Hyūga-class helicopter destroyer

	Hyūga at sea
Class overview
Name	Hyūga class
Builders	IHI Marine United
Operators	Japan Maritime Self-Defense Force
Preceded by	Shirane class
Succeeded by	Izumo class
Built	2006–2011
In commission	2009–present
Completed	2
Active	2
General characteristics
Type	ASW carrier
Displacement	13,950 tons standard;; 19,000 tons full load;
Length	197 m (646 ft)
Beam	33 m (108 ft)
Draft	7 m (23 ft)
Propulsion	COGAG, 4 Ishikawajima Harima/General Electric LM2500-30 gas turbines; Two shafts 5-bladed CP props; 100,000 shaft horsepower (75 MW);
Speed	Over 30 knots (56 km/h; 35 mph)
Complement	360 (Hyūga); 371 (Ise);
Sensors and ; processing systems	ATECS (advanced technology command system); OYQ-10 advanced combat direction system; FCS-3 AAW system; OQQ-21 ASW system; NOLQ-3C EW system; OPS-20C surface search radar;
Armament	16 cells Mk 41 VLS; 16 ESSM; 12 RUM-139 VL ASROC; 2 × 20 mm Phalanx CIWS; 2 × triple 324 mm torpedo tubes; 12.7mm MG;
Aircraft carried	3 × SH-60K, 1 × MCH-101; 18 aircraft maximum;
Aviation facilities	Flight deck and enclosed hangar

The Hyūga-class helicopter destroyer (ひゅうが型護衛艦, Hyūga-gata-goei-kan) is a class of helicopter carrier built for the Japan Maritime Self-Defense Force (JMSDF). Two - Hyūga and Ise - were built; upon completion the class were the largest ships built for the Japanese navy since the Second World War. Hyūga was described in a PBS documentary as the "first Japanese aircraft carrier built since WWII".

The Hyūgas were followed by the larger Izumo class, the first being commissioned in March 2015. The Izumos replaced the Shirane-class helicopter destroyers; the Hyūgas were originally meant to replace the Shiranes.

The specifications of the Hyūga class are comparable to light aircraft carriers, such as the Italian Giuseppe Garibaldi and Spanish Príncipe de Asturias. Under the JMSDF's naming conventions, the ships are called goei-kan (護衛艦, lit. "escort ship") in Japanese and destroyer in English, as same as all the other combatant ships of JMSDF.

During development, Hyūga and Ise were provisionally named "16DDH" and "18DDH" respectively. The numbers derived from the Japanese calendar, specifically the 16th year and 18th year of the Heisei reign (2004 and 2006), when the provisional name were given.

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