Data Quality82%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the offshore patrol vessels (opv) category.
01 / Overview
Iwami-class patrol vessel
Category
Country
Prime contractor
Production
2010–
Quantity
6
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
OFFSHORE PATROL VESSELS (OPV) · MODERN ERA
22
PERFORMANCE/PRICE
87
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the offshore patrol vessels (opv) category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Hull ClassificationPL (Patrol vessel Large)
- Ship TypeOffshore Patrol Vessel
- Builder / ShipyardMitsubishi Heavy Industries; Mitsui Engineering & Shipbuilding
- Ships in Class6
- In ServiceYes
◈Displacement2MOD.2
- Light Displacement1,000 t
- Full Load Displacement1,250 t
▣Dimensions3MOD.3
- Length (overall)92 m
- Beam11 m
- Draft5 m
◇Complement1MOD.1
- Air Wing Personnel0
◆Propulsion7MOD.7
- Propulsion Typediesel
- Arrangement (CODAG/COGAG…)conventional
- Number of Engines2
- Shaft Power5,965 kW
- Shafts / Screws2
- Top Speed21 kn
- Nuclear-PoweredNo
▤Gun Armament3MOD.3
- Main GunMk44 Bushmaster II 30 mm chain gun
- Main Gun Calibre30 mm
- Main Gun Count1
⬢Missile Armament4MOD.4
▲Underwater Warfare4MOD.4
- Torpedo Tubes0
- ASW CapabilityNo
- Hull-Mounted SonarNo
- Towed Array SonarNo
◎Aviation5MOD.5
- Embarked Helicopters0
- HangarNo
- Flight DeckYes
- Fixed-Wing Aircraft0
- UAV CapabilityNo
◈Sensors & Combat Systems3MOD.3
▣Survivability5MOD.5
- CBRN CitadelNo
- DegaussingNo
- Hull Materialsteel hull, aluminium alloy superstructure
- Stealth ShapingNo
- Automated Damage ControlNo
◇Fleet Status7MOD.7
- Completed6
- Active6
- Under Construction0
- Cancelled0
- Lost0
- Retired0
- Preserved0
◆Armour2MOD.2
- Belt Armour0 mm
- Deck Armour0 mm
03 / History
SERVICE LIFESPANStill in Service
- 2007Entered service
- 2010Production started
16
years in service
6
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
OFFSHORE PATROL VESSELS (OPV) RANKING Offshore Patrol Vessels (OPV) · Modern Era
MASS RANKINGSMASS ↗
47OFFSHORE PATROL VESSELS (OPV)22MODERN ERA · OFFSHORE PATROL VESSELS (OPV)122JAPAN · ALL WEAPONS1PERFORMANCE/PRICE · OFFSHORE PATROL VESSELS (OPV)
ⓘ Rankings are within theOffshore Patrol Vessels (OPV)category.
📖 TERMS ON THIS PAGE1terms
The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources