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Ha-3-class submarine
Photo: Unknown author · Wikimedia Commons · Public domain
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Ha-3-classsubmarine

Midget / Coastal Submarines · Japan · 1910
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Ha-3-classsubmarine

Ha-3-class submarine
Ha-3-class submarine Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Stealth
30
Compactness
60
Special-Ops Capability
10
Littoral Suitability
50
Sensors
5
Endurance
20
Firepower
15
Survivability
25
Technology
10
Cost-Effectiveness
80
Origin Japan
ManufacturerVickers Shipbuilding and Engineering
CategoryMidget / Coastal Submarines
EraPre-WWI / Industrial Age
In service1910–1911
Operators1 countries
Quantity3
Data Quality84%
28
Midget / Coastal Submarines MASS Rating
4/5
Pre-WWI / Industrial Age
49/50
All-Time
Midget / Coastal Submarines · 10 axes scored
Stealth
30
Compactness
60
Special-Ops Capability
10
Littoral Suitability
50
Sensors
5
Endurance
20
Firepower
15
Survivability
25
Technology
10
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the midget / coastal submarines category.
01 / Overview
Ha-3-class submarine
Country
Production
1910–1911
Quantity
3
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MIDGET / COASTAL SUBMARINES · PRE-WWI / INDUSTRIAL AGE
4
PERFORMANCE/PRICE
35
UNIT COST (2025 USD)
—
28
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 ClassificationHa-3-class
  • Submarine TypeMidget / Coastal Submarine
  • Builder / ShipyardVickers Shipbuilding and Engineering
  • Laid Down1910
  • Commissioned1911
  • Boats in Class3
  • In ServiceYes
◈Displacement & Dimensions5MOD.5
  • Surfaced Displacement291 t
  • Submerged Displacement326 t
  • Length43.3 m
  • Beam4.14 m
  • Draft3.43 m
▣Propulsion6MOD.6
◇Diving & Endurance2MOD.2
  • Test Depth30.5 m
  • Complement (crew)26
◆Armament4MOD.4
▤Fleet Status1MOD.1
  • Retired3
03 / History
SERVICE LIFESPANRetired
  1. 1910Production started
  2. 1911Production ended
116
years in service
1
years in production
3
units produced
0
countries operating
ⓘ 1 countries retired 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.
A type of internal combustion engine that generates power using a turbine driven by gas expansion.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Midget / Coastal Submarines entry →