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Mogami class
Mitsubishi Heavy Industries (MHI) Mitsui Engineering and Shipbuilding
Japan Maritime Self-Defense Force
Abukuma class
New FFM (Upgraded Mogami class)
¥ 50.0 billion (2017 estimate) ($450 million at 2017 exchange rate)
2019–present
2022–present
2022–present
12
2
10
10
Frigate
3,900 tons standard 5,500 tons full load
132.5 m (434 ft 9 in)
16.3 m (53 ft 6 in)
~4.5 m (14 ft 9 in)
9 m (29 ft 6 in)
CODAG 1 × Rolls-Royce MT30 gas turbine 2 × MAN Diesel V28/33DD STC engine Total 70,000 HP
over 30 knots (56 km/h; 35 mph)
2 × RHIB , UUV , USV
around 90
OPY-2 (X-band multi-purpose AESA radar) OAX-3(EO/IR) OQQ-25 ( VDS + TASS ) – ASW OQQ-11 (Mine-hunting sonar) OYQ-1 (Combat management system) OYX-1-29 (Console display system)
NOLQ-3E ( Passive radar system + Electronic attack capability is integrated into the main radar antenna), Chaff dispenser
1 × 5 in (127 mm) Mk-45 Mod 4 naval gun 2 × missile canisters for a total of 8 Type 17 anti-ship missiles 1 × SeaRAM Type 12 torpedoes Simplified mine laying equipment 16 × Mk-41 VLS Type 07 VLA 2 × Remote weapon station
1 × SH-60L helicopter
Single hangar
The Mogami -class frigate ( Japanese : もがみ型護衛艦 , romanized : Mogami-gata-goei-kan ), also known as 30FFM , 30FF , 30DX , or 30DEX , is a Japanese, multi-mission stealth frigate for the Japan Maritime Self-Defense Force (JMSDF).
The vessel has a length of 130 metres (426 ft 6 in), a breadth of 16 metres (52 ft 6 in), a standard displacement of 3,900 metric tons (3,800 long tons) with a full load displacement of about 5,500 metric tons (5,400 long tons).
The vessel has a length of 130 metres (426 ft 6 in), a breadth of 16 metres (52 ft 6 in), a standard displacement of 3,900 metric tons (3,800 long tons) with a full load displacement of about 5,500 metric tons (5,400 long tons).
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 | 132.5 m | Wikipedia contributors | approved |
| 28 Sept 2026 | 132.5 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 132.5 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 132.5 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 132.5 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 132.5 m | Wikipedia contributors | superseded |
Mogami-class frigate equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
JapanMaritime Self-Defense Force exact named class holdings of Mogami. 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): PRINCIPAL SURFACE COMBATANTS / FFGHM. No heading aggregate, carried armament, crew, payload, factory production or future order count inherited. Family total is the sum of the separately printed nonoverlapping exact model components, each explicitly declared by its own source; no parent or sibling variant identity inferred. 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.
Reported count for Mogami -class. Service scope: Japan Maritime Self-Defense Force ships; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: ordered; no other stock status or total inferred. Count column(s): in service: +2. Origin: unstated. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
