Hämeenmaa-class minelayer

The Hämeenmaa-class minelayers (Finnish: Hämeenmaa-luokan miinalaiva) is a two-vessel strong class of coastal minelayers, used by the Finnish Navy.

MLC Uusimaa
Class overview
NameHämeenmaa
Operators Finnish Navy
Preceded byFinnish minelayer Pohjanmaa
Succeeded byPohjanmaa-class corvette
Completed2
Active2
General characteristics
Class and typeHämeenmaa
TypeMLC = Minelayer, Coastal
Displacement1,450 tons
Length77.8 m (255 ft)
Beam11.6 m (38 ft)
Draught3.2 m (10 ft)
Installed power2 × Wärtsilä Vasa 16V22 (2,600 kW each)
PropulsionTwo shafts; KaMeWa controllable pitch propellers
SpeedAbout 20 knots (37 km/h; 23 mph)
Complement60
Sensors and
processing systems
  • ANCS-2000 CMS, Link-16, Link-22
  • Furuno S/X (nav radars)
  • Saab 9LV325E FCS (Fire Control System)
  • Simrad hull-mounted sonar
  • EADS TRS-3D/16 ES (Surveillance Radar)
  • Sagem EOMS (Electro Optical Multisensor System)
Electronic warfare
& decoys
  • Decoy: 2 × MASS (Multi Ammunition Softkill Systems)
  • ESM: Thales DR3000 SIEWS (Shipborne Integrated Electronic Warfare System)
  • COMS-ESM
  • LWR
Armament
  • 1 × Bofors 57 mm/70 Mk1
  • 8-cell Denel Umkhonto-IR VLS SAM system
  • 2 × 12.7 mm machine gun
  • 2 × H&K GMG grenade machinegun
  • 2 × RBU-1200 depth charge rocket launcher
  • 2 × rails for depth charges
  • 4 × rails for 100-150 mines
ArmorVital areas Kevlar- and ArmourSteel protection
Notes
  • Ships in class include:
  • FNS Hämeenmaa (02)
  • FNS Uusimaa (05)

The ships have a steel hull and aluminum alloy superstructure. The class has an ice operating classification of ICE-1A and can operate year-round in ice up to 40 cm thick.

During a crisis the main task for the Hämeenmaa-class ships is minelaying, but the vessels can also act as escort, transport and depot ships.

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