Design Harry DeWolf-class offshore patrol vessel

1 design

1.1 propulsion , power
1.2 armament
1.3 sensors

design

the vessels design intended incorporate conventional icebreaking bow cruising, , have proceeded backwards breaking heavy ice. vessels stern have been designed ice breaking , have employed azimuth thrusters propulsion , chewing through resistant ice. however, due cost constraints, conventional bow-first design chosen both light , heavy icebreaking. propulsion provided diesel-electric twin shafts bolt-on propellers, similar existing canadian coast guard icebreakers.

the vessels have hangar , flight deck capable of employing , maintaining same maritime helicopters rcn s other vessels: ch-148 cyclone when enters service royal canadian air force (rcaf) , ch-149 cormorant.

in 2008, contract awarded bmt fleet technology , stx canada marine assist in developing technical specifications , design project. technical specifications used draft request proposals. government later awarded design contract bmt fleet technology , stx canada marine develop design of vessel issue selected nsps proponent.

the ships built in 3 large mega blocks; centre, aft , bow. each mega block consist of 62 smaller building blocks. first steel cut on harry dewolf in september 2015.

the ships designed displace 6,440 metric tons. capable of outfitting multiple payload options such shipping containers, underwater survey equipment, or landing craft. vessels have 20-tonne crane self-load/unload, , vehicle bay carry vehicles deployment on ice. design calls enclosed cable deck , forecastle better cope arctic environment. on open sea, ship has fin stabilizers reduce roll retractable during ice operations.

propulsion , power

the vessels have diesel-electric powertrain 4 3.6-megawatt (4,800 hp) diesel generators producing electricity 2 4.5-megawatt (6,000 hp) propulsion motors.

armament

in august 2015, announced bae systems had won contract provide 6 modified mk 38 25 mm cannon class. contract covers service life of weapons.

sensors

in september 2015, announced ships outfitted sagem bluenaute navigational systems. on 7 october 2015, thales iff system selected use on class. terma provides scanter 6002 radar system lockheed martin canada part of combat management system (cms 330), selected irving shipbuilding inc. arctic , offshore patrol ships (aops).