Data Quality87%
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
No.28-class submarine chaser
Category
Country
Production
1939–1944
Quantity
49
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
PATROL BOATS & FAST ATTACK CRAFT · WORLD WAR II
29
PERFORMANCE/PRICE
87
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
◎Identification7MOD.7
- Hull ClassificationNo.28-class submarine chaser
- Ship TypeSubmarine chaser
- Builder / ShipyardVarious Japanese shipyards
- Laid Down1939
- Commissioned1940
- Ships in Class49
- In ServiceYes
◈Displacement1MOD.1
- Standard Displacement420 t
▣Dimensions3MOD.3
- Length (overall)51 m
- Beam6.7 m
- Draft2.63 m
◇Complement1MOD.1
- Total Complement80
◆Propulsion9MOD.9
- Propulsion TypeDiesel
- Arrangement (CODAG/COGAG…)2 shafts
- Number of Engines2
- Shaft Power1,253 kW
- Shafts / Screws2
- Top Speed16 kn
- Cruise Speed14 kn
- Range2,000
- Nuclear-PoweredNo
▤Gun Armament4MOD.4
- Main Gun76.2 mm L/40 AA gun
- Main Gun Calibre76.2 mm
- Main Gun Count1
- Secondary GunsType 93 13.2 mm AA guns, Type 96 25 mm AA guns
⬢Missile Armament3MOD.3
▲Underwater Warfare4MOD.4
- Torpedo Tubes0
- ASW CapabilityYes
- Hull-Mounted SonarYes
- Towed Array SonarNo
◎Aviation5MOD.5
- Embarked Helicopters0
- HangarNo
- Flight DeckNo
- Fixed-Wing Aircraft0
- UAV CapabilityNo
◈Sensors & Combat Systems6MOD.6
- Air-Search Radar22-Gō surface search radar
- Surface / Fire-Control Radar22-Gō surface search radar
- Phased-Array RadarNo
- Combat SystemType 3 active sonar, Type 93 hydrophone
- Aegis / EquivalentNo
- Electronic WarfareNo
▣Survivability5MOD.5
- CBRN CitadelNo
- DegaussingNo
- Hull MaterialSteel
- Stealth ShapingNo
- Automated Damage ControlNo
◇Fleet Status7MOD.7
- Completed49
- Under Construction0
- Planned77
- Cancelled28
- Lost35
- Retired14
- Preserved0
◆Armour1MOD.1
- ArmourNone
03 / History
SERVICE LIFESPANStill in Service
- 1939Production started
- 1944Production ended
87
years in service
5
years in production
49
units produced
1
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
04 / Variants
▚ WEAPON FAMILY
No.28-class submarine chaser 
06 / MASS Score
PATROL BOATS & FAST ATTACK CRAFT RANKING Patrol Boats & Fast Attack Craft · World War II
MASS RANKINGSMASS ↗
275PATROL BOATS & FAST ATTACK CRAFT29WORLD WAR II · PATROL BOATS & FAST ATTACK CRAFT383JAPAN · ALL WEAPONS17PERFORMANCE/PRICE · PATROL BOATS & FAST ATTACK CRAFT
ⓘ Rankings are within thePatrol Boats & Fast Attack Craftcategory.
📖 TERMS ON THIS PAGE2terms
Anti-Submarine Warfare. Capability to detect, track, and engage submarines.
Sonar system installed on the hull of a ship, used for underwater detection and navigation by emitting and receiving sound waves.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources