HMCS Margaret Brooke

Margaret Brooke (AOPV 431) is the second Harry DeWolf-class offshore patrol vessel for the Royal Canadian Navy. The class was derived from the Arctic Offshore Patrol Ship project as part of the National Shipbuilding Procurement Strategy and is primarily designed for the patrol and support of Canada's Arctic regions. Named after Sub-Lieutenant Margaret Brooke, a Royal Canadian Navy Nursing Sister and who tried to save another person during the sinking of the ferry SS Caribou during World War II. The vessel was ordered in 2011, laid down in 2016 and launched in 2019. The vessel is currently finishing construction.

History
Canada
Name: Margaret Brooke
Namesake: Margaret Brooke
Ordered: 19 October 2011
Builder: Irving Shipbuilding, Halifax, Nova Scotia
Laid down: 29 May 2017
Launched: 10 November 2019
Status: Launched
General characteristics
Type: Harry DeWolf-class offshore patrol vessel
Displacement: 6,615 t (6,511 long tons; 7,292 short tons)
Length: 103.6 m (339 ft 11 in)
Beam: 19.0 m (62 ft 4 in)
Installed power: 4 × 3.6 MW (4,800 hp) generators
Propulsion:
  • Diesel-electric
  • 2 shafts
  • 2 × 4.5 MW (6,000 hp)
Speed:
  • 17 knots (31 km/h; 20 mph) (open water)
  • 3 knots (5.6 km/h; 3.5 mph) (icebreaking)
Range: 6,800 nmi (12,600 km)
Boats & landing
craft carried:		 2 × multi-role rescue boats (ABCO Industries 12m landing craft)
Complement: 65
Armament:
  • 1 × BAE Mk 38 25 mm
  • 2 × M2 Browning machine gun
Aircraft carried: Sikorsky CH-148 Cyclone
Aviation facilities: Hangar and flight deck

Design and description

The Harry DeWolf-class offshore patrol vessels are designed for use in the Arctic regions of Canada for patrol and support within Canada's exclusive economic zone. The vessel is 103.6 m (339 ft 11 in) long overall with a beam of 19.0 m (62 ft 4 in). The ship has a displacement of 6,615 metric tons (6,511 long tons; 7,292 short tons). The ship has an enclosed foredeck that protects machinery and work spaces from Arctic climates. The vessel is powered by a diesel-electric system composed of four 3.6-megawatt (4,800 hp) generators and two diesel engines rated at 4.5 megawatts (6,000 hp) driving two shafts. Margaret Brooke is capable of 17 knots (31 km/h; 20 mph) in open water and 3 knots (5.6 km/h; 3.5 mph) while icebreaking in new year ice of 1-metre (3 ft 3 in) thickness. The ship is also equipped with a bow thruster to aid during manoeuvres and docking procedures without requiring tugboat assistance. The ship has a range of 6,800 nautical miles (12,600 km; 7,800 mi) and an endurance of 85. Margaret Brooke is equipped with fin stabilizers to decrease roll in open water but can be retracted during icebreaking.[1][2][3]

Margaret Brooke is able to deploy with multiple payloads, including shipping containers, underwater survey equipment or landing craft. Payload operations are aided by a 20-metric-ton (20-long-ton; 22-short-ton) crane for loading and unloading. The ship is equipped with a vehicle bay which can hold can pickup trucks, all-terrain vehicles and snowmobiles. The ship also has two 8.5-metre (27 ft 11 in) multi-role rescue boats capable of over 35 knots (65 km/h; 40 mph). The ship is armed with one BAE Mk 38 25 mm (0.98 in) gun and two M2 Browning machine guns. The patrol ship has an onboard hangar and flight deck for helicopters up to the size of a Sikorsky CH-148 Cyclone. Margaret Brooke has a complement of 65 and accommodation for 85.[1][2][3]

Service history

The order for the Arctic Offshore Patrol Ships was placed on 19 October 2011 with Irving Shipyards of Halifax, Nova Scotia as part of the National Shipbuilding Procurement Strategy.[4] The ship was to be constructed in 62 blocks, which were then pieced together into three larger blocks. These three "mega blocks" would be fitted together to form the hull of the ship.[1] On 13 April 2015 the government announced a second ship would be named Margaret Brooke in honour of Margaret Brooke. During World War II, Brooke, a navy nursing sister, was decorated for her actions during the sinking of the passenger ferry SS Caribou.[5][6] The vessel's keel was laid down on 29 May 2017[7] and the vessel was launched on 10 November 2019.[8]

References
  1. Pugliese, David (16 January 2015). "Arctic Offshore Patrol Ships to be constructed in three "mega blocks"". Ottawa Citizen. Archived from the original on 31 October 2018. Retrieved 31 October 2018.
  2. "Arctic/Offshore Patrol Ships". Royal Canadian Navy. January 2015. Archived from the original on 31 October 2018. Retrieved 31 October 2018.
  3. "Harry DeWolf-class Arctic/Offshore Patrol Ship Factsheet" (PDF). Department of National Defence of Canada. January 2015. Archived from the original (PDF) on 31 October 2018. Retrieved 31 October 2018.
  4. Woods, Allan (19 October 2011). "Two winners and one big loser in contest to build military ships". The Toronto Star. Archived from the original on 31 October 2018. Retrieved 31 October 2018.
  5. "New Royal Canadian Navy ship to be named after naval hero of SS Caribou sinking" (Press release). Government of Canada. 13 April 2015. Archived from the original on 14 April 2015. Retrieved 13 April 2015.
  6. Macvicar, Adam (16 March 2018). "Royal Canadian Navy ship named after Saskatchewan war hero". Global News. Retrieved 14 November 2019.
  7. "Keel-laying ceremony for HMCS Margaret Brooke marks a shipbuilding milestone" (Press release). Department of National Defence of Canada. 29 May 2017. Archived from the original on 1 June 2017. Retrieved 30 May 2017.
  8. "Halifax Shipyard launches Canada's second Arctic and Offshore Patrol Ship". globenewswire.com (Press release). Irving Shipbuilding. 10 November 2019. Retrieved 13 November 2019.
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