List of Naval Ship Classes in Service - Large Patrol Vessels

Large Patrol Vessels

Albatros polar fisheries patrol ship

• Displacement: 2,800 tons
• Operator: French Navy

Buque de Acción Marítima (BAM) class, Offshore Patrol Vessel (OPV)

• Builder: Spain
• Displacement: 2,500 tons
• Operator: Spanish Navy: 3 in commission (plus 1 building, 4+ planned)

Barentshav class offshore patrol vessel

• Builder: Norway
• Displacement: 3,200 tons
• Operator: Royal Norwegian Navy: 2 in commission

Bear class patrol cutter (WMEC 901)

• Builder: United States
• Displacement: 1,780 tons
• Operator: United States Coast Guard: 13 in commission

Cassiopea class offshore patrol vessel

• Builder Italy
• Displacement: 1475 tons
• Operator: Marina Militare 4 in service

Cassiopea 2 class offshore patrol vessel

• Builder Italy
• Displacement: 1518 tons
• Operator: Marina Militare 2 in service

Comandanti class offshore patrol vessel

• Builder Italy
• Displacement: 1512 tons
• Operator: Marina Militare 4 in service

HMS Clyde (P257) offshore patrol vessel

• Builder United Kingdom
• Displacement: 1850 tons
• Operator: Royal Navy 1 in commission

Eithne class patrol ship

• Builder: Ireland
• Displacement: 1,915 tons
• Operator: Irish Naval Service: 1 ship acquired in 1984

Endurance Antarctic patrol ship

• Builder: Norway
• Displacement 6,100 tons
• Operator: Royal Navy 1 in commission

Harstad offshore patrol vessel

• Builder: Norway
• Displacement: 3,121 tons
• Operator: Royal Norwegian Navy

Hamilton class cutter

• Builder: United States (Avondale Shipyard)
• Type: United States Coast Guard Cutter
• Displacement: 3,250 tons
• Aircraft: 1 HH-65 Dolphin or HH-60 Jayhawk
• Armament: 1 Otobreda 76 mm gun; 1 20 mm Phalanx CIWS
• Powerplant: 2 diesel engines and 2 gas turbines
• Speed: 20 knots
• Ships in class: 12
• Operator: United States Coast Guard Philippine Navy
• Commissioned: December 18, 1965
• Fate: In active service

Kingston class patrol vessel (MM 700)

• Builder: Canada
• Displacement: 970 tons
• Operator: Royal Canadian Navy: 12 in commission

Nordkapp class OPV

• 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
• Fate: In active 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 x Ruston 12RK 270 diesel; 4125 kW
• Speed: 20 knots (37 km/h)
• Ships in class: 3, (plus a modified fourth Batch II vessel, HMS Clyde)
• Operator: Royal Navy
• Commissioned: 2003
• Fate: In active service

Roisin class patrol boat

• Builder: United Kingdom
• Displacement: 1,700 tons
• Operators:
  • Irish Naval Service: 2 new-build boats acquired since 1999

Svalbard offshore patrol vessel

• Builder: Norway
• Displacement: 6,500 tons
• Operator: Royal Norwegian Navy

Ægir class OPV

• Builder: Denmark (Aalborg Værft a/s)
• Type: Offshore patrol vessel
• Displacement: 1,128 tons
• Aircraft: 1 Ecureuil AS350B or Hughes 500C
• Armament: 1 Bofors 40 mm gun; 12.7 mm Browning HMG; depth charges.
• Powerplant: MAN 8L40/54 x 2, 3163 kW
• Speed: 20 knots
• Ships in class: 2
• Operator: Icelandic Coast Guard
• Commissioned: 1968
• Fate: In active service

Þór offshore patrol vessel

• Builder: Chile
• Displacement: 3,920 tons
• Operator: Icelandic Coast Guard