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Warships1991–present
Ocean surveillance ship
Hibiki-class surveillance ship is a ocean surveillance ship. It was built by Mitsui Engineering & Shipbuilding. Reported operators include Japan Maritime Self-Defense Force.
JapanMitsui Engineering & Shipbuilding
Japan Maritime Self-Defense Force
1989–2026
1991–present
4
4
4
Ocean surveillance ship
Standard: 2,850 t (2,800 long tons; 3,140 short tons) ( Hibiki and Harima ) 2,900 t (2,900 long tons; 3,200 short tons) ( Aki and Bingo ) Full load: 3,800 t (3,700 long tons; 4,200 short tons)
67 m (219 ft 10 in)
29.9 m (98 ft 1 in)
7.5 m (24 ft 7 in)
3,000 hp (2,200 kW)
4 x Mitsubishi S6U-MPTK diesel engines 2 x shafts
11 kn (20 km/h; 13 mph)
3,800 nmi (7,000 km; 4,400 mi) (at 10 kn (19 km/h; 12 mph))
40
OPS-18-1 surface search OPS-29 for navigation OPS-26 for navigation AN/UQQ-2 towed array sonar
Helipad
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Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 67 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 67 m | Wikipedia contributors | approved |
Hibiki-class surveillance ship equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
JapanMaritime Self-Defense Force exact named equipment holdings: Hibiki. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: LOGISTICS AND SUPPORT / AGOS. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Maritime Self-Defense Force exact named class holdings of Hibiki. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only, not a national or parent-force total or combat-readiness measure. Source role(s): LOGISTICS AND SUPPORT / AGOS. No heading aggregate, carried armament, crew, payload, factory production or future order count inherited. The own fetched design source declares this exact class and its PDF operator country; ship capacities and fitted launcher/armament counts are retained as source scope, not added to hull quantities.