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Kaiten-classhumantorpedo

Midget / Coastal Submarines · Japan · 1944
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Kaiten-classhumantorpedo

Kaiten-class human torpedo
Kaiten-class human torpedo Photo: Wikimedia Commons · CC BY-SA 4.0
* Absolute score — assessed within category · no era adjustment
Stealth
30
Compactness
70
Special-Ops Capability
20
Littoral Suitability
60
Sensors
10
Endurance
15
Firepower
40
Survivability
25
Technology
5
Cost-Effectiveness
85
Origin Japan
CategoryMidget / Coastal Submarines
EraWorld War II
In service1944–1945
Operators1 countries
Quantity420
Data Quality85%
34
Midget / Coastal Submarines MASS Rating
17/18
World War II
43/50
All-Time
Midget / Coastal Submarines · 10 axes scored
Stealth
30
Compactness
70
Special-Ops Capability
20
Littoral Suitability
60
Sensors
10
Endurance
15
Firepower
40
Survivability
25
Technology
5
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the midget / coastal submarines category.
01 / Overview
Kaiten-class human torpedo
Country
Production
1944–1945
Quantity
420
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MIDGET / COASTAL SUBMARINES · WORLD WAR II
17
PERFORMANCE/PRICE
15
UNIT COST (2025 USD)
—
34
midget / coastal submarines category
ⓘ Performance/Price and MASS score are computed across all units in the midget / coastal submarines category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
  • Hull ClassificationKaiten-class
  • Submarine Typesuicide torpedo
  • Builder / ShipyardImperial Japanese Navy
  • Laid Down1944
  • Commissioned1944
  • Boats in Class420
  • In ServiceYes
◈Displacement & Dimensions4MOD.4
  • Surfaced Displacement8.3 t
  • Submerged Displacement18.37 t
  • Length14.75 m
  • Beam1 m
▣Propulsion7MOD.7
◇Diving & Endurance3MOD.3
  • Test Depth40 m
  • Maximum Operating Depth80 m
  • Complement (crew)1
▤Sensors1MOD.1
  • Combat Systemmanual gyroscopic stabilisation and automatic running
▲Production2MOD.2
  • First of Class1944
  • Operators1
◎Fleet Status4MOD.4
  • Completed420
  • Active0
  • Under Construction0
  • Retired420
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1944Production started
  3. 1945Production ended
82
years in service
1
years in production
420
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE2terms
Anti-ship missiles are guided missiles designed to engage and destroy naval vessels. They are typically used by aircraft, ships, or submarines to attack enemy ships.
Type of internal combustion engine fuel, refined from crude oil.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Midget / Coastal Submarines entry →