page_title: List of naval ship classes in service
section_title: Large patrol vessels
hierarchical_section_title: List of naval ship classes in service / Large patrol vessels
caption_attribution_description: USCGC Spencer (WMEC-905)
context_page_description: The list of naval ship classes in service includes all combatant surface classes in service currently with navies or armed forces and auxiliaries in the world. Ships are grouped by type, and listed alphabetically within.
  List of submarine classes in service
  List of auxiliary ship classes in service
context_section_description: Albatros polar fisheries patrol ship
  Displacement:  2,800 tons
  Operator:   French Navy
  Alex Haley–class cutter 
  Builder:  United States
  Type: Medium endurance cutter
  Displacement: 3,434 tons
  Armament:
  2x 25 mm guns
  2x 0.5 in guns
  Number in class: 1
  Operator:  United States Coast Guard
  BAM (Meteoro-class) Maritime Action Vessel / offshore patrol vessel
  Builder:   Spain
  Displacement:  2,840 tons
  Speed: 20.5 knots
  Range: 3,500 nm
  Armament: 1 x 76mm/62. 2 x 25mm. 2 x 12.7mm.
  Aircraft: 1 x NH-90 or 1 x AB-212 or 1 x SH3D
  Operator:   Spanish Navy:  6 in service
  Status: In active service
  Barentshav-class offshore patrol vessel
  Builder:  Norway
  Displacement: 3,200 tons
  Operator:  Royal Norwegian Navy: 2 in commission
  Cassiopea-class offshore patrol vessel
  Builder   Italy
  Displacement: 1475 tons
  Operator:   Italian Navy 4 in service
  Comandanti-class offshore patrol vessel
  Builder   Italy
  Displacement: 1512 tons
  Operator:   Italian Navy 4 in service
  Deirdre / P20 Class-class offshore patrol boat
  Builder:   Ireland
  Displacement:  1,020 tons
  Armament: 1 x 40mm 2 x 20mm
  Ships in class: 4
  Commissioned: 1972–1980
  Active: 2 (1 scrapped, 1 decommissioned (Ireland))
  Speed: 17knts
  Range: 4000 nmi at 17 knots
  Operator:  Maritime Squadron of the Armed Forces of Malta,  Nigerian Navy
  Previous operators: Ireland 4 (0 in commission)
  Eithne-class Helicopter patrol ship
  Builder:   Ireland
  Displacement:  1,915 tons
  Speed: 20+ knots
  Range: 7000 nmi at 15 knots
  Armament: 1 x Bofers 57mm/70 Mk.1 2 x 20mm Rheinmettal. 1 SA 365F Dauphin 2
  Ships in class: 1
  Commissioned: 1984
  Operator:   Irish Naval Service:  1
  Status: In active service
  Endurance Antarctic patrol ship
  Builder:   Norway
  Displacement 6,100 tons
  Operator:  Royal Navy  1 in commission
  Famous-class cutter
  Builder:   United States
  Type: Medium Endurance Cutter
  Displacement:  1,780 tons
  Armament:
  1x OTO Melara Mk 75 76 mm naval gun
  2x .50 cal machine guns
  Operator:   United States Coast Guard:  13 in commission
  Harstad-class offshore patrol vessel
  Builder:  Norway
  Displacement: 3,121 tons
  Operator:  Royal Norwegian Navy
  Holland-class offshore patrol vessel
  Builder:   Netherlands (Damen Schelde Naval Shipbuilding)
  Type: Offshore patrol vessel
  Displacement:  3,750 tons
  Aircraft:  1 NH-90
  Armament:  1 × 76 mm Oto Melara, 1 × 30 mm Oto Melara Marlin WS, 2 × 12.7 mm Oto Melara Hitrole NT, 6 × 7.62 mm FN MAG machine guns.
  Powerplant:  2 diesel engines
  Speed:  21.5 knots
  Ships in class:  4
  Operator:   Royal Netherlands Navy
  Commissioned:  2012
  Status:  In active service.
  Kingston-class patrol vessel
  Builder:   Canada
  Displacement:  970 tons
  Operator:   Royal Canadian Navy:  12 in commission
  Nordkapp-class offshore patrol vessel
  Builder:   Norway (Bergens mV A/S)
  Type: Offshore patrol vessel
  Displacement:  3,200 tons
  Aircraft:  1 Westland Lynx helicopter; in future, 1 NHI NH90 helicopter
  Armament:  1 Bofors 57 mm gun; 4 20 mm Rheinmetall guns; depth charges; in wartime provisions for carrying 2 Mk32 torpedo tubes and 6 Penguin SSMs
  Powerplant:  4x Wichmann diesel; 2576 kW each
  Speed:  23 knots (43 km/h)
  Ships in class:  3
  Operator:   Royal Norwegian Navy
  Commissioned:  1981
  Status:  In active service
  Reliance-class cutter
  Builder:   United States
  Type: Medium Endurance Cutter
  Displacement:  1,050 tons
  Length: 64 meters
  Range: 8,000 nautical miles
  Crew: 75
  Speed: 18 knots
  Armament:
  1x Mk 38 25mm autocannon
  2x M2HB .50 caliber (12.7mm) machine guns
  Operator:
   United States Coast Guard: 14 in commission
   Sri Lanka Navy: 1 in service
   Colombian National Navy: 1 in service
  River-class patrol vessel
  Builder:   United Kingdom  (Vosper Thornycroft)
  Type: Offshore patrol vessel
  Displacement:  1,677 tons
  Armament:  1 British Manufacturing and Research Company (BMARC) KAA 20 mm Gun, 2 GPMG's
  Powerplant:  2 × Ruston 12RK 270 diesel; 4125 kW
  Speed:  20 knots (37 km/h)
  Ships in class:  8, 3 building
  Operator:   Royal Navy  Brazilian Navy  Royal Thai Navy
  Commissioned:  2003
  Status:  In active service
  LÉ Róisín / P50-class offshore patrol boat
  Builder:   United Kingdom
  Displacement:  1,500 tons
  Speed: 23 knots
  Armam
caption: Spencer
exif: {}