Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the midget / coastal submarines category.
01 / Overview
SX-404 class midget submarine
Category
Country
Production
1966–1972
Quantity
10
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MIDGET / COASTAL SUBMARINES · COLD WAR
4
PERFORMANCE/PRICE
68
UNIT COST (2025 USD)
—
ⓘ 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 ClassificationMidget submarine
- Submarine TypeMidget submarine
- Builder / ShipyardCos.Mo.S
- Laid Down1966
- Commissioned1972
- Boats in Class10
- In ServiceNo
◈Displacement & Dimensions3MOD.3
- Surfaced Displacement41 t
- Length16 m
- Beam2 m
▣Propulsion5MOD.5
- PropulsionDiesel-Electric
- Nuclear-PoweredNo
- Propulsor TypeDiesel-electric
- Top Speed (surfaced)11 kn
- Top Speed (submerged)6 kn
◇Diving & Endurance3MOD.3
- Test Depth100 m
- Submerged Endurance14 day
- Complement (crew)16
◆Production2MOD.2
- First of Class1966
- Operators3
▤Fleet Status3MOD.3
- Completed10
- Lost1
- Preserved1
03 / History
SERVICE LIFESPANStill in Service
- 1966Production started
- 1971Entered service
- 1972Production ended
60
years in service
6
years in production
10
units produced
1
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
05 / MASS Score
MIDGET / COASTAL SUBMARINES RANKING Midget / Coastal Submarines · Cold War
MASS RANKINGSMASS ↗
21MIDGET / COASTAL SUBMARINES4COLD WAR · MIDGET / COASTAL SUBMARINES20PAKISTAN · ALL WEAPONS31PERFORMANCE/PRICE · MIDGET / COASTAL SUBMARINES
ⓘ Rankings are within theMidget / Coastal Submarinescategory.
📖 TERMS ON THIS PAGE1terms
Propulsion system combining diesel engines to generate electricity, which powers electric motors driving the vessel's propellers.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources