Namesake Grand Isle, Louisiana Displacement 153 long tons (155 t) Endurance 5 days 0 hours | Commissioned 1991 Length 34 m | |
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Name USCGC Grand Isle (WPB-1338) Status in active service, as of 2012 Class and type C-series Island-class patrol boat Builder Bollinger Shipyards, L.L.C. | ||
The USCGC Grand Isle (WPB-1338) is an Island-class patrol boat operated by the United States Coast Guard. She is based in Gloucester, Massachusetts, and named after Grand Isle, Louisiana.
In January 2012 the Grand Isle returned to Gloucester after repairs that took six months. When she entered the Baltimore dockyard in the summer of 2011 she was estimated to require $1.6 million USD in repairs, repairs that would take eight weeks. However more extensive repairs were required, which took longer, and cost $2.7 million USD.
As of December, 2016 the Grand Isle was transferred to the Pakistan Maritime Security Agency under the Office of International Acquisition’s Excess Defense Articles (EDA) Program, together with sister ship Key Biscayne.
Design
The Island-class patrol boats were constructed in Bollinger Shipyards, Lockport, Louisiana. Grand Isle 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 or two Caterpillar 3516 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.
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 25 millimetres (0.98 in) machine gun and two 7.62 millimetres (0.300 in) M60 light machine guns; it may also be fitted with 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 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.