Japanese patrol boat Shikishima

The Japanese patrol boat Shikishima is a Shikishima-class patrol vessel of the Japan Coast Guard (JCG). She was built by Ishikawajima-Harima Heavy Industries, Tokyo.

Shikishima on July 7, 2007
History
Japan
Name:	Shikishima
Builder:	Ishikawajima-Harima Heavy Industries
Laid down:	August 24, 1990
Launched:	June 27, 1991
Commissioned:	April 8, 1992
Identification:	IMO number: 9009566 MMSI number: 431004000 Callsign: JPHH Pennant number PLH-31
Status:	Active
General characteristics
Displacement:	6,500 GT
Length:	150.0 m (492 ft 2 in)
Beam:	16.5 m (54 ft 2 in)
Draft:	9.0 m (29 ft 6 in)
Propulsion:	2 × shafts 4 × diesel engines
Speed:	25 knots (46 km/h; 29 mph)
Range:	20,000 nmi (37,000 km; 23,000 mi)
Sensors and processing systems:	OPS-14 2D Air search
Armament:	2 × Oerlikon 35 mm twin cannon 2 × JM61 20mm gun
Aircraft carried:	2 × Eurocopter AS332

Planned to guard plutonium transport ships, the Shikishima class is the largest and heaviest-equipped patrol vessel of the JCG. With her cruising capacity, she can make voyages from Japan to Europe without making any calls.

She is the only JCG ship equipped with anti-air radar and Oerlikon 35 mm twin cannons, so she has increased anti-air firepower. Usually, PL (Patrol vessels, Large) have only a navigation radar and a single-mounted 35 mm or 40 mm autocannon. And the JM61 20 mm Vulcan on the single-mounted remote weapon system later became a model for the 20 mm RFS (Remote Firing System), which is on modern PMs and PSs such as the Tsurugi-class PS. The OPS-14 2D air search radar is the Japanese counterpart of the American AN/SPS-49.

At present, she is frequently sent on long cruises to Southeast Asia to foster international cooperation against piracy in the Strait of Malacca. She is also assigned to the policing mission of Senkaku Islands because of her cruising capacity. There are plans for more ships of this design to be constructed.