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Thetis-class ocean patrol vessel
Photo: Łukasz Golowanow · Wikimedia Commons · Attribution
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Thetis-classoceanpatrolvessel

Frigates · Denmark · 1991
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Thetis-classoceanpatrolvessel

Thetis-class ocean patrol vessel
Thetis-class ocean patrol vessel Photo: Łukasz Golowanow · Wikimedia Commons · Attribution
* Absolute score — assessed within category · no era adjustment
Anti-Surface Capability
50
Air Defence
40
ASW Capability
45
Sensors
55
Versatility
60
Endurance
70
Survivability
50
Aviation
30
Technology
55
Cost-Effectiveness
85
Origin Denmark
CategoryFrigates
EraCold War
In service1991
Operators1 countries
Quantity4
Data Quality82%
MASS(Military Archive Scoring System)
51
Frigates MASS Rating
52/65
Cold War
135/245
All-Time
Frigates · 10 axes scored
Anti-Surface Capability
50
Air Defence
40
ASW Capability
45
Sensors
55
Versatility
60
Endurance
70
Survivability
50
Aviation
30
Technology
55
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the frigates category.
01 / Overview
Thetis-class ocean patrol vessel
Category
Country
Production
1991–
Quantity
4
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
FRIGATES · COLD WAR
52
PERFORMANCE/PRICE
76
UNIT COST (2025 USD)
—
51
frigates category
ⓘ Performance/Price and MASS score are computed across all units in the frigates category, regardless of era.
02 / Specs & Design
◎Identification6MOD.6
  • Hull ClassificationOcean patrol frigate
  • Ship TypeOcean patrol vessel
  • Builder / ShipyardSvendborg Skibsværft
  • Commissioned1991
  • Ships in Class4
  • In ServiceYes
◈Displacement1MOD.1
  • Standard Displacement3,500 t
▣Dimensions3MOD.3
  • Length (overall)112.3 m
  • Beam14.4 m
  • Draft6 m
◇Complement2MOD.2
  • Total Complement60
  • Air Wing Personnel4
◆Propulsion10MOD.10
  • PropulsionDiesel-Electric
  • Arrangement (CODAG/COGAG…)diesel-electric with azimuth thruster and bow thruster
  • Number of Engines3
  • Shaft Power8,820 kW
  • Shafts / Screws1
  • Top Speed21.8 kn
  • Cruise Speed15 kn
  • Range8,700
  • Endurance60 day
  • Nuclear-PoweredNo
▤Gun Armament4MOD.4
  • Main GunOTO Melara 76 mm
  • Main Gun Calibre76 mm
  • Main Gun Count1
  • Secondary Guns2 × 12.7 mm heavy machine guns, 2 × 7.62 mm light machine guns
⬢Missile Armament6MOD.6
▲Underwater Warfare4MOD.4
◎Aviation5MOD.5
◈Sensors & Combat Systems7MOD.7
▣Survivability5MOD.5
◇Fleet Status8MOD.8
  • Completed4
  • Active4
  • Under Construction0
  • Planned4
  • Cancelled0
  • Lost0
  • Retired0
  • Preserved0
◆Armour1MOD.1
  • ArmourDNV GL Ice-IA ice reinforcement
03 / History
SERVICE LIFESPANStill in Service
  1. 1991Production started
35
years in service
4
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE7terms
Anti-Submarine Warfare. Capability to detect, track, and engage submarines.
Automated Damage Control is a shipboard system that detects, assesses, and mitigates combat damage on aircraft carriers using sensors and software to enhance response speed and reduce crew workload.
Propulsion system combining diesel engines to generate electricity, which powers electric motors driving the vessel's propellers.
Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.
The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.
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
📖 ENCYCLOPEDIA Browse the Frigates entry →