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Oil spill response vessel
Finnish pollution control vessel Louhi is a oil spill response vessel originating in Finland. It was built by Uki Workboat Ltd. Reported operators include Finnish Navy.
FinlandLouhi
Louhi
Finnish Environment Institute
Finnish Navy
26 October 2007
Uki Workboat Ltd
€ 48 million
NB27184
15 April 2009
8 March 2011
May 2011
Upinniemi , Finland
Call sign : OJBP MMSI number : 230616000 IMO number : 9500845
In service
Oil spill response vessel
2,200 tons (lightship) 3,450 tons (max)
71.4 m (234.3 ft)
14.5 m (47.6 ft)
24.0 m (78.7 ft)
5.0 m (16.4 ft)
1A Super
4 × Wärtsilä 9L20 (4 × 1,800 kW)
Diesel-electric Two Rolls-Royce azimuth thrusters (2 × 2,700 kW) Bow thruster (500 kW)
15 knots (28 km/h; 17 mph) in open water
6,000 nautical miles (11,000 km; 6,900 mi)
20 days
1,200 m 3 for recovered oil 200 m 3 for chemicals
10–15; accommodation for 40 personnel
Can be armed during crisis
Louhi (pennant number 999) is a Finnish multipurpose oil and chemical spill response vessel owned by the Finnish Environment Institute (SYKE), but crewed and operated by the Finnish Navy .
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Finnish pollution control vessel Louhi equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
FinlandNavy exact named equipment holdings: Louhi. 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: LOGISTICS AND SUPPORT / AG. 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 exact named Louhi component holdings; active, operational-reserve and training equipment excluding equipment in store, except explicit status exclusions stated below. November 2025 IISS assessment. Named service only, not a national total or combat-readiness measure. Source armament/capacity counts are excluded. Exact named ship/class source holdings only; armament fits, crew, displacement, other country vessels, completed production and weapon or missile stocks are excluded. The own source states Finnish EnvironmentInstitute ownership and FinnishNavy crew/operation. This is the source FinnishNavy Louhi holding, not an inference from civil ownership or two other pollution-control ships.
Reported count for Louhi class. Service scope: Finnish Navy ships; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: active; no other stock status or total inferred. Count column(s): in service: 1. Origin: Finland. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.