USCGC Liberty (WPB-1334)

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USCGC Liberty, off the coast of Southeast Alaska, 2008.
United States
Name: USCGC Liberty
Status: Active in service as of 2012
General characteristics
Class and type: Island-class patrol boat
Displacement: 168 tons
Length: 110 feet
Beam: 21 feet
Propulsion: 2 diesel engines
Speed: 28 knots
Complement: 2 officers, 16 enlisted

USCGC Liberty (WPB-1334) is an Island-class cutter of the United States Coast Guard. She is homeported in Auke Bay, Alaska, near Juneau, where she patrols territorial waters, including the Inside Passage. In 2016 she won the Hopley Yeaton Cutter Excellence Award for outstanding operational and humanitarian achievements. Her primary missions are search and rescue, law enforcement, force protection, and Homeland Security.[1]


The Island-class patrol boats were constructed in Bollinger Shipyards, Lockport, Louisiana. Liberty has an overall length of 110 feet (34 m). It had a beam of 21 feet (6.4 m) and a draft of 7 feet (2.1 m) at the time of construction. The patrol boat has a displacement of 154 tonnes (152 long tons; 170 short tons) at full load and 137 tonnes (135 long tons; 151 short tons) at half load. It is powered two Paxman Valenta 16 CM diesel engines. It has two 99 kilowatts (135 PS; 133 shp) 3304T diesel generators made by Caterpillar; these can serve as motor–generators. Its hull is constructed from highly strong steel, and the superstructure and major deck are constructed from aluminium.[2][3]

The Island-class patrol boats have maximum sustained speeds of 29.5 knots (54.6 km/h; 33.9 mph). It is fitted with one 25mm machine gun and two two Browning .50 Caliber Machine Guns. It is fitted with satellite navigation systems, collision avoidance systems, surface radar, and a Loran C system. It has a range of 3,330 miles (2,890 nmi; 5,360 km) and an endurance of five to twelve days. Its complement is sixteen (two officers and fourteen crew members). Island-class patrol boats are based on Vosper Thornycroft 33 metres (108 ft) patrol boats and have similar dimensions.[2][3]


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  2. ^ a b "110-foot Island Class Patrol Boat (WPB)" (PDF). United States Coast Guard. Retrieved 24 August 2015. 
  3. ^ a b "USCG 110' "Island Class" Patrol Boats (WPB)". Bollinger Shipyards. Retrieved 24 August 2015.