BC Ferries C-Class

The Cowichan class, also known as the "C" class, is a series of 5 vessels owned and operated by BC Ferries.

While all 5 vessels share the same hull and engines/propulsion equipment, there are large differences between their superstructures: Queen of Alberni was originally built as a single-deck vessel with the primary purpose of carrying overheight vehicles; it was raised in 1984 to add an upper underheight vehicle deck, more closely matching the capacity of the other Cowichan class vessels. The last two vessels were built in 1981, 5 years after the first three, and have larger passenger areas that extend further along the length of the ship. Like the Victoria class before it, construction of the Cowichan class was split between the Vancouver Shipyard/Burrard Drydock in Vancouver, and Yarrows Ltd. in Victoria.

The Cowichan class vessels were the highest capacity vessels at the time for BC Ferries, built to accommodate increasing ridership, and to carry larger volumes of vehicles than existing ships. They were also the first large double-ended ferries built for BC Ferries. Being double-ended, they do not need to turn around in harbour, providing for faster arrival/departures at terminals. BC Ferries sometimes operates these vessels with single bridge if the stern propulsion or steering gear are having problems which requires them to turn around near the terminal. The Queen of Coquitlam, Queen of Cowichan, Queen of Surrey, Queen of Oak Bay have articulating ramp between deck 3 and deck 4 which mainly used in berth 1 at Langdale Terminal due it not being double decker berth.

The larger Cowichan class vessels are not as maneuverable as previous ships, which was demonstrated by the grounding of Queen of Alberni in 1979. After the grounding, Cowichan class vessels were required to operate in the slower but more maneuverable "docking" mode when transiting through Active Pass, which makes it unfeasible to operate on routes that use Active Pass. As such, they are now primarily found on routes 2, 3, and 30.

The first three vessels (Queen of Coquitlam, Queen of Cowichan, Queen of Alberni) replaced four second-hand vessels: Sunshine Coast Queen, Sechelt Queen, Langdale Queen, and the original Queen of Surrey, the latter of which was refitted to become Queen of the North. No vessels were directly retired by the final two vessels built (Queen of Surrey and Queen of Oak Bay), although they did allow for service expansion.

Queen of Coquitlam

Queen of Coquitlam
Built	1976, Vancouver
Home base	Langdale (summer), Departure Bay (off-peak)
Route(s) served	3 (summer), 2, 3, 30 (replacement)

Queen of Coquitlam is the first Cowichan class vessel built for BC Ferries.

Upon entering service, the vessel was placed on route 2, as the primary vessel out of Horseshoe Bay, opposite its sister vessel Queen of Cowichan. In 1981, newly delivered Queen of Oak Bay replaced it as the primary vessel out of Horseshoe Bay. Queen of Coquitlam then became a backup vessel, providing supplemental sailings out of Departure Bay.

Queen of Coquitlam was the prototype vessel for the midlife refurbishment of the Cowichan class, returning to service in 2003. It was initially hampered by mechanical issues and capacity issues caused by its new evacuation slides, which was later sorted out. After refurbishment, it became the primary vessel on route 2 again, until once again being replaced by Queen of Oak Bay after it returned from its midlife refurbishment in 2006. Currently, Queen of Coquitlam provides secondary sailings on route 3 out of Langdale during the summer months; during the rest of the year, it provides supplemental sailings on route 2, and replaces other C-class vessels for refits or repairs.

Engines	Max speed	Length	Displacement	Vehicle capacity	Passenger capacity
Two MaK 12M551AK 11,860 hp	20.5 knots	139 m	6,465 tonnes	360 autos 12 semis	1,494

Queen of Cowichan

Queen of Cowichan
Built	1976, Victoria
Home base	Departure Bay
Route(s) served	2 (year round), 3 (shoulder peaks)

Queen of Cowichan is the 2nd Cowichan class vessel built for BC Ferries.

Upon entering service, Queen of Cowichan was placed on route 2 as the primary vessel out of Departure Bay, opposite its twin vessel Queen of Coquitlam. In 1981, newly delivered Queen of Surrey replaced it, and Queen of Cowichan was shifted to route 3, where it operated until March 1996, being replaced again by Queen of Surrey.

After being relieved of operation on route 3, Queen of Cowichan then had a minor refit done, and was moved back to Departure Bay to operate as the primary vessel on route 2. It became the secondary vessel out of Departure Bay when the PacifiCat class operated from 1999-2000, and when Coastal Renaissance operated on route 2 during peak seasons from 2008-2021.

Queen of Cowichan was the 2nd vessel to receive its midlife refurbishment, returning to service in June 2004.

