Data Quality83%
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
Mizuho-class patrol vessel
Category
Country
Prime contractor
Production
1984–1988
Quantity
2
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
OFFSHORE PATROL VESSELS (OPV) · COLD WAR
4
PERFORMANCE/PRICE
78
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
◎Identification4MOD.4
- Ship TypePatrol vessel Large with Helicopter (PLH)
- Commissioned1986
- Ships in Class2
- In ServiceYes
◈Displacement2MOD.2
- Standard Displacement5,317 t
- Full Load Displacement5,317 t
▣Dimensions3MOD.3
- Length (overall)130 m
- Beam15.5 m
- Draft8.8 m
◇Complement1MOD.1
- Total Complement130
◆Propulsion7MOD.7
- Propulsion Typediesel
- Arrangement (CODAG/COGAG…)2 shafts, 2 diesel engines
- Number of Engines2
- Shafts / Screws2
- Top Speed23 kn
- Range8,500
- Nuclear-PoweredNo
▤Gun Armament4MOD.4
- Main GunOerlikon 35 mm L/90
- Main Gun Calibre35 mm
- Main Gun Count1
- Secondary GunsJM61-M 20 mm rotary cannon
⬢Missile Armament3MOD.3
▲Underwater Warfare3MOD.3
◎Aviation4MOD.4
- Embarked Helicopters2
- HangarYes
- Flight DeckYes
- UAV CapabilityNo
◈Sensors & Combat Systems3MOD.3
▣Survivability4MOD.4
◇Fleet Status6MOD.6
- Completed2
- Active1
- Cancelled0
- Lost0
- Retired1
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1984Production started
- 1988Production ended
- 1989Entered service
42
years in service
4
years in production
2
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
OFFSHORE PATROL VESSELS (OPV) RANKING Offshore Patrol Vessels (OPV) · Cold War
MASS RANKINGSMASS ↗
39OFFSHORE PATROL VESSELS (OPV)4COLD WAR · OFFSHORE PATROL VESSELS (OPV)112JAPAN · ALL WEAPONS41PERFORMANCE/PRICE · OFFSHORE PATROL VESSELS (OPV)
ⓘ Rankings are within theOffshore Patrol Vessels (OPV)category.
📖 TERMS ON THIS PAGE2terms
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