay-class tugboat SLEP to the U.S. Congress in 2015, the first SLEP was scheduled to take 12 months; however, the Coast Guard anticipated that after the third SLEP theCoast Guard Yardwould have enough familiarity with the process to complete two SLEPs per year, with an anticipated duration of 9 months each. The first of nine cutters (Morro Bay) entered SLEP at the Coast Guard Yard on July 1, 2014.[1]Morro Bayreturned to her homeport of Cleveland in September 2015[2]
Ships
[edit]- (WTGB-101)Katmai Bay(Homeport -Sault Ste. Marie, MI/ Builder:Tacoma Boatbuilding Company)
- (WTGB-102)Bristol Bay(Homeport -Detroit, MI/ Builder: Tacoma Boatbuilding Company)
- (WTGB-103)Mobile Bay(Homeport -Sturgeon Bay, WI/ Builder: Tacoma Boatbuilding Company)
- (WTGB-104)Biscayne Bay(Homeport -St. Ignace, MI/ Builder: Tacoma Boatbuilding Company)
- (WTGB-105)Neah Bay(Homeport -Cleveland, OH/ Builder: Tacoma Boatbuilding Company)
- (WTGB-106)Morro Bay(Homeport -Cleveland, OH/ Builder: Tacoma Boatbuilding Company]
- (WTGB-107)Penobscot Bay(Homeport -Bayonne, NJ/ Builder: Bay City Marine Incorporated)
- (WTGB-108)Thunder Bay(Homeport -Rockland, ME/ Builder: Bay City Marine Incorporated)
- (WTGB-109)Sturgeon Bay(Homeport - Bayonne, NJ / Builder: Bay City Marine Incorporated)
- (WTGB-110)Curtis Bay(Construction cancelled)
See also
[edit]- Bay-class lifeboat- three vessels with theCanadian Coast Guard
- Samuel Risley-class icebreakerand buoy tender with theCanadian Coast Guard
References
[edit]- ^https:// dhs.gov/sites/default/files/publications/OCFO/United%20States%20Coast%20Guard%20(USCG)%20-%20Coast%20Guard%20Yard%20Dry-dock%20Facilities%20and%20Industrial%20Equipment.pdf.Archived2016-11-17 at theWayback Machine
- ^http:// uscgnews /go/doc/4007/2605666/Coast-Guard-Cutter-Morro-Bay-returns-to-Cleveland-following-14-month-overhaul[permanent dead link]
External links
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