Data Quality86%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the midget / coastal submarines category.
01 / Overview
Una-class midget submarine
Category
Country
Prime contractor
Production
1985–1989
Quantity
6
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MIDGET / COASTAL SUBMARINES · COLD WAR
3
PERFORMANCE/PRICE
78
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
◎Identification5MOD.5
- Hull Classificationsingle-hulled
- Submarine Typemidget submarine
- Builder / ShipyardBrodogradilište specijalnih objekata
- Boats in Class6
- In ServiceNo
◈Displacement & Dimensions5MOD.5
- Surfaced Displacement76.1 t
- Submerged Displacement87.6 t
- Length18.82 m
- Beam2.7 m
- Draft2.4 m
▣Propulsion7MOD.7
- PropulsionDiesel-Electric
- Nuclear-PoweredNo
- Air-Independent Propulsion (AIP)No
- Shaft Power36 kW
- Propulsor Typeelectric motor
- Top Speed (surfaced)7 kn
- Top Speed (submerged)8 kn
◇Diving & Endurance3MOD.3
- Maximum Operating Depth120 m
- Submerged Endurance4 day
- Complement (crew)4
◆Armament6MOD.6
- Torpedo Tubes0
- Cruise MissilesNo
- Ballistic Missiles (SLBM)No
- SLBM Count0
- Anti-Ship MissilesNo
- Mine-Laying CapableYes
▤Sensors2MOD.2
- Bow SonarKrupp Atlas
- Towed Array SonarNo
⬢Stealth1MOD.1
▲Production1MOD.1
- First of Class1985
◎Fleet Status8MOD.8
- Completed6
- Active0
- Under Construction0
- Planned6
- Cancelled0
- Lost0
- Retired6
- Preserved3
03 / History
SERVICE LIFESPANStill in Service
- 1985Production started
- 1989Production ended
41
years in service
4
years in production
6
units produced
4
countries operating
05 / MASS Score
MIDGET / COASTAL SUBMARINES RANKING Midget / Coastal Submarines · Cold War
MASS RANKINGSMASS ↗
7MIDGET / COASTAL SUBMARINES3COLD WAR · MIDGET / COASTAL SUBMARINES4CROATIA · ALL WEAPONS2PERFORMANCE/PRICE · MIDGET / COASTAL SUBMARINES
ⓘ Rankings are within theMidget / Coastal Submarinescategory.
📖 TERMS ON THIS PAGE2terms
Propulsion system combining diesel engines to generate electricity, which powers electric motors driving the vessel's propellers.
Laying explosive mines underwater from a submarine.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources