The Island-class patrol boats were constructed in Bollinger Shipyards, Lockport, Louisiana. Washington has an overall length of 110 feet (33.5 m). she has 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 aluminum.[5][6]
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 mm (0.98 in) machine gun and two 7.62 mm (0.30 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 m (108 ft) patrol boats and have similar dimensions.[5][6]
^"Coast Guard participates in Operation Kurukuru". DVIDSHUB. Palau. 2019-10-06. Retrieved 2020-04-06. Lt. j.g. Victor Broskey, the Coast Guard Cutter Washington's (1331) executive officer, takes part in a navigation brief on the cutter's bridge prior to getting underway to participate in Operation Kurukuru off Palau, Oct. 6, 2019.