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Naval / patrol
Operated by Royal Canadian Navy
Photo: U.S. Coast Guard Petty Officer 3rd Class Matthew Abban · Public domain · file
Largest in this registry
#39,539
of 84,014 with a recorded tonnage
Largest naval / patrol
#57
of 268 of this type with a recorded tonnage
Largest in its fleet
#2
of 5 in this fleet with a recorded tonnage
In brief
HMCS Margaret Brooke (AOPV 431) is the second Harry DeWolf-class offshore patrol vessel for the Royal Canadian Navy (RCN). 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, an RCN nursing sister who tried to save another person during the sinking of the ferry SS Caribou during World War II. Margaret Brooke was ordered in 2011, laid down in 2016 and launched in 2019. The vessel began contractor sea trials in May 2021, and she was delivered to the Royal Canadian Navy for post-acceptance sea trials on 15 July 2021. The official naming ceremony for the ship was conducted on 29 May 2022 in conjunction with that for sister ship Max Bernays. The vessel was commissioned on 28 October 2022.
Vessel particulars
Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.
Identification
Construction
Measurements
In context
Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.
At 7,449 gross tons, HMCS Margaret Brooke is the 39,539th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 1.2 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 611 naval / patrols held here, it ranks 57th by tonnage — larger than 79% of that group. Their median tonnage is 1,325 GT, and the largest tenth begin at 23,606 GT. The flag most often flown by this group is United States (136 ships). The yard that appears most often against it is Austal, with 33 hulls on record.
Canada is the country of registry for 633 vessels in this directory, of which HMCS Margaret Brooke is the 130th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (404 ships), and the median vessel measures 1,800 GT. Browse every ship flagged Canada.
Narrowing to both dimensions at once, this registry holds 13 naval / patrols flying the Canada flag, of which none is larger than HMCS Margaret Brooke.
The registry attributes 2 vessels to Irving Shipbuilding, with a median tonnage of 7,045 GT, delivered between 2021 and 2021. See the rest of that yard’s output.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 4702515 this registry holds 6 other vessels, whose median build year is 2021. That places this hull’s registration in the same part of the series; no build year is recorded for this vessel itself.
Its IMO number, 4702515, carries its own check digit. The first six digits are weighted seven down to two and summed — 4×7 + 7×6 + 0×5 + 2×4 + 5×3 + 1×2 = 95 — and the last digit of that total, 5, must equal the seventh digit, 5. It does, so this number is well formed.
Nearest by tonnage among naval / patrols
| Ship | Built | Gross tonnage |
|---|---|---|
| HMS Challenger | 1984 | 9,111 |
| Academic Pashin | 2016 | 7,508 |
| JCG Shikishima | — | 7,500 |
| HMCS Margaret Brooke (this ship) | — | 7,449 |
| JCG Akitsushima | 2013 | 7,354 |
| HMNZS Endeavour | 1988 | 6,990 |
Record
Events recorded against this vessel in the source, with the dates the source gives. An event with no date is listed last rather than assigned one.
Class
| Ship | IMO | Flag | Built | Gross tonnage |
|---|---|---|---|---|
| HMCS Harry DeWolf | 4702503 | Canada | 2021 | 6,641 |
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from HMCS Margaret Brooke on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy U.S. Coast Guard Petty Officer 3rd Class Matthew Abban, reused under Public domain.
| HMCS Harry DeWolf |
| 2021 |
| 6,641 |