Engines	Max speed	Length	Displacement	Vehicle capacity	Passenger capacity
Two MaK 12M551AK 11,860 hp	20.5 knots	139 m	6,508 tonnes	360 autos 12 semis	1,494

Queen of Alberni

Queen of Alberni
Built	1976, Vancouver
Home base	Tsawwassen
Route(s) served	30

Queen of Alberni is the 3rd Cowichan class vessel built for BC Ferries.

Unlike the other Cowichan class vessels built at the same time, Queen of Alberni was of a very different design. Originally intended to carry only semi-truck traffic between Vancouver and Victoria, it was designed to only have one larger vehicle deck. This lead to a much lower vehicle capacity of 145 vehicles, but it could carry double the amount of semi-trucks. Queen of Alberni was placed into service on route 1.

On August 9, 1979, Queen of Alberni ran aground near Galiano Island at the entrance to Active Pass. The vessel tipped almost 30 degrees, and although all passengers were evacuated safely, there was major damage to the vehicles stored on its deck, and a racehorse being transported needed to be euthanized. After the accident, the Cowichan class was restricted to operating in "docking" mode through Active Pass, which is slower but more maneuverable. Because of the limitations of operating on route 1, Queen of Alberni was later transferred to be a secondary vessel on route 2, based out of Departure Bay.

To increase the vehicle capacity of Queen of Alberni, it was lifted in 1984 to have an upper vehicle deck inserted for underheight vehicles. The passenger areas were also expanded at this time. By the mid-1980s, its lower vehicle capacity and odd configuration lead to it becoming a spare vessel, operating on routes 2, and 3 when replacing another vessel. With the introduction of the new Mid-Island Express route 30 in 1991, Queen of Alberni was deemed to be a perfect fit, as the new route was expected to have a high volume of truck traffic. Queen of Alberni was assigned to the Departure Bay (later Duke Point) end, but was switched to the opposite terminal (Tsawwassen) when Coastal Inspiration entered service in 2008.

Queen of Alberni was the last Cowichan class vessel to undergo its midlife refurbishment, returning to service in June 2007. For Summer 2022, Queen of Alberni was transferred to operate supplementary sailings on route 2, based out of Departure Bay; its normal role on route 30 was replaced by Coastal Renaissance. It was transferred back to route 30 for Summer 2023 to provide a three-vessel service.

Engines	Max speed	Length	Displacement	Vehicle capacity	Passenger capacity
Two MaK 12M551AK 12,000 hp	22 knots	139 m	6,422 tonnes	290 autos 24 semis	1,200

Queen of Surrey

Queen of Surrey
Built	1981, Vancouver
Home base	Langdale
Route(s) served	3

Queen of Surrey is the 4th Cowichan class vessel built for BC Ferries, and the first of two built in 1981.

Upon entering service in 1981, Queen of Surrey was placed on route 2 as the primary vessel out of Departure Bay, opposite its twin vessel Queen of Oak Bay. In March 1996, Queen of Surrey was moved to Langdale to operate on route 3, replacing Queen of Cowichan. It has been the year-round vessel on route 3 ever since.

Queen of Surrey suffered a severe engine fire on May 17, 2003; it had to be rescued by the nearby Queen of Capilano, who prevented it from drifting into a nearby island, and towed it to Langdale to offload. The fire caused significant damage to the engine, and repairs were necessary to the floor of the main car deck. No passengers or vehicles were damaged in the fire, however, and the vessel returned to service a few months later.

Queen of Surrey was the 4th Cowichan class vessel to receive its mid-life refurbishment, returning to service in June 2006.

Engines	Max speed	Length	Displacement	Vehicle capacity	Passenger capacity
Two MaK 12M551AK 11,860 hp	20.5 knots	139 m	6,556 tonnes	360 autos 12 semis	1,494

Queen of Oak Bay

Queen of Oak Bay
Built	1981, Victoria
Home base	Horseshoe Bay
Route(s) served	2

Queen of Oak Bay is the 5th and final Cowichan class vessel built for BC Ferries.

Upon entering service in 1981, it was briefly operated on route 1, before being moved to route 2 as the primary vessel out of Horseshoe Bay, opposite its twin vessel Queen of Surrey. It continues to serve in this role to this day.

Queen of Oak Bay was the 3rd Cowichan class vessel to receive its midlife refurbishment, returning to service in June 2005.

On June 30th, 2005, less than two weeks after returning from refurbishment, Queen of Oak Bay lost power four minutes before docking at Horseshoe Bay. The vessel crashed into nearby Sewell's Marina, damaging more than two dozen small craft and was grounded on the shore receiving minor damage. The cause was a missing cotter pin in one engine, causing it to increase in speed until tripping a fail-safe governor. The vessel was repaired quickly, and returned to service on July 8, 2005.

Engines	Max speed	Length	Displacement	Vehicle capacity	Passenger capacity
Two MaK 12M551AK 11,840 hp	20.5 knots	139 m	6,673 tonnes	360 autos 12 semis	1,494