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Ocean patrol frigates
Thetis-class patrol vessel is a ocean patrol frigates. It was built by Svendborg Skibsværft. Reported operators include Royal Danish Navy.
Technical data
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 29 Sept 2026 | 112.3 m | Wikipedia contributors | approved |
| 29 Sept 2026 | 112.3 m | Wikipedia contributors | superseded |
Thetis class
Svendborg Skibsværft
Royal Danish Navy
Hvidbjørnen class
1991–present
4
4
4
Ocean patrol frigates
3,500 tons, standard
112.3 m (368 ft 5 in)
14.4 m (47 ft 3 in)
37.0 m (121 ft 5 in)
6.0 m (19 ft 8 in)
DNV GL Ice-IA Finnish-Swedish ice class IA equiv.
3 × Detroit Diesel GM 16V 7163-7305 at 480 kW (640 hp) 1 × Detroit Diesel 6L-71N 1063-7005 at 120 kW (160 hp) ( EMG )
3 × MAN B&W Diesel 12v28/32A-D at 2,940 kW (3,943 hp), single shaft 1 × Brunvoll azimuth thruster (800 kW) 1 × electrical Brunvoll bow thruster (600 kW)
21.8 knots (40.4 km/h)
8,700 nmi (16,112 km) at 15 kn (28 km/h)
60 days
2 x 7 m (23 ft) RHIBs
47-60 depending on role + aircrew etc.
1 × Terma Scanter Mil 009 navigational radar 1 × Furuno FR-1505 DA surface search radar 1 × Terma SCANTER 4103 air & surface search radar 1 × SaabTech Vectronics 9LV 200 Mk 3 fire control system 1 × SaabTech CTS-36 hull-mounted sonar FLIR Systems AN/AAQ-22 SAFIRE thermal imager
3 StanFlex modules, with the following options each: 1 × OTO Melara 76 mm , only in bow slot 1 × Mk.56 VLS fitting 12 RIM-162 ESSM 8 × Harpoon Block II SSM in inclined launchers Other armament: 2 × 12.7 mm heavy machine guns 2 × 7.62 mm light machine guns
1 x Sikorsky MH-60R helicopter
Aft helicopter deck and hangar
Name Thetis class
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Thetis-class patrol vessel equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
DenmarkNavy exact named equipment holdings: Thetis. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: PATROL AND COASTAL COMBATANTS / PSOH. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Navy holdings of the exact named Thetis component: active, operational-reserve and training equipment excluding equipment in store. November 2025 IISS assessment, not combat readiness. Service-only scope, not a national total. No heading aggregate, carried armament, other design or sibling-variant quantity inherited.