Data Quality85%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the patrol boats & fast attack craft category.
01 / Overview
Shōkai Maru-class high-powered tugboat
Category
Country
Prime contractor
Production
1938–1939
Quantity
2
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
PATROL BOATS & FAST ATTACK CRAFT · INTERWAR PERIOD
28
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the patrol boats & fast attack craft category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Hull Classificationtugboat
- Ship Typegunboat
- Builder / ShipyardHitachi Zosen Corporation, Ōsaka Iron Works
- Ships in Class2
- In ServiceYes
◈Displacement1MOD.1
- Standard Displacement175 t
▣Dimensions3MOD.3
- Length (overall)41.2 m
- Beam6 m
- Draft2.8 m
◇Propulsion6MOD.6
- Propulsion Type2 × diesels, 700 bhp
- Number of Engines2
- Shaft Power522 kW
- Shafts / Screws2
- Top Speed14 kn
- Nuclear-PoweredNo
◆Gun Armament3MOD.3
- Main Guntank gun
- Main Gun Count1
- Secondary GunsLMG
▤Missile Armament3MOD.3
⬢Underwater Warfare3MOD.3
▲Aviation5MOD.5
- Embarked Helicopters0
- HangarNo
- Flight DeckNo
- Fixed-Wing Aircraft0
- UAV CapabilityNo
◎Sensors & Combat Systems3MOD.3
◈Survivability5MOD.5
- CBRN CitadelNo
- DegaussingNo
- Hull Materialsteel
- Stealth ShapingNo
- Automated Damage ControlNo
▣Fleet Status6MOD.6
- Completed2
- Under Construction0
- Planned2
- Cancelled0
- Retired1
- Preserved0
◇Armour1MOD.1
- Armour}}
03 / History
SERVICE LIFESPANStill in Service
- 1938Production started
- 1939First deployment: World War II
88
years in service
1
years in production
2
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
PATROL BOATS & FAST ATTACK CRAFT RANKING Patrol Boats & Fast Attack Craft · Interwar Period
MASS RANKINGSMASS ↗
343PATROL BOATS & FAST ATTACK CRAFT28INTERWAR PERIOD · PATROL BOATS & FAST ATTACK CRAFT474JAPAN · ALL WEAPONS66PERFORMANCE/PRICE · PATROL BOATS & FAST ATTACK CRAFT
ⓘ Rankings are within thePatrol Boats & Fast Attack Craftcategory.
📚 Sources