USCGC Anacapa (WPB-1335)

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USCGC Anacapa (WPB-1335).jpg
Anacapa in Glacier Bay, Alaska
United States
Name: USCGC Anacapa
Namesake: Anacapa Island, California
Homeport: Petersburg, Alaska
Status: Active in service
General characteristics
Class and type: Island-class cutter
Displacement: 164 tons
Length: 110 ft (34 m)
Beam: 21 ft (6.4 m)
Draft: 6.5 ft (2.0 m)
Propulsion: Twin Paxman Valenta 16-CM RP-200M
Speed: 30+ knots
Range: 9,900 miles
Endurance: 6 days
Boats & landing
craft carried:
1 - RHI (90 HP outboard engine)
Complement: 22 personnel (3 officers, 19 enlisted)
Notes: Communications: VHF and HF

USCGC Anacapa (WPB-1335) is an Island-class cutter of the United States Coast Guard. Her class of ships were built in the 1980s and early 1990s to replace Cape-class cutters. The ship is named for Anacapa Island.

Anacapa's homeport in 2012 was Petersburg, Alaska.[1] She sank the Ryou-Un Maru in the Gulf of Alaska on April 5, 2012.


The Island-class patrol boats were constructed in Bollinger Shipyards, Lockport, Louisiana. Anacapa 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. Its hull is constructed from highly strong steel, and the superstructure and major deck are constructed from aluminum.[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 Mk 38 25 mm chain gun autocannon and 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 eighteen (three officers and fifteen crew members). Island-class patrol boats are based on Vosper Thornycroft 33 metres (108 ft) patrol boats and have similar dimensions.[2][3]

USCGC Anacapa directs streams of water into the Japanese derelict Ryou-Un Maru to sink it after shelling it. Holes from the 25 mm cannon are clearly visible in the side of the boat.


On 5 April 2012, the Anacapa assessed the derelict 165 ft Japanese squid fishing boat Ryou-Un Maru. It had been washed away from its mooring in Aomori Prefecture, Japan, by the March 2011 Tōhoku earthquake and tsunami, and had drifted unmanned for more than one year across the Pacific Ocean before it was discovered.[4][5] The Anacapa fired on the ghost ship with its Mk 38 25mm autocannon, holing and eventually sinking it with fire hoses in approximately 1,800-metre (6,000 ft) of water in the Gulf of Alaska 180 miles (290 km) off the coast of the Alaskan Panhandle.[6]


  1. ^
  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. 
  4. ^ Reynolds, Emma (30 March 2012). "Owner of Japanese ship that floated across the Pacific after tsunami doesn't want it back". Daily Mail. Retrieved 1 April 2012. 
  5. ^ カナダ、漁船漂流で警戒呼び掛け 函館の男性「沈んだかと」 (in Japanese). Hokkaido Shimbun Press. 25 March 2012. Retrieved 1 April 2012. 
  6. ^ "Coast Guard cannon fire sinks Japanese ghost ship damaged in tsunami". New York Daily News. 6 April 2012. Retrieved 23 July 2016.